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1. Effects of Management Prectices on Forage Yield and Percent Protein in Blue Panicgrass, Panicum antidotale Retz.

Author:
Neal Wright
Source:
Agronomy journal 1962 v.54 no.5 pp. 413-416
ISSN:
0002-1962
Subject:
Panicum antidotale; Panicum coloratum; forage yield; harvest date; maturity stage; nitrogen fertilizers
Abstract:
... SynopsisBlue panicgrass forage yield and percent protein were increased by nitrogen fertilizer. Highly significant positive correlation, coefficients between yield and percent protein were found. Maturity stage and clipping height significantly influenced yield. Percent protein significantly decreased as blue panicgrass matured. The soilmoisture-stress treatments did not significantly influence yi ...
DOI:
10.2134/agronj1962.00021962005400050012x

2. Root Weight and Distribution of Blue Panicgrass, Panicum antidotale Retz., as Affected by Fertilizers, Cutting Height, and Soil-Moisture Stress

Author:
Neal Wright
Source:
Agronomy journal 1962 v.54 no.3 pp. 200-202
ISSN:
0002-1962
Subject:
Panicum antidotale; Panicum coloratum; agronomy; nitrogen fertilizers; soil water
Abstract:
... SynopsisRoot distribution by weight to a depth of 12 feet showed 70% of the roots in the top 2 feet. A significant root weight increase resulted from nitrogen fertilizer with maximum response at the 525-pound level. Root weights were significantly increased when 525 pounds of P was applied with 175 pounds of N. No further increase occurred when N was increased to 875 pounds per acre. Other treatme ...
DOI:
10.2134/agronj1962.00021962005400030006x

3. Influence of Clipping on Yield, Regrowth, and Root Development of Dallisgrass, Paspalum Dilatatum Poir., and Kleingrass, Panicum coloratum L.

Author:
Ethan C. Holt; Jerry C. McDaniel
Source:
Agronomy journal 1963 v.55 no.6 pp. 561-564
ISSN:
0002-1962
Subject:
Panicum coloratum; Paspalum dilatatum; agronomy; defoliation; forage; regrowth; spring; stubble
Abstract:
... SynopsisWeights of stubble, crown, and roots of dallisgrass decreased from spring to fall. Neither yield nor basal plant weight were greatly influenced by clipping treatments. The weight changes were interpreted as being an inherent characteristic rather than a response to specific management practices. Kleingrass appeared to be favored by the less intensive defoliation treatments. Treatments whic ...
DOI:
10.2134/agronj1963.00021962005500060018x

4. Reduction of Nitrogen Losses Under Irrigation by Coating Fertilizer Granules

Author:
M. D. Heilman; J. R. Thomas; L. N. Namken
Source:
Agronomy journal 1966 v.58 no.1 pp. 77-80
ISSN:
0002-1962
Subject:
Panicum coloratum; ammonium nitrate; cabbage; coatings; drainage; fertilizers; forage yield; granules; greenhouse experimentation; irrigated soils; irrigation; leaching; nitrogen; nitrogen content; soil water
Abstract:
... Resin-coated and noncoated NH₄NO₃ fertilizers were compared on irrigated soils with free drainage. In the greenhouse studies, coated NH₄NO₃ at rates of 150, 300, 600, and 1200 mg N per pot were more efficient than noncoated NH₄NO₃ at the same rates in increasing forage yield and N content of blue panicgrass. Coating the fertilizer particles did not affect cabbage yields under field conditions. How ...
DOI:
10.2134/agronj1966.00021962005800010026x

5. Sustained Production of Blue Panicgrass, Panicum antidotale Retz., as Influenced by Management Practices

Author:
Ethan C. Holt
Source:
Agronomy journal 1967 v.59 no.4 pp. 309-311
ISSN:
0002-1962
Subject:
Panicum antidotale; Panicum coloratum; agronomy; booting stage; defoliation; nitrogen; stubble; vigor; Iowa; Texas
Abstract:
... Blue panicgrass, Panicum antidotale Retz., frequently loses vigor following the year of establishment. The effect of cutting height, defoliation frequency, and nitrogen level on sustained production was studied at College Station and Iowa Park, Texas. Delaying harvest later than the boot stage had no advantage in yield in either the current or succeeding year and yield was less with greater stubbl ...
DOI:
10.2134/agronj1967.00021962005900040006x

