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You searched for: Subject Gossypium hirsutum Remove constraint Subject: Gossypium hirsutum Subject term cultivars Remove constraint Subject term: cultivars
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1. Performance of cotton cultivars and strains in South Carolina - 1998

Author:
May, O.L.; Sullivan, M.J.; Barefield, D.K. Jr.; Robinson, D.M.; Veasey, G.M.
Source:
Performance of field crops in South Carolina section 3, cotton / O.L. May ... [et al.] pp. -
Subject:
cotton; variety trials; cultivars; Gossypium hirsutum; geographical variation; agronomic traits; fiber quality; lint yield; South Carolina
Handle:
10113/47655

2. Varietal and seasonal variation of "motes" in upland cotton

Author:
Rea, H.E.
Source:
Agronomy journal 1929 v.21 no.4 pp. 481-486
ISSN:
0002-1962
Subject:
Gossypium hirsutum; abnormal development; seasonal variation; cultivars; Texas
Abstract:
... The results of the study on the percentage of the motes made in 16 varieties grown in 1925 and 1926 justify the following conclusions: 1. The occurrence of motes in the commercial varieties of cotton studied was very common. In a study embracing two years, 1,323 plants were examined and only 2 failed to have any motes. 2. The percentage of motes occurring in the commercial varieties of cotton stud ...
DOI:
10.2134/agronj1929.00021962002100040013x

3. Registration of improved cotton varieties. I

Author:
Brown, H.B.
Source:
Agronomy journal 1936 v.28 no.12 pp. 1019-1020
ISSN:
0002-1962
Subject:
germplasm; hybrids; lint cotton; Gossypium hirsutum; high-yielding varieties
Abstract:
... The following cotton varieties have been registered as improved varieties and assigned registration numbers as follows: Variety Reg. No. Deltapine 32 Ambassador 33 Washington 34 ...
DOI:
10.2134/agronj1936.00021962002800120010x

4. Natural crossing in cotton in Western Punjab. II. Natural crossing under field conditions

Author:
Afzal, M.; Khan, A.H.
Source:
Agronomy journal 1950 v.42 no.2 pp. 89-93
ISSN:
0002-1962
Subject:
Gossypium arboreum; Gossypium hirsutum; cultivars; cross pollination; hybridization; open pollination; Pakistan
Abstract:
... Natural crossing in cotton has been studied under field conditions. It has been found that the extent of natural crossing was very small indeed. The border 12.5 feet of the crop in contiguous fields was the worst affected. Natural crossing decreased steadily with the distance and 100 feet was an absolutely safe distance. The extent of natural crossing was equal in all directions. It was also seen ...
DOI:
10.2134/agronj1950.00021962004200020004x

5. Registration of improved cotton varieties. IV

Author:
O'Kelly, J.F.
Source:
Agronomy journal 1950 v.42 no.1 pp. 53
ISSN:
0002-1962
Subject:
Gossypium hirsutum; cultivars; agronomic traits
DOI:
10.2134/agronj1950.00021962004200010009x

6. Variability in the properties of lint of upland cotton

Author:
Green, J.M.
Source:
Agronomy journal 1950 v.42 no.7 pp. 338-341
ISSN:
0002-1962
Subject:
physical properties; cultivars; lint cotton; Gossypium hirsutum; cottonseed; genetic variation; fiber quality
Abstract:
... Frequency distributions presented for several characters in upland cotton approach a normal distribution and indicate considerable variation within the species. In the case of length, fineness, and strength the local varieties used as checks have become stabilized near the mean of the entire sample. Conscious selection for staple length has been practiced for many years, and apparently fineness ha ...
DOI:
10.2134/agronj1950.00021962004200070005x

7. Influence of Mulches on the Growth and Development of Cotton Grown on Verticillium-infested Soil

Author:
W. L. Barrentine; B. A. Waddle
Source:
Agronomy journal 1972 v.64 no.5 pp. 616-618
ISSN:
0002-1962
Subject:
Gossypium hirsutum; analysis of covariance; bitumen; crop yield; cultivars; field experimentation; leaves; mulches; seed cotton; seedling growth; seedlings; soil temperature
Abstract:
... Soil surface mulches of asphalt, asphalt + white paint, cotton burs, and no-mulch or check were compared in a field experiment involving cotton (Gossypium hirsutum L.) grown on verticillium wilt-infested soil to determine if resulting changes in soil temperature could influence wilt incidence. Mean soil temperature, dry weight of seedling cotton plants, and seed cotton yield at first harvest were ...
DOI:
10.2134/agronj1972.00021962006400050020x

8. Cotton Leaf Temperatures as Related to Soil Water Depletion and Meteorological Factors

Author:
William L. Ehrler
Source:
Agronomy journal 1973 v.65 no.3 pp. 404-409
ISSN:
0002-1962
Subject:
Gossypium barbadense; Gossypium hirsutum; air temperature; canopy; climate; cotton; cultivars; drought; field experimentation; irrigated farming; irrigation scheduling; leaves; lint yield; plant response; plant-water relations; soil water; soil water deficit; soil-plant interactions; stomatal movement; surge irrigation; vapor pressure
Abstract:
... In two field experiments with cotton (Gossypium), the relation between moderate soil water depletion and leaf-air temperature difference (ΔT) was investigated for feasibility of measurement and possible use as a guide to irrigation scheduling. Hourly temperatures of the upper leaves and of the air 1 m above the canopy were obtained for three cultivars of short-staple cotton (G. hirsutum L.) and on ...
Handle:
10113/55274
DOI:
10.2134/agronj1973.00021962006500030016x

9. Determinate Cotton Cultivars for More Efficient Cotton Production on Medium-Textured Soils in the Lower Rio Grande Valley of Texas

Author:
L. N. Namken; M. D. Heilman
Source:
Agronomy journal 1973 v.65 no.6 pp. 953-956
ISSN:
0002-1962
Subject:
Gossypium hirsutum; cotton; crop production; cultivars; defoliation; early development; fiber quality; fruiting; fruits; harvest date; insect control; rain; soil texture; Texas
Abstract:
... The short-season concept (early defoliation and early harvest) offers, perhaps, the greatest potential for increasing the efficiency of cotton (Gossypium hirsutum L.) production and for minimizing insect control requirements in the Lower Rio Grande Valley of Texas. Early defoliation also allows harvesting during the most optimum period in relation to expected rainfall. The fruiting, earliness, yie ...
DOI:
10.2134/agronj1973.00021962006500060032x

10. Dissipation and Phytotoxicity of Dicamba Residues in Water

Author:
C. J. Scifres; T. J. Allen; C. L. Leinweber; K. H. Pearson
Source:
Journal of environmental quality 1973 v.2 no.2 pp. 306-309
ISSN:
0047-2425
Subject:
Cucumis sativus; Gossypium hirsutum; Sorghum bicolor; cotton; crops; cucumbers; cultivars; dicamba; herbicide residues; irrigation water; phytotoxicity; ponds; sediments; seedlings; summer; surface area; temperature
Abstract:
... The herbicide, 3-6-dichloro-o-anisic acid (dicamba), dissipated most rapidly from water under non-sterile, lighted conditions. Pond sediment evidently contained microbial populations capable of decomposing the herbicide. Temperature was crucial in dicamba dissipation, especially in the presence of sediment. Influence of sediment on dissipation rate of dicamba was apparently augmented by light in s ...
DOI:
10.2134/jeq1973.00472425000200020032x

11. The Effect of Fallowing Obtained with Skip-Row Culture on Verticillium Wilt of Cotton

Author:
C. D. Ranney
Source:
Journal of environmental quality 1973 v.2 no.2 pp. 303-306
ISSN:
0047-2425
Subject:
Gossypium hirsutum; Verticillium; Verticillium wilt; cotton; crop production; cultivars; fallow; micronaire; row spacing; seed quality
Abstract:
... Skip-row production of cotton (Gossypium hirsutum L.), plant-4-rows-skip-4-rows, permits clean fallowing of the nonplanted rows. The fallow obtained from this cultural practice was effective in reducing Verticillium wilt (Verticillium dalhiae Kelb.) incidence, increasing yield, and improving fiber and seed quality. Irrespective of cultivar used during the 2-year study, cotton produced on plots fal ...
DOI:
10.2134/jeq1973.00472425000200020031x

12. Effect of Multiple Applications of 2,3,5-Triiodobenzoic Acid (TIBA) on Yields of Stormproof and Nonstormproof Cotton

Author:
A. H. Freytag; E. A. Coleman
Source:
Agronomy journal 1973 v.65 no.4 pp. 610-612
ISSN:
0002-1962
Subject:
Glycine max; Gossypium hirsutum; benzoic acids; buds; crop yield; crops; cultivars; dwarfing; epinasty; flowering; flowers; foliar application; fruiting; leaves; pods; seed cotton; soybeans
Abstract:
... Field grown upland cotton (Gossypium hisutum L.) usually matures approximately 30 to 40% of the flowers that reach anthesis. Several investigators have shown 2,3,5-triiodobenzoic acid (TIBA) to be successful in causing the retention of buds, blooms and pods of soybeans (Glycine max (L.) Merr.) Virtually no results have been reported on the use of TIBA to retain the 30 to 40% flower shed that occur ...
DOI:
10.2134/agronj1973.00021962006500040024x

13. Effect of Planting Date on the Yield and Fiber Properties of Three Cotton Cultivars

Author:
J. D. Bilbro; L. L. Ray
Source:
Agronomy journal 1973 v.65 no.4 pp. 606-609
ISSN:
0002-1962
Subject:
Gossypium hirsutum; cultivars; environmental factors; fineness; lint cotton; micronaire; planting date
Abstract:
... For a number of reasons, cotton (Gossypium hirsutum L.) cannot always be planted at the most optimum time. Because information was needed relative to the effects of different planting dates on the yields and fiber properties of various types of cultivars, we studied for 5 years the responses of three cotton cultivars to planting dates. The planting dates each year were approximately April 20, June ...
DOI:
10.2134/agronj1973.00021962006500040023x

14. Effect of Soil Moisture During Early Stages of Development on Growth and Yield of Cotton Plants

Author:
A. Marani; D. Levi
Source:
Agronomy journal 1973 v.65 no.4 pp. 637-641
ISSN:
0002-1962
Subject:
Gossypium hirsutum; climatic factors; coastal plains; cotton; cultivars; flowering; fruiting; irrigation; leaf area; leaf area index; lint yield; soil water; temperature
Abstract:
... The effect of three irrigation treatments on the vegetative development of two cultivars of upland cotton (Gossypium hirsutum L.) was studied in two experiments conducted under different climatic conditions. The treatments differed until the middle of flowering and were designated as L (no irrigation), M (regular), and H (early and excessive irrigation). From mid-flowering onwards all plots were i ...
DOI:
10.2134/agronj1973.00021962006500040032x

15. Incorporation of 14C-Photosynthate into Developing Cotton Bolls, Gossypium hirsutum L.

Author:
C. R. Benedict; R. H. Smith; R. J. Kohel
Source:
Crop science 1973 v.13 no.1 pp. 88-91
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cotton; cultivars; flowering
Abstract:
... Incorporation of ¹⁴C-photosynthate into developing cotton (Gossypium hirsutum L.) bolls of several ages was studied in the cultivar ‘Paymaster III.’ Maximum incorporation of ¹⁴C-assimilate into developing boll walls and fiber occurred at 8 to 10 and 23 to 40 days after anthesis, respectively. ¹⁴C-photosynthate incorporation was rapidly increasing in the developing fibers prior to the completion of ...
DOI:
10.2135/cropsci1973.0011183X001300010028x

16. Pima Cotton Lint Yield as Influenced by Irrigation Schedule, Cultivar and Altitude

Author:
D. L. Kittock
Source:
Agronomy journal 1973 v.65 no.3 pp. 498-501
ISSN:
0002-1962
Subject:
Gossypium barbadense; Gossypium hirsutum; altitude; climate; cultivars; heat tolerance; irrigation scheduling; lint cotton; lint yield; soil profiles; water requirement
Abstract:
... Development of heat tolerant cultivars of American Pima cotton (Gossypium barbadense L.) made it desirable to re-evaluate irrigation practices for hot climates. To accomplish this, two cultivars and one experimental strain were tested over a period of 6 years at two altitudes (climates) and under several irrigation regimes. There were three basic irrigation regimes and several modifications of the ...
DOI:
10.2134/agronj1973.00021962006500030043x

17. Recurrent Selection for Lint Percent within a Cultivar of Cotton (Gossypium hirsutum L.)

Author:
William R. Meredith; R. R. Bridge
Source:
Crop science 1973 v.13 no.6 pp. 698-701
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; genetic variation; lint cotton; lint yield; micronaire; recurrent selection
Abstract:
... We conducted this study to determine if a modified form of recurrent selection for lint percent within a cotton (Gossypium hirsutum L.) cultivar, ‘Deltapine 523,’ could improve lint yield. Three cycles of selection, beginning in 1965, were completed, with selection for lint percent being practiced first on a plant basis and then on a progeny-row basis. Plant populations of 430, 828, and 800 plants ...
DOI:
10.2135/cropsci1973.0011183X001300060033x

18. Yield, Yield Component and Fiber Property Variation of Cotton (Gossypium hirsutum L.) Within and Among Environments

Author:
William R. Meredith; R. R. Bridge
Source:
Crop science 1973 v.13 no.3 pp. 307-312
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cotton industry; cultivars; harvest date; lint cotton; micronaire; yield components; Mississippi
Abstract:
... We evaluated the performance of four cotton (Gossypium hirsutum L.) cultivars when grown under four environments at Stoneville, Mississippi. Each variety was harvested by hand at approximately weekly intervals, averaging nine harvests per environment. We obtained estimates of yield, seven yield components, and seven fiber properties for each harvest. Generally for the first two harvest weeks cotto ...
DOI:
10.2135/cropsci1973.0011183X001300030006x

19. Comparative Anatomical and Ginning Characteristics of Two Upland Cotton Cultivars

Author:
P. R. Morey; D. F. Wanjura; R. V. Baker
Source:
Agronomy journal 1974 v.66 no.6 pp. 820-822
ISSN:
0002-1962
Subject:
Gossypium hirsutum; air; bracts; cleaning; cultivars; dust; fabrics; harvesting; lint cotton; pedicel; stems; vegetables
Abstract:
... A large amount of vegetable trash including stems and bracts is collected along with burcotton during stripper harvesting. A substantial amount of this trash is then pulverized during cleaning, both at the gin and at the textile mill, and emitted into the air as microscopic dust. The objective of this study was to determine if variation in bract and pedicel structure occurred in Upland cotton (Gos ...
DOI:
10.2134/agronj1974.00021962006600060033x

20. Cottonseed Density: Associated Physical and Chemical Properties of 10 Cultivars

Author:
S. N. Bartee; D. R. Krieg
Source:
Agronomy journal 1974 v.66 no.3 pp. 433-435
ISSN:
0002-1962
Subject:
Gossypium hirsutum; air; cottonseed; cultivars; germination; lipid content; physical properties; physicochemical properties; seed weight; seedlings; vigor; High Plains (United States); Texas
Abstract:
... Recent studies have indicated that cottonseed (Gossypium hirsutum L.) germination and seedling vigor are more closely related to seed density than to any other physical properties such as size or weight. This study was undertaken to determine the physical and chemical differences among seed of different densities within a cultivar and among seed of the same density between cultivars. The primary o ...
DOI:
10.2134/agronj1974.00021962006600030028x

21. Evaluation of Cottonseed Hydration-Chilling Treatments for Improving Seedling Emergence

Author:
D. F. Wanjura; E. B. Minton
Source:
Agronomy journal 1974 v.66 no.2 pp. 217-220
ISSN:
0002-1962
Subject:
Gossypium hirsutum; cold treatment; cottonseed; cultivars; fungicides; nozzles; planting; planting seed; seed germination; seed size; seed treatment; seedling emergence; seedlings; seeds; soil temperature; sowing
Abstract:
... Stands of early season upland cotton (Gossypium hirsutum L.) are often reduced by low soil temperatures. Preplant treatments of acid-delinted seed, consisting of either single or combined applications of hydrating and chilling, were evaluated for their effect on cottonseed germination and seedling emergence at different temperatures. Problems associated with metering hydrated cottonseed with vacuu ...
DOI:
10.2134/agronj1974.00021962006600020011x

22. Agronomic and Genetic Analysis of Tarnished Plant Bug Tolerance in Cotton

Author:
William R. Meredith; M. L. Laster
Source:
Crop science 1975 v.15 no.4 pp. 535-538
ISSN:
0011-183X
Subject:
Brassica juncea; Gossypium hirsutum; Lygus lineolaris; additive gene effects; backcrossing; cultivars; epistasis; genetic analysis; insecticides; lint cotton; lint yield
Abstract:
... We investigated at Stoneville, Miss., in 1973, the effects of heavy and light infestations of tarnished plant bugs, Lygus lineolaris (Palisot de Beauvois), on six genetic populations of cotton, Gossypium hirsutum L. Mustard Brassica juncea (L.) Czern, planted in rows adjacent to cotton, was used to attract and accumulate large numbers of plant bugs. The light infestations of plant bugs were mainta ...
DOI:
10.2135/cropsci1975.0011183X001500040025x

23. Cottonseed Density: Associated Germination and Seedling Emergence Properties

Author:
D. R. Krieg; S. N. Bartee
Source:
Agronomy journal 1975 v.67 no.3 pp. 343-347
ISSN:
0002-1962
Subject:
Gossypium hirsutum; calcium; cottonseed; cultivars; genotype; germination; growth chambers; imbibition; plant establishment; potassium; seed development; seed quality; seed size; seed weight; seedling emergence; seedlings; sugars; vigor
Abstract:
... Recent studies have indicated that separation of cottonseed (Gossypium hirsutum L.) for improvement in seed quality should be based on seed density rather than seed size or weight. Seed density is closely related to embryo maturity and is more independent of genotype than are other seed properties. The primary objective of this study was to determine the effect of seed density on some of the proce ...
DOI:
10.2134/agronj1975.00021962006700030015x

24. Determination of Yield, Yield Components, and Fiber Properties as Influenced by Selective and Nonselective Samplings

Author:
William R. Meredith; H. H. Ramey; R. R. Bridge
Source:
Crop science 1975 v.15 no.3 pp. 432-435
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; lint cotton; micronaire; reflectance
Abstract:
... We compared two methods of sampling cotton (Gossypium hirsutum L.) at Stoneville and Scott, Miss. We used 14 of the cultlvars from the 1971 regional high quality test. Each entry was replicated four times at each location, with two-row plots, 16-m long and l-m wide. In the selective-sampling method, individual samplers picked 75 bolls from throughout the plot. For nonselective samples, all bolls w ...
DOI:
10.2135/cropsci1975.0011183X001500030045x

25. Gardener's Grid System and Plant Selection Efficiency in Cotton

Author:
Laval M. Verhalen; Jerry L. Baker; Ronald W. McNew
Source:
Crop science 1975 v.15 no.4 pp. 588-591
ISSN:
0011-183X
Subject:
Acheta domesticus; Festuca arundinacea; Gossypium hirsutum; acid detergent fiber; cellulose; cotton; cultivars; forage; heritability; lignin; mortality; phenotype; phenotypic variation; progeny; quantitative traits; ruminants; selection intensity; tensile strength
Abstract:
... Gardner's grid system was investigated relative to plant selection efficiency within an upland cotton (Gossypium hirsutum L.) cultivar known to be genetically variable for fiber length. A relatively small area, planted to ‘Westburn,’ was arbitrarily subdivided into three equalsized grids prior to harvest. One hundred individual plant selections were made in each grid on the basis of boll type and ...
DOI:
10.2135/cropsci1975.0011183X001500040041x