6. Variability in Components of Seed Production in Panicum coloratum L.

Author:
C. Jackson Hearn; Ethan C. Holt
Source:
Crop science 1969 v.9 no.1 pp. 38-40
ISSN:
0011-183X
Subject:
Panicum coloratum; seed set; seed shattering; heritability
Abstract:
... Seed shattering is a critical problem in Panicum coloratum L. Detailed studies of seed production components failed to detect any significant differences in actual seed holding ability within a limited population. However, plants with the greatest number of seed in panicles 14 days after initial anthesis also tended to have the greatest number at [atervals up to 31 days after initial anthesis. Sig ...
DOI:
10.2135/cropsci1969.0011183X000900010013x

7. Water-Use Efficiency and Its Association with Several Characteristics Blue Panicgrass (Panicum antidotale Retz.) Clones

Author:
A. K. Dobrenz; L. Neal Wright; M. A. Massengale; W. R. Kneebone
Source:
Crop science 1969 v.9 no.2 pp. 213-216
ISSN:
0011-183X
Subject:
Panicum antidotale; Panicum coloratum; alanine; arginine; climatic factors; clones; dry matter accumulation; glycine (amino acid); histidine; leaves; lysine; protein content; seedlings; soil water; vascular bundles; water use efficiency; Southwestern United States
Abstract:
... Water-use efficiency and its relationship to physiological and morphological characteristics was investigated using blue panicgrass (Panicum antidotale Retz.). Four clones which had been characterized previously as being seedling drouth tolerant and four as being seedling drouth susceptible were subjected to three levels of soil-moisture stress. A program-controlled environment was used to simulat ...
DOI:
10.2135/cropsci1969.0011183X000900020031x

8. Vegetative Bud Activity in Blue Panicgrass

Author:
J. M. Spiers; E. C. Holt
Source:
Crop science 1970 v.10 no.6 pp. 615-617
ISSN:
0011-183X
Subject:
Panicum antidotale; Panicum coloratum; agar; rhizomes; vigor
Abstract:
... Bud activity (number of elongated buds) and length of shoot growth from buds were determined in rhizome, crown, and stem tissues of blue panicgrass (Panicum antidotale Retz). Three plants were selected semimonthly from a uniformly fertilized plot. From each of these plants, four samples of viable stem, crown, and rhizome buds were sampled at random. Bud activity was determined by an in vitro metho ...
DOI:
10.2135/cropsci1970.0011183X001000060001x

9. Forage Characteristics Limiting Animal Performance on Warm-season Perennial Grasses

Author:
R. L. Duble; J. A. Lancaster; E. C. Holt
Source:
Agronomy journal 1971 v.63 no.5 pp. 795-798
ISSN:
0002-1962
Subject:
Cynodon dactylon; Eragrostis curvula; Panicum coloratum; Paspalum notatum; acid detergent fiber; average daily gain; cell walls; dry matter digestibility; forage; grazing; heifers; in vitro digestibility; lignification; lignin; pastures; perennial grasses; silica; summer; warm season; yearlings
Abstract:
... Chemical and in vitro characteristics of six perennial summer grasses {common, ‘Coastal’ and ‘Coastcross-1’ bermudagrasses [Cynodon dactylon (L.) Pers.]; ‘Pensacola’ bahiagrass [Paspalum notatum Flugge]; common weeping lovegrass [Eragrostis curvula (Schrad.) Nees.]; and ‘Kleingrass 75’ [Panicum coloratum L.]} were determined to identify factors limiting the performance of grazing animals. In vitro ...
DOI:
10.2134/agronj1971.00021962006300050042x

10. Nitrogen Utilization in Blue Panicgrass

Author:
J. M. Spiers; E. C. Holt
Source:
Agronomy journal 1971 v.63 no.2 pp. 309-312
ISSN:
0002-1962
Subject:
Panicum antidotale; Panicum coloratum; application rate; fertilizer application; grasses; growing media; leaves; nitrate nitrogen; nitrates; nitrogen; nitrogen fertilizers; protein metabolism; roots; sand; stems; total nitrogen
Abstract:
... Blue panicgrass (Panicum antidotale Retz) plants were grown in a sand culture, subjected to contrasting forms of nitrogen fertilization applied at differing rates, and harvested at varying intervals following fertilization. A determination of total nitrogen in plant material was used to evaluate uptake efficiency. Fractionations of the total nitrogen portion into insoluble, soluble, nitrate, and s ...
DOI:
10.2134/agronj1971.00021962006300020033x

11. Effect of N, P, and K Fertilization and Stages of Maturity on Chemical Composition of Fiber in Kleingrass (Punicum coloratum L.)

Author:
F. M. Rouquette; E. C. Holt; W. C. Ellis
Source:
Agronomy journal 1972 v.64 no.4 pp. 456-459
ISSN:
0002-1962
Subject:
NPK fertilizers; Panicum coloratum; cell wall components; cellulose; detergents; fertilizer application; harvest date; hemicellulose; leaves; lignin; neutral detergent fiber; nitrogen; nutritive value; plant fibers; stems
Abstract:
... Studies were conducted to determine the influence of N, P, and K fertilization and different stages of growth on the nutritional quality of kleingrass (Panicum coloratum L.) forage. Nitrogen rates ranged from 28 to 560 kg/ha with additions of 24 and 73 kg/ha P, and O, 46, and 139 kg/ha K. Leaf-stem separations were made at each harvest date and cellular (neutral detergent extract; NDE) and cell wa ...
DOI:
10.2134/agronj1972.00021962006400040014x

12. Effects of Defoliation Treatments on Morphological Characteristics and Carbohydrate Reserves in Kleingrass (Panicum coloratum L.)

Author:
G. W. Evers; E. C. Holt
Source:
Agronomy journal 1972 v.64 no.1 pp. 17-20
ISSN:
0002-1962
Subject:
Panicum coloratum; carbohydrates; defoliation; leaf area; stubble; tillers
Abstract:
... Various management practices on ldeingrass (Panicum coloratumL.) were evaluated in terms of yield, leaf area, tiller number, crown weight, stubble leaf area, and total non-structural carbohydrates. Kleingrass was cut at 3-, 4- and 5-week frequencies at heights of 5 and 15 cm. Two dates of initial cutting in the spring-were used. Yield was essentially uniform across all treatment combinations. Neit ...
DOI:
10.2134/agronj1972.00021962006400010006x

13. Nutritive Characteristics of Kleingrass at Various Stages of Maturity. I. Chemical Evaluations of Experimental Synthetic Varieties

Author:
F. M. Rouquette; E. C. Holt; W. C. Ellis
Source:
Agronomy journal 1974 v.66 no.4 pp. 506-510
ISSN:
0002-1962
Subject:
Panicum coloratum; acid insoluble ash; cellulose; detergents; forage quality; harvesting; hemicellulose; leaves; lignin; maturity stage; neutral detergent fiber; plant age; regrowth; seed maturation; soft dough stage; synthetic populations; tillers
Abstract:
... Previously selected plants for improved lines of kleingrass (Panicum coloratum L.) were evaluated for growth and seed production characteristics. At the initiation of this test, 13 experimental synthetic varieties were available for chemical comparisons of forage quality. This study was conducted to determine if differences existed in percent of neutral detergent fiber (NDF) and NDF components wit ...
DOI:
10.2134/agronj1974.00021962006600040009x

14. Nutritive Characteristics of Kleingrass at Various Stages of Maturity. II. In vivo and In vitro Evaluations of Selected Varieties

Author:
F. M. Roquette; E. C. Holt; W. C. Ellis
Source:
Agronomy journal 1974 v.66 no.4 pp. 510-513
ISSN:
0002-1962
Subject:
Panicum coloratum; cellulose; detergents; digestibility; digestible dry matter; forage; hares; harvest date; hemicellulose; in vitro studies; lignin; neutral detergent fiber; plant age; plant growth; regrowth; seed maturation; soft dough stage; synthetic populations
Abstract:
... Recent studies hare shown that differences in neutral detergent fiber:neutral detergent solubles ratios (NDF:NDS) exist within experimental synthetic varieties of kleingrass (Panicum coloratum L.), and those varieties which had the highest NDF content were genetically closely related. This investigation was initiated to determine if selected varieties which differed in NDF:NDS also differed in in ...
DOI:
10.2134/agronj1974.00021962006600040010x