26. Cottonseed Viability After Long-Time Storage

Author:
J. McD. Stewart; E. N. Duncan
Source:
Agronomy journal 1976 v.68 no.2 pp. 243-244
ISSN:
0002-1962
Subject:
Gossypium barbadense; Gossypium hirsutum; Gossypium thurberi; ambient temperature; cold; containers; cotton; cottonseed; cultivars; germplasm; longevity; mature plants; seed germination; seeds; storage temperature; viability; water content; Arizona
Abstract:
... Longevity of seed and knowledge of the conditions required to maintain seed viability are important in the preservation of germplasm. Cottonseed (Gossypium hirsutum L., G. barbadense L., G. thurberi Tod.) storage experiments were initiated in 1937 to establish conditions required to maintain long-term viability of cotton. This is the final report of those experiments. In one experiment, seed (G. h ...
DOI:
10.2134/agronj1976.00021962006800020008x

27. Effects of Yield Components on Lint Yield of Upland Cotton with High Fiber Strength

Author:
D. C. Harrell; T. W. Culp
Source:
Crop science 1976 v.16 no.2 pp. 205-208
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; lint cotton; lint yield; seed cotton; seed size; seeds; surface area
Abstract:
... Seeds/boll, lint/seed, and bolls/m² were determined for several PD breeding lines and check cultivars of Upland cotton, Gossypium hirsutum L., representative of distinct breeding stages in the simultaneous improvement of lint yield and fiber strength. These yield components were calculated from seed cotton yield, boll size, seed size, and lint percentage measured on the stocks in one or more tests ...
DOI:
10.2135/cropsci1976.0011183X001600020010x

28. Evaluation of Verticillium Wilt Tolerance in Upland Cotton Relative to Lint Yield Reduction

Author:
A. Marani; Y. Z. Yaacobi
Source:
Crop science 1976 v.16 no.3 pp. 392-395
ISSN:
0011-183X
Subject:
Gossypium hirsutum; Verticillium dahliae; Verticillium wilt; cotton; cultivars; discoloration; fungi; lint yield; Israel
Abstract:
... Field experiments were conducted to compare methods of evaluating the tolerance of upland cotton (Gossypium hirsutum L.) to Verticillium dahliae Kleb. by visual symptoms. Good differentiation between susceptible and tolerant cultivars was obtained by observing foliar symptoms after the middle of the flowering period. Correlation studies indicated that foliar symptoms explained 31 to 45% of the var ...
DOI:
10.2135/cropsci1976.0011183X001600030019x

29. Growth Rate and Nutrient Uptake of Two Cotton Cultivars Grown Under Irrigation

Author:
J. Halevy
Source:
Agronomy journal 1976 v.68 no.5 pp. 701-705
ISSN:
0002-1962
Subject:
Gossypium hirsutum; NPK fertilizers; Rhodoxeralfs; cultivars; dry matter accumulation; flowering; growing season; irrigated farming; irrigation; leaves; lint cotton; lint yield; mature plants; nutrient uptake; nutrients; potassium; potassium fertilizers; root systems; seeds; semiarid zones; stems
Abstract:
... The production of high cotton yield is highly dependent on adequate growth rate and nutrient uptake about which relatively little information is available under semiarid conditions. Growth rate and N, P, K uptake of two cotton (Gossypium hirsutum L.) cultivars, ‘Acala 1517-C’ and ‘Acala 4-42,’ which differ in their response to K fertilizer, were investigated in an irrigated field (soil type - Typi ...
DOI:
10.2134/agronj1976.00021962006800050002x

30. Influence of Indeterminate Growth Habit on Yield and Irrigation Water-use Efficiency in Upland Cotton

Author:
J. E. Quisenberry; Bruce Roark
Source:
Crop science 1976 v.16 no.6 pp. 762-765
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; determinate growth; early development; indeterminate growth; irrigation rates; lint cotton; lint yield; soil water; water content; water use efficiency; Texas
Abstract:
... Based on their growth habit, 12 cultivars of upland cotton (Gossypium hirsutum L.) were placed in four groups designated as I) High Plains-determinate, 2) High Plains.moderately determinate, 3) High Plains-indeterminate, and 4) non High Plains-indeterminate. These cultivar groups were grown at three moisture levels at Lubbock, Texas, and evaluated for their degree of indeterminate growth habit, ea ...
DOI:
10.2135/cropsci1976.0011183X001600060005x

31. Nondestructive Method for the Determination of Boll Surface Area in Cotton

Author:
B. L. McMichael; C. D. Elmore; G. W. Cathey
Source:
Agronomy journal 1976 v.68 no.2 pp. 426-427
ISSN:
0002-1962
Subject:
Gossypium hirsutum; bolls; cotton; cultivars; equations; greenhouses; nondestructive methods; regression analysis; surface area; transpiration
Abstract:
... Fruit (boll) transpiration rates in cotton (Gossypium hirsutum L.) may be important in boll growth and movement of materials into developing bolls. Therefore to facilitate comparisons of transpiration rates of different age (and size) bolls, a nondestructive method for the estimation of cotton boll surface areas was evaluated using two commercial cultivars grown in the greenhouse. Boll length was ...
DOI:
10.2134/agronj1976.00021962006800020058x

32. Vegetative-fruiting Development and N Concentrations of a Dwarf Determinate Cotton Cultivar

Author:
D. F. Wanjura; H. D. Sunderman
Source:
Agronomy journal 1976 v.68 no.5 pp. 744-748
ISSN:
0002-1962
Subject:
Gossypium hirsutum; Paleustalfs; cotton; cultivars; dry matter accumulation; fertilizer rates; fruiting; loam soils; nitrogen; nitrogen content; row spacing; simulation models
Abstract:
... The lack of information needed to verify a nitrogen submodel for a cotton (Gossypium hirsutum L.) plant simulation model suggested the need to measure the effect of N level on a broad spectrum of vegetative and fruiting development characteristics in a single field study. The effect on plant N accumulation and growth of O, 90, and 180 kg N/ha applied to Amarillo loam soil, Aridic Paleustalfs, was ...
DOI:
10.2134/agronj1976.00021962006800050015x

33. Boll Weevil Resistance, Agronomic Characteristics, and Fiber Quality in Progenies of a Cotton Cultivar Crossed with 20 Primitive Stocks

Author:
Jack C. McCarty; Johnie N. Jenkins; W. L. Parrott
Source:
Crop science 1977 v.17 no.1 pp. 5-7
ISSN:
0011-183X
Subject:
Anthonomus grandis grandis; Gossypium hirsutum; cotton; cultivars; fiber quality; oviposition
Abstract:
... Primitive race stocks of cotton (Gossypium hirsutum L.), were crossed and backcrossed twice to the recurrent cultivar ‘Deltapine 16.’ These progenies were evaluated for boll weevil (Anthonomus grandis Boheman), oviposition suppression in 1973, 1974 or both, and for agronomic characteristics and fiber quality in 1973. Lines were grown in replicated field tests, and oviposition was measured weekly d ...
DOI:
10.2135/cropsci1977.0011183X001700010002x

34. Cotton Population Dynamics: Influence of the Within-the-Row Spacing and Emergence Time

Author:
D. F. Wanjura; J. D. Bilbro
Source:
Agronomy journal 1977 v.69 no.2 pp. 312-318
ISSN:
0002-1962
Subject:
Gossypium hirsutum; bolls; cotton; cultivars; developmental stages; plant height; population dynamics; sample size; stem nodes
Abstract:
... Dynamic and stochastic properties of cotton (Gossypium hirsutum L.) plant populations increase the difficulty of production management. The influence of four within-the-row plant spacings on beds spaced at 102 an (5, 20, and 40 cm, and random 7.5 to 10 cm) and three times of emergence (5, 7, and 9 days in 1973; 6, 8, and 10 days in 1974) on means and coefficient(s) of variability (CV) of plant hei ...
DOI:
10.2134/agronj1977.00021962006900020027x

35. Seed Setting Efficiency in Eight Cultivars of Upland Cotton

Author:
John H. Turner; J. McD. Stewart; P. E. Hoskinson; H. H. Ramey
Source:
Crop science 1977 v.17 no.5 pp. 769-772
ISSN:
0011-183X
Subject:
Gossypium hirsutum; bolls; cultivars; ovules; seed set; seeds; Tennessee
Abstract:
... Seed setting efficiency was determined for six cultivars of Upland cotton (Gossypium hirsutum L.) in 1974 and eight cultivars in 1975 at Jackson, Tenn. The number of ovules per ovary was determined by examining blooms at weekly periods. Simultaneously tagged blooms provided identifiable bolls from each bloom period to determine the number of seeds per boll. Seed setting efficiency (S.S.E.) was cal ...
DOI:
10.2135/cropsci1977.0011183X001700050023x

36. Breeding Potentials of Noncultivated Cottons. IV. Location and Parental Effects on Agronomic Characters and Fiber Properties in Hybrids

Author:
F. D. Wilson; R. L. Wilson
Source:
Crop science 1978 v.18 no.3 pp. 467-471
ISSN:
0011-183X
Subject:
Gossypium hirsutum; Pectinophora gossypiella; agronomic traits; bolls; cotton; cultivars; fiber quality; genetic variation; heterosis; hybrids; inheritance (genetics); insecticides; Arizona
Abstract:
... We studied the inheritance of six agronomic characters and five fiber properties in Ft hybrids between two cultivars and eight primitive race stocks of cotton, Gossypium hirsutum L., in 1975 and between the same two cultivars and four other race stocks in 1976. Plants were grown at Phoenix, Ariz., where insecticides were applied as needed for control of pink bollworm, Pectinophora gossypiella (Sau ...
DOI:
10.2135/cropsci1978.0011183X001800030028x