15. Yield Components and Quality of Siratro-Kleingrass Association

Author:
Lotar Siewerdt; Ethan C. Holt
Source:
Agronomy journal 1974 v.66 no.1 pp. 65-67
ISSN:
0002-1962
Subject:
Macroptilium atropurpureum; Panicum coloratum; crude protein; cutting frequency; digestibility; digestible dry matter; forage; forage production; grasses; legumes; nitrogen; residual effects; sward; yield components; Australia
Abstract:
... An examination of the potential of a tropical legume to contribute improved forage production and quality as well as nitrogen (N) to a grass-legume association was undertaken. ‘Siratro’ (Phaseolus atropurpureus D.C.) and ‘Kleingrass 75’ (Panicum coloratum L.) were chosen for study based on their reported performance. Siratro, introduced from Australia, was grown in association with Kleingrass 75, ...
DOI:
10.2134/agronj1974.00021962006600010017x

16. Inflorescence Gas Exchange and Seed Weight of Blue Panicgrass

Author:
Rollin H. Abernethy; L. Neal Wright
Source:
Crop science 1975 v.15 no.3 pp. 383-384
ISSN:
0011-183X
Subject:
Panicum antidotale; Panicum coloratum; gas exchange; photosynthesis; recurrent selection; seed weight
Abstract:
... Blue panicgrass (Panicum antidotale Retz.) selections from six cycles of recurrent selection for heavy and lightseed weight were evaluated to establish the relationship between photosynthesis and respiration rates of inflorescences and seed weight. Selections with light seed weight had lower apparent photosynthesis and higher dark-respiration rates of inflorescences. Data suggest that differences ...
DOI:
10.2135/cropsci1975.0011183X001500030030x

17. Effect of Herbicides on Production and Protein Levels in Pasture Grasses

Author:
J. R. Baur; R. W. Bovey; E. C. Holt
Source:
Agronomy journal 1977 v.69 no.5 pp. 846-851
ISSN:
0002-1962
Subject:
2,4-D; Albaqualfs; Cenchrus ciliaris; Cenchrus setiger; Cynodon dactylon; Haplustolls; Panicum coloratum; acetic acid; adverse effects; application rate; glyphosate; grasses; herbicide resistance; hybrids; pasture plants; pastures; pesticide application; picloram; protein content; spring; tebuthiuron
Abstract:
... Field studies were conducted to evaluate the effects of spring application of picloram (4-amino-3,5,6-trichloropicolinic acid), tebuthiuron (N-[5-(l,l-dimethylethyl)-l,3, 4-thiadiazol-2-yl] -N,N′-dimethylurea), 2,4-D (isopropyl amine of (2,4-dichlorophenoxy)acetic acid), and glypho- sate (N-[phosphonomethyl]glycine) on five grasses. The grasses were Common and ‘Coastal’ bermudagrass (Cynodon dacty ...
DOI:
10.2134/agronj1977.00021962006900050030x

18. Recurrent Selection for Changing Gene Frequency of Germination Rate in Blue Panicgrass

Author:
L. Neal Wright
Source:
Crop science 1978 v.18 no.5 pp. 789-791
ISSN:
0011-183X
Subject:
Panicum antidotale; Panicum coloratum; gene frequency; genetic variation; germination; phenotype; phenotypic selection; recurrent selection
Abstract:
... Genotypes of blue panicgrass, Panicum antidotale Retz, with extreme rates of germination were isolated through succeeding cycles by recurrent phenotypic selection with restricted intercrossing by random mating. The number of days required to germinate 50% of the seed was used to estimate rate of germination. Daily germination data were used to determine germination rate estimates by the Regression ...
DOI:
10.2135/cropsci1978.0011183X001800050025x

19. Forage Sampling Factors Influencing the Variability of In Vitro Fermentation Results of Grass Selections

Author:
E. C. Holt; W. C. Ellis; G. R. Engdahl
Source:
Crop science 1979 v.19 no.2 pp. 219-222
ISSN:
0011-183X
Subject:
Cenchrus ciliaris; Panicum coloratum; breeding programs; clones; digestibility; drying; fermentation; flowering date; forage; genotype; grasses; grinding; regrowth; tillers; variance
Abstract:
... Variation in in vitro fermentation estimates of forage digestibility is a problem. Only a few studies have quantified the extent of laboratory variation, and even less information is available on variability associated with sample collection, processing, and storage prior to analysis. A study was designed to evaluate the effects of source of samples and maturation on genotype selection in a breedi ...
DOI:
10.2135/cropsci1979.0011183X001900020012x