37. Cotton Cultivar and Boll Maturity Effects on Aflatoxin Production

Author:
Stella Sun; G. M. Jividen; W. H. Wessling; Mary Lou Ervin
Source:
Crop science 1978 v.18 no.5 pp. 724-726
ISSN:
0011-183X
Subject:
Aspergillus flavus; Gossypium hirsutum; Pectinophora gossypiella; aflatoxins; cotton; cultivars; fungi; oxygen
Abstract:
... Commercial cotton cultivars (Gossypium hirsutum L.) were evaluated for aflatoxin production in 1974, 1975, and 1976 crop seasons. Bolls were inoculated at different levels of maturity with Aspergillus flavus Link. In 1974, the fungus produced aflatoxin in bolls of all 11 cultivars infected, but ‘Acala SJ-1’ and ‘Acala 1517’ were better subtrates for the production of aflatoxin than ‘Delcott 277’, ...
DOI:
10.2135/cropsci1978.0011183X001800050007x

38. Cotton Seedling Metabolism as Influenced by Germination Temperature, Cultivar, and Seed Physical Properties

Author:
D. R. Krieg; J. D. Carroll
Source:
Agronomy journal 1978 v.70 no.1 pp. 21-25
ISSN:
0002-1962
Subject:
Gossypium hirsutum; biochemical pathways; chemical analysis; cotton; cottonseed; cotyledons; cultivars; genetic variation; lipids; metabolism; planting; seed germination; seedling growth; seedlings; temperature
Abstract:
... Growth rates of cotton (Gossypium hirsutum L.) seedlings are greatly reduced at minimal germination temperatures. Increased variability in the seedling growth rates are more apparent at low temperatures, and delayed emergence or seedling death result in more erratic and nonuniform stands. The pupose of this study was to determine if a specific area of metabolism might be controlling seedling growt ...
DOI:
10.2134/agronj1978.00021962007000010006x

39. Inheritance of an Induced Mutation for Bacterial Blight Resistance in Cotton

Author:
L. A. Brinkerhoff; Laval M. Verhalen; Reza Mamaghani; William M. Johnson
Source:
Crop science 1978 v.18 no.5 pp. 901-903
ISSN:
0011-183X
Subject:
Gossypium hirsutum; Xanthomonas campestris pv. malvacearum; blight; cotton; cultivars; dominant genes; induced mutation; inheritance (genetics); mutants; neutrons; resistance genes
Abstract:
... An induced mutation for an intermediate level of resistance to bacterial blight [Xanthomonas malvacearum (E. F. Sm.) Dows.] in cotton (Gossypium hirsutum L.) was obtained after irradiating seed of a blight-susceptible cultivar, ‘Westburn 70’, with fission neutrons. Inheritance studies indicated that the resistance was due to a single dominant gene. The mutant was not identical to B₃, B₄, B₅, B₇, o ...
DOI:
10.2135/cropsci1978.0011183X001800050059x

40. Role of Minimum and Maximum Environmental Temperature on Maturation Period of the Cotton Boll

Author:
A. Yfoulis; A. Fasoulas
Source:
Agronomy journal 1978 v.70 no.3 pp. 421-425
ISSN:
0002-1962
Subject:
Gossypium hirsutum; adverse effects; ambient temperature; breeding; cotton; cultivars; early development; field experimentation; night temperature; temperate zones; Greece
Abstract:
... Temperature is critical in boll formation, and in temperate climates earliness is one of the main breeding objectives. The effect of night and day temperature on the boll maturation period of five genetically divergent cultivars of cotton (Gossypium hirsutum L.) was studied in a 3-year field experiment at Sindos, Greece. Under a 24-hour cycle (mean temperature 18 to 32 C) night temperature shorten ...
DOI:
10.2134/agronj1978.00021962007000030014x

41. Seed Damage by Pink Bollworm to Race Stocks, Cultivars, and Hybrids of Cotton

Author:
F. D. Wilson; R. L. Wilson
Source:
Crop science 1978 v.18 no.3 pp. 465-467
ISSN:
0011-183X
Subject:
Gossypium hirsutum; Pectinophora gossypiella; antibiosis; cotton; cultivars; diet; genes; harvest date; hybrids; seed damage; Texas
Abstract:
... Noncultivated race stocks of cotton (Gossypium hirsutum L.) previously selected via diet bioassays for antibiosis to pink bollworm (Pectinophora gossypiella Saunders), were field-tested for resistance along with cultivars and race stock ✕ cultivar F₁ hybrids. No race stock or hybrid was consistently more resistant than the cultivars in 1975. In 1976, one race stock, Texas 40, and two hybrids showe ...
DOI:
10.2135/cropsci1978.0011183X001800030027x

42. Cotton Cultivar Response to Propazine and Atrazine

Author:
J. R. Abernathy; J. W. Keeling; L. L. Ray
Source:
Agronomy journal 1979 v.71 no.6 pp. 929-931
ISSN:
0002-1962
Subject:
Gossypium hirsutum; Paleustalfs; agronomy; atrazine; cotton; cultivars; phytotoxicity; propazine; sandy clay loam soils
Abstract:
... Forty-eight cotton (Gossypium hirsutum L.) cultivars were evaluated in field studies over a 2-year period to determine tolerance to phytotoxic soil residue levels of propazine [2-chloro-4,6-bis (isopropylamine)-s-triazine] and atrazine [Z-chloro-4-(ethylamiamino)-6-isopropylami)-s-triazine] present after use in rotational grain crops. After planting, preemergence, broadcast applications of atrazin ...
DOI:
10.2134/agronj1979.00021962007100060009x

43. Effects of Premature Defoliation and Plant Kill on Germination of Cottonseed

Author:
Earl B. Minton; D. F. Wanjura; J. D. Bilbro
Source:
Agronomy journal 1979 v.71 no.4 pp. 659-661
ISSN:
0002-1962
Subject:
Gossypium hirsutum; adverse effects; autumn; cottonseed; cultivars; defoliation; fruiting; germination; greenhouses; irrigation; leaves; relative humidity; soil; temperature
Abstract:
... Performance data on cottonseed (Gossypium hirsutum L.) harvested from plants following premature defoliation and premature plant kill are limited. The objective of this study was to determine the effects of premature defoliation following adverse weather, hand defoliation, and premature plant kill (plants cut off at the soil line and dried rapidly in the greenhouse) at different dates in the fall ...
DOI:
10.2134/agronj1979.00021962007100040033x

44. Field Studies and Model Simulation of the First Square Event in Cotton

Author:
D. F. Wanjura; J. W. Jones; J. D. Hesketh
Source:
Agronomy journal 1979 v.71 no.2 pp. 261-266
ISSN:
0002-1962
Subject:
Gossypium hirsutum; air temperature; binomial distribution; cotton; cultivars; germination; population density; seedlings; simulation models; variance
Abstract:
... The ability of cotton (Gossypium hirsutum L) production models to accurately predict the first-square event is essential for estimating square and boll production rates. A first-square model was formulated which requires three plant character inputs: 1) mainstem node number limits for first-square positions, 2) characterization of fist-square distribution between the mainstem node limits, and 3) a ...
DOI:
10.2134/agronj1979.00021962007100020011x

45. Influence of Five Gossypium Species Cytoplasms on Yield, Yield Components, Fiber Properties, and Insect Resistance in Upland Cotton

Author:
W. R. Meredith; Vesta Meyer; B. W. Hanny; J. C. Bailey
Source:
Crop science 1979 v.19 no.5 pp. 647-650
ISSN:
0011-183X
Subject:
Empoasca; Gossypium hirsutum; Heliothis virescens; Lygus lineolaris; Trialeurodes; backcrossing; cotton; cultivars; cytoplasm; insect resistance; insects; pests
Abstract:
... The influence of five exotic cotton (Gossypium spp.) cytoplasms on yield, yield components, fiber properties, and insect populations was determined at Stoneville, Miss. The five cytoplasms were G. herbaceum L., G. arboreum L., G. anomalum Wawra ex Wawra & Peyr., G. barbadense L., and G. tomentosum Nutt. ex Seem. The five cytoplasms were combined by repeated backcrossing into the following upland c ...
DOI:
10.2135/cropsci1979.0011183X001900050025x

46. Nitrate Concentration of Cotton Petioles as Influenced by Cultivar, Row Spacing, and N Application Rate

Author:
H. D. Sunderman; A. B. Onken; L. R. Hossner
Source:
Agronomy journal 1979 v.71 no.5 pp. 731-737
ISSN:
0002-1962
Subject:
Alfisols; Gossypium hirsutum; Mollisols; agronomy; brownfields; cultivars; diagnostic techniques; fertilizer rates; irrigation; lint cotton; lint yield; nitrate nitrogen; nitrates; nitrogen fertilizers; petioles; plant analysis; plant tissues; soil fertility; tissue analysis; Texas
Abstract:
... Soil and plant analyses are diagnostic tools with which the adequacy of soil fertility programs can be evaluated. Plant tissue analysis provides information on what the plant is actually obtaining from the soil and provides a basis for refining the soil fertility program and thus could become an important management tool in crop production. However, as with any analysis, results are of limited val ...
DOI:
10.2134/agronj1979.00021962007100050008x

47. Pima and Upland Cotton Response to Irrigation Management

Author:
D. L. Kittock
Source:
Agronomy journal 1979 v.71 no.4 pp. 617-619
ISSN:
0002-1962
Subject:
Gossypium barbadense; Gossypium hirsutum; agronomy; cultivars; highlands; irrigation scheduling; lint cotton; lint yield; water stress
Abstract:
... American Pima cotton (Gossypium barbadense L.) traditionally is stressed more for moisture before irrigating than is Upland cotton (G. hirsutum L.). With improved cultivars of each species, many growers now irrigate both in a similar manner. The purpose of this research was to determine if current cultivars of the two species respond differently to irrigation. Upland and Pima cultivars were compar ...
DOI:
10.2134/agronj1979.00021962007100040023x

48. Plant Spacings with Irrigated Cotton

Author:
C. Wayne Smith; B. A. Waddle; H. H. Ramey
Source:
Agronomy journal 1979 v.71 no.5 pp. 858-860
ISSN:
0002-1962
Subject:
Alfisols; Gossypium hirsutum; agronomy; arid lands; cultivars; early development; experimental design; furrow irrigation; genotype; lint cotton; lint yield; plant response; silt loam soils; stand density; Arkansas
Abstract:
... The majority of research concerning stand density of cotton (Gossypium hirsutum L.) was conducted several years ago under dryland conditions and deals primarily with lint yield and earliness of a single genotype. Therefore an experiment to compare three cultivars at three stand densities was initiated in 1975. ‘Quapaw’, ‘Rex 713’, and ‘Deltapine 16’ were grown in stand densities of one plant per 6 ...
DOI:
10.2134/agronj1979.00021962007100050035x

49. Pyro-Chemiluminescent Differentiation of Oxidized and Reduced N Forms Evolved from Plant Foliage

Author:
R. T. Weiland; C. A. Stutte
Source:
Crop science 1979 v.19 no.4 pp. 545-547
ISSN:
0011-183X
Subject:
Amaranthus palmeri; Glycine max; Gossypium hirsutum; canopy; chemiluminescence; cotton; cultivars; leaves; nitrogen; oxidation; pyrolysis; soybeans; transpiration; water solubility; water stress; weeds
Abstract:
... Evaluations were made to differentiate the forms of water soluble, non-elemental nitrogen lost with the trans. piration water vapors from plant foliage. Chemiluminescent detection of chemically bound N, with O₂ present as a reactant-carrier gas, and then absent and replaced with N₂ during the pyrolysis of transpiration samples, distinguished the oxidized from the reduced N forms in the transpirate ...
DOI:
10.2135/cropsci1979.0011183X011200190027x

50. Relationship of Week of Flowering and Parameters of Boll Yield in Cotton

Author:
J. H. Turner; S. Worley; H. H. Ramey; P. E. Hoskinson; J. M. Stewart
Source:
Agronomy journal 1979 v.71 no.2 pp. 248-251
ISSN:
0002-1962
Subject:
Gossypium hirsutum; agronomy; cotton; cultivars; seed yield; surface area
Abstract:
... Cotton (Gossypium hirsutum L.) experiments generally are reported in yield per unit area of land. This yield is a product of number of bolls per unit area and yield per boll. Estimates of yield per boll include an element of sampling. Our purpose was to relate week of flowering to the variability of boll yield components. Boll samples derived from 5 consecutive weeks (periods) of blooming in six d ...
DOI:
10.2134/agronj1979.00021962007100020008x

51. Tolerance of Cotton to the Herbicide Glyphosate

Author:
T. N. Jordan; R. R. Bridge
Source:
Agronomy journal 1979 v.71 no.6 pp. 927-928
ISSN:
0002-1962
Subject:
Gossypium hirsutum; agronomy; cultivars; glyphosate; glyphosate resistance; perennial weeds; seed cotton; toxicity; weed control
Abstract:
... An increasing group of weed pests in U.S. cotton (Gossypium hirsutum L.) are the perennial grasses which can be controlled with glyphosate [N-phosphonomethyl) glycine], but cotton is also sensitive to this herbicide. Field studies were initiated to determine if certain cotton genotypes could be selected with sufficient tolerance to glyphosate to allow its use in a cotton-weed control program. In 1 ...
DOI:
10.2134/agronj1979.00021962007100060008x

52. Tolerance of Glabrous and Pubescent Cottons to Tarnished Plant Bug

Author:
W. R. Meredith; M. F. Schuster
Source:
Crop science 1979 v.19 no.4 pp. 484-488
ISSN:
0011-183X
Subject:
Brassica juncea; Gossypium hirsutum; Lygus lineolaris; cultivars; flowers; germplasm; greenhouses; lint cotton; terpenoids
Abstract:
... Lint yields of glabrous cottons (Gossypium hirsutum L.) are frequently lower than those of pubescent cottons. Since glabrous cottons might be more sensitive to tarnished plant bugs [Lygus lineolaris (Palisot de Beauvois)] than are pubescent cottons, we investigated the association between plant bugs and reproductive development of glabrous and pubescent cottons. Greenhouse evaluations were conduct ...
DOI:
10.2135/cropsci1979.0011183X001900040014x

53. Effect of 2,4-D on Cotton Yield, Floral Nectar, Seed Germination, and Honeybee Visits

Author:
Joseph O. Moffett; Lee S. Stith; Howard L. Morton; Charles W. Shipman
Source:
Crop science 1980 v.20 no.6 pp. 747-750
ISSN:
0011-183X
Subject:
2,4-D; Apis mellifera; Gossypium hirsutum; acetic acid; cotton; cottonseed; cultivars; flowers; honey; honey bees; hybrids; males; nectar; nectar secretion; seed germination; sugars; Arizona
Abstract:
... In Arizona honey bees, Apis mellifera L., frequently visit cotton flowers, Gossypium hirsutum L., in sufficient numbers to adequately pollinate the male sterile flowers and produce hybrid cotton seed. Yet in some other states and at times in Arizona, honey bee visits to cotton flowers are low or erratic. Since hybrid cotton seed may be in demand in the near future, this study was made to determine ...
DOI:
10.2135/cropsci1980.0011183X002000060017x

54. Emergence Force by Cotton Seedlings

Author:
C. J. Gerard
Source:
Agronomy journal 1980 v.72 no.3 pp. 473-476
ISSN:
0002-1962
Subject:
Gossypium hirsutum; agronomy; cotton; cultivars; hypocotyls; seedling emergence; seedlings; soil crusts; soil water; temperature; transducers (equipment)
Abstract:
... Economic returns from crops require establishment of a good plant stand. Soil crusting reduces seedling emergence and stands of many crops throughout the world. One of the most important crops adversely affected by crusting is cotton (Gossypium hirsutum L.). The force exerted by germinating plants such as cotton often determines the seedling's abdity to rupture and emerge from under the soil crust ...
DOI:
10.2134/agronj1980.00021962007200030016x

55. Evaluation of Foreign and Domestic Cotton Cultivars and Strains for Boll Weevil Resistance

Author:
Lavone Lambert; Johnie N. Jenkins; William L. Parrott; Jack C. McCarty
Source:
Crop science 1980 v.20 no.6 pp. 804-806
ISSN:
0011-183X
Subject:
Anthonomus grandis grandis; Gossypium hirsutum; aldehydes; cotton; cultivars; flowers; oviposition; terpenoids
Abstract:
... Forty-four domestic and introduced cotton (Gossypium hirsutum L.) cultivars and strains were evaluated in the laboratory for resistance to the boll weevil, Anthonomus grandis Boh. Opposition by the boll weevil was significantly lower in squares (flower buds) from eight cottons (‘Lasani 11,’ ‘AC 134,’ ‘Albar 627,’ G077-2, ‘BP 52/NC 63,’ TX-LY-18-72, DES-HJERB 16, and DES-ARB 16) than in squares fro ...
DOI:
10.2135/cropsci1980.0011183X002000060032x

56. Timing Late-season Fruiting Termination of Cotton with Potassium 3,4-Dichloroisothiazole-5-Carboxylate

Author:
D. L. Kittock; H. Fred Arle; T. J. Henneberry; L. A. Bariola; V. T. Walhood
Source:
Crop science 1980 v.20 no.3 pp. 330-333
ISSN:
0011-183X
Subject:
cotton; harvest date; Pectinophora gossypiella; application timing; cultivars; flowering; Gossypium hirsutum; plant growth substances; Gossypium barbadense; fruit set; potassium; immatures; bolls; insect control; Arizona; California
Abstract:
... A plant growth regulator, Pennwalt TD-1123³ (3,4- dichlorolsothiazole-5-carboxylic acid) was evaluated as a chemical termination agent for reducing fruit set on cotton (Gossyplum spp.) in 32 tests in Arizona and California from 1974 through 1977. A reduction in immature bolls through chemical termination causes a similar reduction in diapausing pink bollworms [Pectinophora gossypiella (Saunders)]. ...
Handle:
10113/54623
DOI:
10.2135/cropsci1980.0011183X002000030010x

57. Breeding Potentials of Noncultivated Cottons. V. Productivity of Cultivars, Race Stocks, and F1 Hybrids among Them in Long- and Short-Day Environments

Author:
F. D. Wilson; B. W. George
Source:
Crop science 1981 v.21 no.3 pp. 410-414
ISSN:
0011-183X
Subject:
cotton; cultivars; heterosis; hybrids; environment; races; winter; Gossypium hirsutum; parents; agronomic traits; genotype-environment interaction; additive gene effects; summer; genetic variation; bolls; lint yield; Puerto Rico
Abstract:
... Twelve primitive race stocks of cotton (Gossypiura hirsutum L.), four Upland cultivars, and 24 race stock ✕ cultivar F₁ hybrids were grown in three replicated tests in the summer at Phoenix, Ariz. and in the winter at Isabela, Puerto Rico. Objectives of this research were to compare productivity, to study hybrid expression of agronomic properties, and to determine the effects of cultivar ✕ race st ...
Handle:
10113/54604
DOI:
10.2135/cropsci1981.0011183X002100030014x

58. Competition Between Adjacent Fruiting Forms in Cotton

Author:
T. A. Kerby; D. R. Buxton
Source:
Agronomy journal 1981 v.73 no.5 pp. 867-871
ISSN:
0002-1962
Subject:
Gila; Gossypium hirsutum; Torrifluvents; abscission; agronomy; cotton; cultivars; flowering; irrigation; leaves; okra; plant density
Abstract:
... Cotton plants (Gossypium hirsutum L.) produce more fruiting forms that can be supplied assimilates, and competition and abortion occurs. The relationship is accentuated with narrow-row, high population culture. This study was conducted to determine the extent that fruiting forms compete and influence abscission of adjacent fruiting forms. The study was also designed to determine if plant leaf type ...
DOI:
10.2134/agronj1981.00021962007300050028x