20. Yield and Rooting Activity of Forage Grasses on a Surface-mined Soil of Texas

Author:
F. M. Hons; L. R. Hossner; E. L. Whiteley
Source:
Agronomy journal 1979 v.71 no.1 pp. 113-116
ISSN:
0002-1962
Subject:
Cynodon dactylon; Paleustalfs; Panicum coloratum; Paspalum notatum; agronomy; field capacity; forage production; land restoration; lignite; mined soils; montmorillonite; nitrogen; texture; Texas
Abstract:
... Lignite mining is an expanding industry within Texas. Little or no research has been reported concerning forage production and revegetation following disturbance in this region. Forage plots were established in 1975 to determine the effect of disturbance upon forage production in an area which had been surface-mined for lig nite in 1972. The mined soil was originally classified in the fine , montm ...
DOI:
10.2134/agronj1979.00021962007100010029x

21. Response of Kleingrass and Buffelgrass to Herbicides

Author:
R. W. Bovey; J. R. Baur; M. G. Merkle; E. C. Bashaw
Source:
Agronomy journal 1980 v.72 no.1 pp. 53-55
ISSN:
0002-1962
Subject:
Cenchrus ciliaris; Panicum coloratum; Sphagnum; alachlor; ametryn; application rate; atrazine; clay; greenhouse experimentation; linuron; metolachlor; pendimethalin; pesticide application; phytotoxicity; postemergent weed control; prometryn; propachlor; propazine; sand; seedlings; sowing; spray volume; vigor; weeds
Abstract:
... Kleingrass and buffelgrass are sometimes difficult to establish in the field from seeding because of poor seedling vigor and severe competition from weeds. Greenhouse studies were conducted to evaluate the tolerance of kleingrass (Panicum coloratum L. ‘Selection 75’) and buffelgrass (Cenchrus ciliaris L. ‘Nueces’) seedlings to nine herbicides applied pre and postemergence at rates of 0, 0.28, 0.56 ...
DOI:
10.2134/agronj1980.00021962007200010011x

22. Non-Genetic Factors Affecting Primary Root Absence in Lovegrass and Kleingrass

Author:
C. R. Tischler; P. W. Voigt
Source:
Crop science 1981 v.21 no.3 pp. 427-430
ISSN:
0011-183X
Subject:
Eragrostis curvula; Panicum coloratum; acid treatment; butyric acid; coleoptiles; mechanical damage; root growth; temperature
Abstract:
... Small percentages of seedlings of ‘Selection 75’ kleingrass (Panicum coloratum L.) and ‘Ermelo’ lovegrass [Eragrostis curvula (Schrad.) Nees] have no primary root at emergence. An investigation was undertaken to determine whether light, temperature, mechanical damage, or butyric acid treatment increases the frequency of seedlings having no primary root (no-root seedlings). In both grasses, frequen ...
DOI:
10.2135/cropsci1981.0011183X002100030018x

23. Environmental Relationships with Forage Quality of Warm-Season Perennial Grasses

Author:
W. D. Pitman; E. C. Holt
Source:
Crop science 1982 v.22 no.5 pp. 1012-1016
ISSN:
0011-183X
Subject:
Panicum coloratum; Leptochloa dubia; temperature; photoperiod
Abstract:
... Seasonal patterns of digestibility of warm-season perennial grasses in the southwestern U. S. A. generally show peaks in early spring and low values in mid-summer. This research was conducted to determine if the patterns of digestibility of kleingrass (Panicum coloratum L.), green sprangletop [Leptochloa dubia (H.B.K.) Nees], and plains bristlegrass (Setaria macrostachya H.B.K.) were related to te ...
DOI:
10.2135/cropsci1982.0011183X002200050028x