59. Fruiting of Upland and Pima Cotton with Different Planting Dates

Author:
D. L. Kittock; T. J. Henneberry; L. A. Bariola
Source:
Agronomy journal 1981 v.73 no.4 pp. 711-715
ISSN:
0002-1962
Subject:
harvest date; planting date; cultivars; interspecific variation; flowering; insect pests; lint cotton; Gossypium hirsutum; early development; Gossypium barbadense; Torrifluvents; plant response; seedling emergence; loam soils; irrigation scheduling; fruiting; lint yield; crops; Arizona
Abstract:
... Interest in short-season cotton production is increasing because of late-season insect problems and, in the West, because of the expense of irrigation. Diverse cultivars of Upland cotton (Gossypium hirsutum L.) and American Pima cotton (G. barbadense L.) were compared at Phoenix, Arizona to evaluate short-season production using several planting dates in 3 years and three dates of final irrigation ...
Handle:
10113/54615
DOI:
10.2134/agronj1981.00021962007300040035x

60. Influence of Phenotype, Season, and Time-of-day on Nectar Production in Cotton

Author:
Gordon D. Waller; F. D. Wilson; Joseph H. Martin
Source:
Crop science 1981 v.21 no.4 pp. 507-511
ISSN:
0011-183X
Subject:
Apis mellifera; Gossypium barbadense; Gossypium hirsutum; breeding stock; cotton; crop production; cultivars; diurnal variation; flowering; flowers; honey bees; nectar; nectar secretion; phenotype; seasonal variation; sugars
Abstract:
... Twenty-five cultivars and breeding stocks of Gossypium hirsutum L. and two cultivars of G. barbadense L. were studied for rates of flowering and diurnal and seasonal patterns Of floral nectar production. Nectar secretion began ca. 0800 hours and production increased linearly until the flowers closed at ca. 1700 hours. In mid-season, G. hirsutum produced 25 µ1 nectar/flower for at least 5 weeks. Ne ...
Handle:
10113/54596
DOI:
10.2135/cropsci1981.0011183X002100040007x

61. Potassium Response of Cotton on Some Inceptisols and Oxisols of Nothern Nigeria

Author:
G. Lombin; S. Mustafa
Source:
Agronomy journal 1981 v.73 no.4 pp. 724-729
ISSN:
0002-1962
Subject:
Gossypium hirsutum; Haplustox; Inceptisols; calcium; chemical analysis; cotton; crops; cultivars; exchangeable calcium; exchangeable magnesium; exchangeable potassium; fallow; fertilizer application; leaves; magnesium; nutrient requirements; potassium; potassium fertilizers; regression analysis; sandstone; savannas; topsoil; Nigeria
Abstract:
... Consequent upon the shift from the traditional bush fallowing system of agriculture to more intensive continuous cultivation, plant-available soil K which was hitherto considered adequate in the West African savannah zone is now becoming a major yield limiting factor. Information is urgently needed on the K fertilization requirements of the promising crop varieties and on the suitable diagnostic p ...
DOI:
10.2134/agronj1981.00021962007300040038x

62. Predicting Cotton Crop Boll Development

Author:
D. F. Wanjura; O. H. Newton
Source:
Agronomy journal 1981 v.73 no.3 pp. 476-481
ISSN:
0002-1962
Subject:
Gossypium hirsutum; air temperature; bolls; cultivars; lint cotton; prediction; High Plains (United States); Texas
Abstract:
... Cotton (Gossypium hirsutum L.) lint development on the Texas High Plains frequently spans periods of low temperature that reduce yield and quality. We conducted a study in 1977 to 1979 at Lubbock, Texas, to develop a procedure for estimating the level of crop lint maturity at any time after boll setting begins. The procedure includes a model that uses the initiation date for each 1/10 increment of ...
DOI:
10.2134/agronj1981.00021962007300030020x

63. Cotton Cultivar Response to Plant Populations in a Short-Season, Narrow-Row Cultural System

Author:
Khalid Bin Mohamad; W. P. Sappenfield; J. M. Poehlman
Source:
Agronomy journal 1982 v.74 no.4 pp. 619-625
ISSN:
0002-1962
Subject:
Argiudolls; Gossypium hirsutum; agronomic traits; bolls; cultivars; fiber quality; fruiting; genotype; harvesting; lint cotton; lint yield; pests; plant density; planting date; river deltas; seed size; silt loam soils
Abstract:
... The need for reducing time of crop exposure to pests has given emphasis to cultural changes in row widths and plant densities for upland cotton, Gossypium hirsutum L., and this has challenged available cultivars to avoid losses in yield and fiber quality. Four genotypes, HYC72-234/320 (very early), ‘Auburn M’ (early), MO63-277 BR (medium early), and ‘Stoneville 213’ (medium early to full-season) w ...
DOI:
10.2134/agronj1982.00021962007400040008x

64. Double Cropping Cotton and Wheat

Author:
C. Wayne Smith; J. J. Varvil
Source:
Agronomy journal 1982 v.74 no.5 pp. 862-865
ISSN:
0002-1962
Subject:
Gossypium hirsutum; Haplustalfs; Triticum aestivum; continuous cropping; cultivars; double cropping; experimental design; fruiting; genotype; irrigation; land use; lint cotton; lint yield; planting; seedbeds; silt loam soils; stubble; weather; weeds; wheat; winter; Southeastern United States
Abstract:
... Several “fast fruiting” or “early” genotypes of cotton (Gossypium hirsutum L.), have been developed over the past several years to reduce losses associated with adverse autumn weather, allow later planting to escape early season disease problems, reduce insect and weed pests associated problems, and to reduce the inputs required to make and protect an acceptable yield. These earlier maturing types ...
DOI:
10.2134/agronj1982.00021962007400050022x

65. Comparative Performance of Obsolete and Current Cotton Cultivars

Author:
Robert R. Bridge; W. R. Meredith
Source:
Crop science 1983 v.23 no.5 pp. 949-952
ISSN:
0011-183X
Subject:
Gossypium hirsutum; Hapludalfs; acreage; cultivars; genetic improvement; genetic traits; lint cotton; lint yield; new variety; regression analysis; sandy loam soils; Mississippi
Abstract:
... The purpose of this study was to evaluate current and obsolete cotton (Gossypium hirsutum L.) cultivars and determine the rate of gain in cotton yields in Mississippi. We evaluated 17 cultivars on a Bosket sandy loam (fine-loamy, mixed, thermic, Mollic Hapludalf) over a 2-year period (1978 and 1979) to determine what genetic improvements the new cultivars had over the older ones. The study was com ...
DOI:
10.2135/cropsci1983.0011183X002300050032x

66. Cotton Cultivar Response to Mepiquat Chloride

Author:
A. C. York
Source:
Agronomy journal 1983 v.75 no.4 pp. 663-667
ISSN:
0002-1962
Subject:
Gossypium hirsutum; bolls; chlorides; cultivars; lint cotton; lint yield; mepiquat; micronaire; pesticides; plant height; seed weight
Abstract:
... The effects of mepiquat chloride (1,1-dimethylpiperidinium chloride) on cotton (Gossypium hirsutum L.) growth and yield have been widely studied but few studies have investigated cultivar response to this plant growth regulator. Since the response to a pesticide or a plant growth regulator may vary among cultivars, a knowledge of cultivar response to that chemical is an important consideration whe ...
DOI:
10.2134/agronj1983.00021962007500040020x

67. Effect of Pink Bollworm on Agronomic Properties of Resistant and Susceptible Cotton

Author:
F. D. Wilson; B. W. George
Source:
Crop science 1983 v.23 no.4 pp. 695-698
ISSN:
0011-183X
Subject:
Gossypium barbadense; Gossypium hirsutum; Pectinophora gossypiella; agronomic traits; bolls; breeding stock; cultivars; growing season; harvesting; highlands; insects; pest resistance; plant damage; seed cotton; seeds
Abstract:
... Little is known about the differential effects of the attack of pink boilworm (PBW), Pectinophora gossypiella (Saunders), on agronomic properties of resistant and susceptible cottons, Gossypium spp. The major objective of this study was to determine and compare those effects in a susceptible cultivar and a resistant breeding stock of upland cotton, G. hirsutum L., and a susceptible cultivar of Pim ...
Handle:
10113/54679
DOI:
10.2135/cropsci1983.0011183X002300040022x

68. New Sources of Resistance to Root-Knot Nematodes among Primitive Cottons

Author:
Raymond L. Shepherd
Source:
Crop science 1983 v.23 no.5 pp. 999-1002
ISSN:
0011-183X
Subject:
Gossypium hirsutum; Meloidogyne incognita; cultivars; eggs; germplasm; highlands; plant breeding; races; root-knot nematodes
Abstract:
... Presently, Auburn 634 RNR and related cottons are the only germplasm in upland cotton (Gossypium hirsutum L.) with extremely high resistance to root-knot nematodes (RKN) [Meloidogyne incognita (Kofoid & White) Chitwood]. Genetic vulnerability could result from using only this one source for breeding resistant cultivars. The purpose of this study was to evaluate primitive race stocks of G. hirsutum ...
DOI:
10.2135/cropsci1983.0011183X002300050044x

69. Comparative Growth of Obsolete and Modern Cotton Cultivars. III. Relationship of Yield to Observed Growth Characteristics

Author:
Randy Wells; William R. Meredith
Source:
Crop science 1984 v.24 no.5 pp. 868-872
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; lint cotton; lint yield; micronaire
Abstract:
... Yield differences among cotton (Gossypium hirsutum L.) lines have been used as the measure of cultivar suitability in this century. The result has been a steady increase in yields as progressively newer cultivars have been developed, while little or no information pertaining to the alterations in growth responsible for the enhanced performance has been collected. To assess the association of growt ...
DOI:
10.2135/cropsci1984.0011183X002400050010x

70. Influence of Leaf Morphology on Lint Yield of Cotton—Enhancement by the Sub Okra Trait

Author:
William R. Meredith
Source:
Crop science 1984 v.24 no.5 pp. 855-857
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cotton; cultivars; homozygosity; leaf morphology; leaves; lint yield; mutants; okra; river deltas
Abstract:
... Sub okra leaf (L¹⁴) is a trait in cotton (Gossypium hirsutum L.) which displays greater indentation of sinus and more lobing than does normal leaf (l). This study was initiated because previous research on the influence of this trait for lint yield or its components had been reported. In 1981, 48 populations descending from 24 crosses were initiated to compare the influence of this trait on yield ...
DOI:
10.2135/cropsci1984.0011183X002400050007x

71. Pink bollworm (Lepidoptera: Gelechiidae): oviposition and larval success on resistant and susceptible cotton plants

Author:
Wilson, F.D.; George, B.W.; Szaro, J.L.
Source:
Journal of economic entomology 1984 v.77 no.3 pp. 709-714
ISSN:
0022-0493
Subject:
Gossypium hirsutum; Pectinophora gossypiella; antibiosis; bolls; branches; breeding stock; cotton; cultivars; eggs; field experimentation; flowers; greenhouse experimentation; greenhouses; insecticides; larvae; larval development; leaves; oviposition; pest resistance
Abstract:
... Oviposition and larval development of pink boll worm (PBW), Pectinophora Gossypiella (Saunders), on a breeding stock of upland cotton, Gossypium hirsutum L., designated AET-5, was compared to that on a commercial cultivar, 'Deltapine 61' (DPL-61), in greenhouse no-choice and free-choice tests, and in field free-choice tests. The field resistance of AET-5 was caused mainly by lower PBW oviposition. ...
Handle:
10113/54663
DOI:
10.1093/jee/77.3.709

72. Registration of Acala 1517-77BR upland cotton

Author:
Roberts, C.L.; Malm, N.R.; Davis, D.D.; Barnes, C.E.
Source:
Crop science 1984 v.24 no.2 pp. 382
ISSN:
0011-183X
Subject:
cultivars; Gossypium hirsutum
DOI:
10.2135/cropsci1984.0011183X002400020046x

73. Registration of Acala 1517-SR1 upland cotton

Author:
Malm, N.R.; Barnes, C.E.; Davis, D.D.; Roberts, C.L.
Source:
Crop science 1984 v.24 no.2 pp. 382-383
ISSN:
1435-0653
Subject:
cultivars; Gossypium hirsutum
DOI:
10.2135/cropsci1984.0011183X002400020047x

74. Standard and Cool Germination Tests Compared With Field Emergence in Upland Cotton

Author:
C. Wayne Smith; J. J. Varvil
Source:
Agronomy journal 1984 v.76 no.4 pp. 587-589
ISSN:
0002-1962
Subject:
Fragiaqualfs; Gossypium hirsutum; Hapludalfs; cold stress; cultivars; germination; planting seed; seed quality; seedlings; seeds; silt loam soils; vigor; Arkansas
Abstract:
... Standard germination, defined as percent of healthy seedlings reaching 38 mm after 7 days at 30°C is the primary, and in most cases only, information defining planting seed quality of upland cotton (Gossypium hirsutum L.) to producers. However, this percentage reflects only the emergence potential when seed are planted during optimum field conditions. An additional germination test conducted at 18 ...
DOI:
10.2134/agronj1984.00021962007600040019x

75. Cotton leaf crumple virus disease in okra-leaf and normal-leaf cottons

Author:
Butler, G.D. Jr.; Wilson, F.D.; Henneberry, T.J.
Source:
Journal of economic entomology 1985 v.78 no.6 pp. 1500-1502
ISSN:
0022-0493
Subject:
Gossypium hirsutum; cultivars; plant viruses; disease vectors; Bemisia tabaci
DOI:
10.1093/jee/78.6.1500

76. Quantification of volatile terpenes of glanded and glandless Gossypium hirsutum L. cultivars and lines by gas chromatography

Author:
Elzen, G.W.; Williams, H.J.; Bell, A.A.; Stipanovic, R.D.; Vinson, S.B.
Source:
Journal of agricultural and food chemistry 1985 v.33 no.6 pp. 1079-1082
ISSN:
0021-8561
Subject:
Gossypium hirsutum; terpenoids; cultivars; Gossypium barbadense; gas chromatography
DOI:
10.1021/jf00066a015

77. Registration of Delcot 390 cotton

Author:
Sappenfield, W.P.
Source:
Crop science 1985 v.25 no.1 pp. 198
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars
DOI:
10.2135/cropsci1985.0011183X002500010050x

78. Registration of PD-1 cotton

Author:
Culp, T.W.; Moore, R.F.; Pitner, J.B.
Source:
Crop science 1985 v.25 no.1 pp. 198
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars
DOI:
10.2135/cropsci1985.0011183X002500010051x

79. Registration of PD-2 cotton

Author:
Culp, T.W.; Moore, R.F.; Pitner, J.B.
Source:
Crop science 1985 v.25 no.1 pp. 198-199
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars
DOI:
10.2135/cropsci1985.0011183X002500010052x

80. Relation of cotton cultivars to the cotton-pest problem in the Sudan Gezira

Author:
Bindra, O.S.
Source:
Euphytica 1985 v.34 no.3 pp. 849-856
ISSN:
0014-2336
Subject:
Gossypium barbadense; Gossypium hirsutum; cultivars; irrigated conditions; Bemisia tabaci; Helicoverpa armigera; pest resistance; pest control; Sudan
DOI:
10.1007/BF00035423

81. Relationship Between Weathering Deterioration and Germination, Respiratory Metabolism, and Mineral Leaching from Cottonseeds

Author:
L. W. Woodstock; K. Furman; H. R. Leffler
Source:
Crop science 1985 v.25 no.3 pp. 459-466
ISSN:
0011-183X
Subject:
Gossypium hirsutum; aeration; calcium; cottonseed; cultivars; electrolytes; electron microscopy; germination; imbibition; leaching; lipids; magnesium; manganese; metabolism; minerals; oxygen; planting; potassium; protein bodies; seed quality; seedlings; seeds; sodium; weathering
Abstract:
... Germination of cottonseeds (Gossypiura hirsutum L.) is reduced by preharvest exposure to ,weather, particularly if conditions are warm and humid. To identify some of the germination processes affected by weathering deterioration, seedlots of six cultivars were harvested before and after a period of field exposure and comparative germination studies were conducted. Seedling field emergence was redu ...
DOI:
10.2135/cropsci1985.0011183X002500030008x

82. Reproductive development and seed quality of cotton cultivars as affected by nitrogen fertilization

Author:
Leffler, H.R.; Hunter, J.H.
Source:
Field crops research 1985 v.10 no.3 pp. 219-228
ISSN:
0378-4290
Subject:
Gossypium hirsutum; cultivars; reproduction; nitrogen fertilizers
Abstract:
... Because they are environmentally sensitive, a study was conducted to evaluate the growth, development and seed quality of cotton (Gossypium hirsutum L.) as influenced by cultivar maturity, N fertilization, and a nitrification inhibitor. Early-maturing and full-season cultivars were grown in a Bosket fine silt loam (Mollic Hapludalf) supplied with either 50 or 100 kg N/ha as anhydrous ammonia, appl ...
Handle:
10113/35259
DOI:
10.1016/0378-4290(85)90028-0

83. Cellulose Packing Density in the Secondary Wall of Never Dried Cotton Fibers

Author:
M.-C. Peeters; E. De Langhe
Source:
Textile research journal 1986 v.56 no.12 pp. 755-758
ISSN:
0040-5175
Subject:
packaging; cotton; cotton industry; drying; cultivars; cellulose; Gossypium barbadense; Gossypium arboreum; Gossypium hirsutum
Abstract:
... This quantitative study of the cellulose content of secondary walls of never dried cotton fibers uses a technique based on colorimetry. The study reveals that the density of cellulose, i.e., the mass of cellulose per volume of secondary wall, is identical for all never dried cotton fibers and independent of the genotype. Various plant growth conditions do not influence this cellulose density. For ...
DOI:
10.1177/004051758605601207

84. Characterization of somatic embryogenesis and plant regeneration in cotton (Gossypium hirsutum L.)

Author:
Shoemaker, R.C.; Couche, L.J.; Galbraith, D.W.
Source:
Plant cell reports 1986 v.5 no.3 pp. 178-181
ISSN:
0721-7714
Subject:
cultivars; germination; morphogenesis; Gossypium hirsutum; embryogenesis; callus
DOI:
10.1007/BF00269112
PubMed:
24248126

85. Cotton Resistance to the Root Knot-Fusarium Wilt Complex. II. Relation to Root-Knot Resistance and its Implications on Breeding for Resistance

Author:
Raymond L. Shepherd
Source:
Crop science 1986 v.26 no.2 pp. 233-237
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; Fusarium oxysporum; Meloidogyne incognita; disease resistance; wilting; genes; screening; breeding methods
Abstract:
... The fusarium wilt fungus, Fusarium oxysporum Schlect f. vasinfectum [(Atk.) Synd.& Hans.], and the root-knot nematode (RKN) [Meloidogyne incognita (Kofoid & White) Chitwood] cause a destructive disease complex in cotton (Gossypium hirsutum L.). This study was conducted to determine the range of genetic resistance to RKN in a group of 18 cotton cultivars and breeding lines, to evaluate the relation ...
DOI:
10.2135/cropsci1986.0011183X002600020004x

86. Effect of cotton seedling infection by cotton-leaf crumple virus on subsequent growth and yield

Author:
Butler, G.D. Jr.; Brown, J.K.; Henneberry, T.J.
Source:
Journal of economic entomology 1986 v.79 no.1 pp. 208-211
ISSN:
0022-0493
Subject:
Gossypium hirsutum; cultivars; seedlings; plant viruses; Bemisia tabaci; disease vectors; yields; Arizona
Abstract:
... Cotton-leaf crumple (CLC) is a disease of cotton that occurs annually in the southwestern United States. CLC virus (CLCV) is transmitted exclusively by Bemisia tabaci (Gennadius), the sweetpotato whitefly. Ten cultivars of cotton, Gossypium hirsutum L., were inoculated at the 6-8 leaf stage to simulate early infection, and then were transplanted to the field along with noninoculated control plants ...
DOI:
10.1093/jee/79.1.208