24. Variation of 14C-labeled Photosynthate Recovery from Roots and Rooting Media of Warm Season Grasses

Author:
D. M. Vietor
Source:
Crop science 1982 v.22 no.2 pp. 362-366
ISSN:
0011-183X
Subject:
isotopes; carbon; Panicum coloratum; Pennisetum glaucum; Paspalum notatum
Abstract:
... Variation of photosynthate supply to the grass rhizosphere has been hypothesized to explain variation of acetylene reduction rates among soilplant cores of grasses. Kleingrass (Panicum coloratum L.), pearl millet (Pennisetum americanum (L.) K. Schum.), and bahlagrass (Paspalum notatum Flugge) were grown hydroponically at concentrations of 56, 112, and 224 ppm to determine the proportion of photosy ...
DOI:
10.2135/cropsci1982.0011183X002200020038x

25. Effects of Chemical and Physical Treatments on Germination of Freshly-Harvested Kleingrass Seed

Author:
Charles R. Tischler; Bruce A. Young
Source:
Crop science 1983 v.23 no.4 pp. 789-792
ISSN:
0011-183X
Subject:
Panicum coloratum; forage grasses
Abstract:
... Freshly-harvested kleingrass (Panicum coloratum L.) seed exhibit post-harvest dormancy (approximately 10 to 20% germination) which is essentially lost following 6 months storage at room temperature. The purpose of this investigation was to determine if physical and chemical seed treatments can circumvent or alleviate this dormancy. For all experiments, total germination of seed was determined over ...
DOI:
10.2135/cropsci1983.0011183X002300040045x

26. Histological Differences in Moisture-Stressed and Nonstressed Kleingrass Forage

Author:
W. D. Pitman; E. C. Holt; B. E. Conrad; E. C. Bashaw
Source:
Crop science 1983 v.23 no.4 pp. 793-795
ISSN:
0011-183X
Subject:
Panicum coloratum; bundle sheath cells; cell wall components; cell walls; digestibility; forage; histology; leaves; light microscopy; lignification; protoplasts; sclerenchyma; staining; vacuoles; water content
Abstract:
... Leaf sections from 15-day old kleingrass (Panicum coloratum L.) plants grown under moisture stress, optimal moisture conditions, and an intermediate moisture level were examined by light microscopy. The proportion of cell volume of parenchyma bundle sheath cells occupied by the protoplast and vacuole was markedly less for plants grown at the lower moisture levels than for plants at the highest moi ...
DOI:
10.2135/cropsci1983.0011183X002300040046x

27. Seedling Characteristics and Rates of Seed Reserve Utilization of Wilman Lovegrass and Kleingrass

Author:
C. R. Tischler; P. W. Voigt
Source:
Crop science 1983 v.23 no.5 pp. 953-955
ISSN:
0011-183X
Subject:
Panicum coloratum
Abstract:
... The objective of this study was to determine why wilman lovegrass (Eragrostis superba Peyr.) has a greater shoot mass (P < 0.01) at 14 days postemergence than does kleingrass (Panicum coloratum L.). Caryopses of both species contain the same amount of starch, but wilman lovegrass caryopses contain more protein and P (P < 0.01). Wilman lovegrass had a greater shoot mass than kleingrass at 3 and 7 d ...
DOI:
10.2135/cropsci1983.0011183X002300050033x

28. Effects of Pattern and Amount of Simulated Rainfall on Seedling Dynamics of Weeping Lovegrass and Kleingrass

Author:
David B. Wester; Bill E. Dahl; Paul F. Cotter
Source:
Agronomy journal 1986 v.78 no.5 pp. 851-855
ISSN:
0002-1962
Subject:
Eragrostis curvula; Panicum coloratum; seedling emergence; seed germination; rangelands; sowing; rain; dynamics; laboratory techniques; Texas
Abstract:
... Range seeding is a common improvement practice for revegetating abandoned cultivated land or following mechanical brush control. However, seeding failure is frequent because of unfavorable moisture and temperature conditions. The objective of this research was to study weeping lovegrass (Eragrostis curvula) and Kleingrass (Panicum coloratum) seedling emergence and survival in response to 16 differ ...
DOI:
10.2134/agronj1986.00021962007800050022x