87. Effects of Boll Pilosity on Some Traints of ‘Pima’ Cotton

Author:
Joshua A. Lee
Source:
Crop science 1986 v.26 no.4 pp. 741-743
ISSN:
0011-183X
Subject:
Gossypium barbadense; Gossypium hirsutum; cultivars; leaves; lint cotton; micronaire; trichomes
Abstract:
... A genetic stock, E-2, of ‘Pima’ cotton (Gossypium barbadense L.), differs from commercial cultivars of Pima in that the leaves, stems, and fruit (boll) surfaces are densely pubescent, and the fiber is coarser. Because there is no evidence that dense pubescence on leaves and stems of Pima affects fiber traits other than grade, I questioned whether pubescent boll in Pima cotton is accompanied by coa ...
DOI:
10.2135/cropsci1986.0011183X002600040023x

88. Effects of Environment upon Ovule Abortion in Interspecific F1 Hybrids and Single Species Cultivars of Cotton

Author:
R. G. Percy
Source:
Crop science 1986 v.26 no.5 pp. 938-942
ISSN:
0011-183X
Subject:
Gossypium hirsutum; Gossypium barbadense; cultivars; interspecific hybridization; ovules; environmental factors; Arizona
Abstract:
... High ovule abortion rates (mote production) observed in Gossypium hirsutum L. ✕ G. barbadense L. interspecific F₁ hybrids (ISH) have generally been attributed to the presence of genetic incompatibilities between the two parent species. Other causes of mote production within G. hirsutum and G. barbadense cottons are adverse environmental factors. This study was conducted to determine to what degree ...
DOI:
10.2135/cropsci1986.0011183X002600050020x

89. Heterosis in Upland Cotton. I. Growth and Leaf Area Partitioning

Author:
Randy Wells; William R. Meredith
Source:
Crop science 1986 v.26 no.6 pp. 1119-1123
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; heterosis; developmental stages; leaf area; leaf area index; hybrids; biomass; dry matter accumulation; lint cotton; crop yield; temperature; net assimilation rate; Mississippi
Abstract:
... There is relatively little information concerning the physiological alterations that are related to heterosis in cotton Gossypium hirsutum L.). To better understand this phenomenon, growth and partitioning of dry matter in four established upland cotton cultivars and their F₁ hybrid progeny were monitored in three environments. Total biomass was greater in hybrids than their parents in all environ ...
DOI:
10.2135/cropsci1986.0011183X002600060006x

90. Injury and Yield Response of Cotton to Chronic Doses of Ozone and Sulfur Dioxide

Author:
Allen S. Heagle; W. W. Heck; V. M. Lesser; J. O. Rawlings; F. L. Mowry
Source:
Journal of environmental quality 1986 v.15 no.4 pp. 375-382
ISSN:
0047-2425
Subject:
Gossypium hirsutum; air quality; cotton; crop yield; crops; cultivars; leaves; models; ozone; regression analysis; sulfur dioxide; North Carolina
Abstract:
... Knowledge of relationships between chronic doses of O₃ and crop yield is required to set air quality standards that protect agricultural interests and to determine the need to develop resistant cultivars of sensitive species. Open-top field chamber studies have provided some information of this type for a few crop species including one western cullivar of cotton (Gossypium hirsutum L.). Our object ...
DOI:
10.2134/jeq1986.00472425001500040011x

91. Registration of 'DES 119' cotton

Author:
Bridge, R.R.
Source:
Crop science 1986 v.26 no.3 pp. 646-647
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; early development; insect pests; disease resistance; pest resistance; fungal diseases of plants; Mississippi
DOI:
10.2135/cropsci1986.0011183X002600030050x

92. Registration of (Tamcot CAB-CS) upland cotton

Author:
Bird, L.S.; El-Zik, K.M.; Thaxton, P.M.
Source:
Crop science 1986 v.26 no.2 pp. 384-385
ISSN:
0011-183X
Subject:
Gossypium hirsutum; pest resistance; cultivars
DOI:
10.2135/cropsci1986.0011183X002600020038x

93. Response of nectariless cotton genotypes to cotton fleahopper (Heteroptera: Miridae) infestation

Author:
Lidell, M.C.; Niles, G.A.; Walker, J.K.
Source:
Journal of economic entomology 1986 v.79 no.5 pp. 1372-1376
ISSN:
0022-0493
Subject:
cultivars; nectar; Gossypium hirsutum; genotype; population density; pest resistance; Pseudatomoscelis seriatus; Texas
DOI:
10.1093/jee/79.5.1372

94. Smoothleaf and hirsute cottons: response to insect pests and yield in Arizona

Author:
Wilson, F.D.; George, B.W.
Source:
Journal of economic entomology 1986 v.79 no.1 pp. 229-232
ISSN:
0022-0493
Subject:
Gossypium hirsutum; cultivars; insect pests; pest resistance; crop damage; crop yield; Arizona
Abstract:
... Hirsute and semi-smoothleaf (sm3 allele) cultivars and smoothleaf (Sm3 allele) isolines of cotton, Gossypium hirsutum L., were exposed to natural populations of insect pests for three seasons at Tempe, Ariz. Duplicate experiments in 1981 and 1982 included seven hirsute and one semi-smoothleaf cultivar and the respective smoothleaf isolines. From these experiments, we selected two hirsute cultivars ...
DOI:
10.1093/jee/79.1.229

95. Wind tunnel flight responses by hymenopterous parasitoid Campoletis sonorensis to cotton cultivars and lines

Author:
Elzen, G.W.; Williams, H.J.; Vinson, S.B.
Source:
Entomologia experimentalis et applicata 1986 v.42 no.3 pp. 285-289
ISSN:
0013-8703
Subject:
Campoletis sonorensis; Gossypium anomalum; Gossypium arboreum; Gossypium hirsutum; bioassays; chemical composition; cotton; cultivars; diploidy; females; flight; habitats; leaves; odors; parasitoids; terpenoids; volatile compounds; wind tunnels
Abstract:
... The behavior of parasitoid Campoletis sonorensis females to cotton (Gossypium hirsutum) leaf odor sources was examined in a wind tunnel bioassay. Parasitoids exhibited oriented flights to cotton but not to inert sources, and flew in significantly greater proportion to glanded cotton when compared to glandless cotton in choice tests. A relative lack of volatile terpenes in glandless cotton may acco ...
DOI:
10.1111/j.1570-7458.1986.tb01034.x

96. Energy and Water Balance of a Sparse Crop: Simulated and Measured Soil and Crop Evaporation

Author:
R. J. Lascano; C. H. M. van Bavel; J. L. Hatfield; D. R. Upchurch
Source:
Soil Science Society of America journal 1987 v.51 no.5 pp. 1113-1121
ISSN:
0361-5995
Subject:
Gossypium hirsutum; Paleustolls; arid lands; canopy; cotton; crop production; cultivars; data collection; energy; evaporation; evapotranspiration; heat; irrigation; leaf area index; meteorological data; rowcrops; semiarid zones; soil temperature; soil water; soil water content; standard deviation; temperature profiles; transpiration; water use efficiency; Texas
Abstract:
... Dryland crops grown in semiarid environments often do not completely cover the soil, leaving a portion of the soil surface exposed to a condition of rapid soil-water evaporation. Quantitative separation of soil evaporation and crop transpiration is important if cultural practices or cultivars are to be evaluated. This study was designed to evaluate a combined energy and water balance model, ENWATB ...
DOI:
10.2136/sssaj1987.03615995005100050004x

97. Functional response of a predator (Neuroptera: Chrysopidae) to bollworm (Lepidoptera: Noctuidae) eggs on smoothleaf, hirsute, and pilose cottons

Author:
Treacy, M.F.; Benedict, J.H.; Lopez, J.D.; Morrison, R.K.
Source:
Journal of economic entomology 1987 v.80 no.2 pp. 376-379
ISSN:
0022-0493
Subject:
Gossypium hirsutum; cultivars; Helicoverpa zea; Chrysoperla rufilabris; trichomes; ova; predation; predators; phenotype; Texas
DOI:
10.1093/jee/80.2.376

98. Induction of Adventitious Shoots in Cotton

Author:
Joshua A. Lee
Source:
Crop science 1987 v.27 no.2 pp. 349-350
ISSN:
0011-183X
Subject:
Gossypium hirsutum; callus; cambium; cotton; cultivars; excision; tetraploidy
Abstract:
... Plants of the tetraploid cotton species Gossypium hirsutum L. ordinarily produce secondary shoots only from axillary buds. Destruction of the primary shoot by excision below the cotyledonary axils occasionally leads to the production of adventitious shoots. Two plants of the cultivar Coker 201 produced adventitious shoots from what appeared to be callus tissue growing outward from stem cambium aft ...
DOI:
10.2135/cropsci1987.0011183X002700020046x

99. Pink bollworm resistance, lint yield, and earliness of cotton isolines in a resistant genetic background

Author:
Wilson, F.D.
Source:
Crop science 1987 v.27 no.5 pp. 957-960
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; isogenic lines; Pectinophora gossypiella; pest resistance; plant morphology; plant damage; crop yield; early development; Arizona
Abstract:
... Natural resistance of cotton, Gosspyium hirsutum L., to pink bollworm (PBW), Pectinophora gossypiella (Saunders), may be increased by combining individual resistance traits. The objectives of this study were to determine: (i) the levels of resistance to PBW, as measured by seed damage, in germplasm lines carrying a single morphological resistance trait in a resistant genetic background; (ii) wheth ...

100. Plant Pubescence, Genetic Background, and Seasonal Effects on Agronomic and Fiber Properties of Upland Cotton

Author:
F. D. Wilson; R. L. Shepherd
Source:
Crop science 1987 v.27 no.5 pp. 865-868
ISSN:
0011-183X
Subject:
cultivars; Gossypium hirsutum; trichomes; agronomic traits; genotype-environment interaction; yield components; fiber quality; pest resistance; Arizona
Abstract:
... Smooth-leaved lines of cotton (Gossypium hirsutum L.), although showing resistance to certain insects, have frequently been deficient in some agronomic and fiber properties. In this study, we compared lint yield, yield components, and other agronomic and fiber properties in smoothleaf and hirsute cotton in eight genetic backgrounds in 1981 and 1982, and in two backgrounds in 1983. Plots were grown ...
DOI:
10.2135/cropsci1987.0011183X002700050006x