29. Kleingrass Yield and Quality under Three Irrigation Regimes when Harvested at Anthesis

Author:
R. P. Clark; D. G. Lugg
Source:
Agronomy journal 1986 v.78 no.2 pp. 235-239
ISSN:
0002-1962
Subject:
Panicum coloratum; forage; yields; irrigation scheduling; harvesting; water stress; fertilizers; soil water content; pastures; New Mexico
Abstract:
... Kleingrass (Panicum coloratum L.) is a promising forage species for irrigated areas in the southwestern USA. However, the effect of different irrigation regimes on dry forage yield and forage quality has not yet been extensively investigated under field conditions. Accordingly, ‘Kleingrass-75’ kleingrass was irrigated at intervals of 2, 3, and 5 weeks during the 1981 and 1982 growing seasons near ...
DOI:
10.2134/agronj1986.00021962007800020004x

30. Selection for Increased Seed Weight in Kleingrass

Author:
M. A. Hussey; E. C. Holt
Source:
Crop science 1986 v.26 no.6 pp. 1162-1163
ISSN:
0011-183X
Subject:
Panicum coloratum; seedling emergence; vigor; selection methods; pastures; land restoration; heritability; Texas
Abstract:
... Selection for increased seed weight was investigated as a potential method for improving seedling vigor and stand establishment characteristic of kleingrass (Panicum coloratum L.). Three cycles of mass selection for increased seed weight were conducted. Selection resulted in a total gain of 53.3% of the mean seed weight of the base population with gains of 27.1,1.8, and 18.5% in Cycles 1 and 2, an ...
DOI:
10.2135/cropsci1986.0011183X002600060017x

31. Development and Characteristics of a Kleingrass Population with Reduced Post-Harvest Seed Dormancy

Author:
C. R. Tischler; B. A. Young
Source:
Crop science 1987 v.27 no.6 pp. 1238-1241
ISSN:
0011-183X
Subject:
Panicum coloratum; seed germination; seed dormancy; recurrent selection; acids; temperature; photoperiod
Abstract:
... Kleingrass (Panicum coloratam L.) seed has a period of postharvest dormancy lasting approximately 0.5 yr. Six cycles of recurrent selection (selecting seedlings germinating within 3 days) for reduced post-harvest dormancy were used to generate a plant population (LD-6) in which germination of freshly harvested seed was approximately 90%, compared to 5 to 20% for unselected material. Four germinati ...
DOI:
10.2135/cropsci1987.0011183X002700060030x

32. Kleingrass (Panicum coloratum L.) Poisoning in Sheep

Author:
C. H. Bridges; B. J. Camp; C. W. Livingston; E. M. Bailey
Source:
Veterinary pathology v.24 no.6 pp. 525-531
ISSN:
1544-2217
Subject:
lambs; Panicum coloratum; poisoning; liver diseases; crystals; pathogenesis; adrenal glands; myocardium; kidneys; photosensitivity disorders
Abstract:
... Twenty-four lambs grazing pastures of Panicum coloratum developed photosensitization secondary to hepatic dysfunction. Lesions were necrosis of scattered hepatocytes, obstruction of small bile ducts and bile canaliculi by small aggregates of birefringent crystals, and accumulation of birefringent crystals in phagocytes within sinusoids. The number of crystals in livers of affected sheep varied, de ...
DOI:
10.1177/030098588702400609
PubMed:
3455080

33. Nitrogen Transfer from Siratro to Kleingrass: Competition for Mineral Nitrogen and Isotopic Fractionation

Author:
M. Ismaili; R. W. Weaver
Source:
Agronomy journal 1987 v.79 no.2 pp. 188-192
ISSN:
0002-1962
Subject:
Macroptilium atropurpureum; Panicum coloratum; nitrogen; plant competition; nitrogen fixation; isotope labeling
Abstract:
... Availability of combined N limits productivity of Kleingrass (Panicum coloratum L.) when grown with siratro (Macropitilium atropurpureum D.C. Urb.). An experiment was undertaken in a glasshouse to measure the quantity of N transferred from siratro to Kleingrass and the competitive relationship between siratro and Kleingrass for mineral N. Plants were grown for 187 days in pure stand and in mixture ...
DOI:
10.2134/agronj1987.00021962007900020003x

34. Adventitious Root Initiation in Kleingrass in Relation to Seedling Size and Age

Author:
C. R. Tischler; P. W. Voigt; E. C. Holt
Source:
Crop science 1989 v.29 no.1 pp. 180-183
ISSN:
0011-183X
Subject:
root systems; Panicum coloratum; vigor; seedlings; plant establishment; maturity stage; seedling emergence; Texas
Abstract:
... Successful establishment of grasses depends on initiation and growth of adventitious roots. This study was undertaken to determine the minimum size and/or age requirement for adventitious root development in kleingrass (Panicum coloratum L.) seedlings, and also to determine which of these two factors is more important in controlling or regulating adventitious root development. Shoot mass was modif ...
DOI:
10.2135/cropsci1989.0011183X002900010039x

35. Carbon partitioning patterns of mycorrhizal versus non‐mycorrhizal plants: real‐time dynamic measurements using 11CO2

Author:
G. M. WANG; D. C. COLEMAN; D. W. FRECKMAN; M. I. DYER; S. J. McNAUGHTON; M. A. AGRA; J. D. GOESCHL
Source:
new phytologist 1989 v.112 no.4 pp. 489-493
ISSN:
0028-646X
Subject:
Panicum coloratum; carbon; carbon dioxide; gas exchange; isotope labeling; Gigaspora margarita; translocation (plant physiology)
Abstract:
... Gas exchange and carbon allocation patterns were studied in two populations of Panicum coloratum, an Africa C‐4 grass. The plants were grown in split‐root pots, containing partially sterilized soil, with one side either inoculated (I) or not inoculated (NI) with a vesicular arbuscular (VA) mycorrhizal Fungus, Gigaspora margarita. Net carbon exchange rates (CER) and stomatal conductances were measu ...
DOI:
10.1111/j.1469-8137.1989.tb00342.x

36. Water Relationships of Claypan and Constructed Soil Profiles

Author:
Victor L. Hauser; F. W. Chichester
Source:
Soil Science Society of America journal 1989 v.53 no.4 pp. 1189-1196
ISSN:
0361-5995
Subject:
Paleustalfs; Panicum coloratum; claypan soils; coal; drought; forage production; forage yield; infiltration rate; mine spoil; mined soils; mulches; physical properties; pyrite; rain; soil profiles; surface mining; toxicity; water storage; Texas
Abstract:
... Claypan soils with poor physical properties are the only surface materials available to cover and reclaim much of the spoil left by strip mining for coal in east-central Texas. We compared an undisturbed claypan soil profile of Axtell fsl fine montmorillonitic, thermic Udertic Paleustalfs) to four constructed soil profiles and evaluated them as cover soils for toxic minespoil. We compared profiles ...
DOI:
10.2136/sssaj1989.03615995005300040033x

37. Establishiment of Kleingrass with Annual Ryegrass and Other Cultural Treatments

Author:
R. W. Bovey; V. L. Hauser; R. E. Meyer
Source:
Agronomy journal 1990 v.82 no.2 pp. 216-221
ISSN:
0002-1962
Subject:
Panicum coloratum; direct seeding; winter; cover crops; Lolium multiflorum; Trifolium vesiculosum; Avena sativa; site preparation; pesticide application; glyphosate; mowing; discing; manual weed control; plant establishment; Texas
Abstract:
... Weed control is required after seeding kleingrass (Panicum coloratum L.) to assure sucoessful stand establishment. Four field experiments were conducted over a 4-yr period at two sites in Texas to evaluate a winter cover of annual ryegrass (Lolium multiflorum Lam.) and cultural treatments before seeding kleingrass as possible weed control methods. Hand-weeding during establishment increased kleing ...
DOI:
10.2134/agronj1990.00021962008200020009x

38. Change in Chemical Properties of Constructed Minesoils Developing under Forage Grass Management

Author:
F. W. Chichester; Victor L. Hauser
Source:
Soil Science Society of America journal 1991 v.55 no.2 pp. 451-459
ISSN:
0361-5995
Subject:
Paleustalfs; Panicum coloratum; agricultural productivity; chemical analysis; crop residues; electrical conductivity; forage grasses; forage yield; fossils; mine spoil; mined soils; pH; salts; sandy loam soils; soil formation; stand establishment; water stress; weathering
Abstract:
... There is a need to better understand the effects of selection, placement, and management of coal-overburden materials on subsequent development and agricultural productivity of constructed minesoils. This field study sought to determine chemical changes that occurred in several minesoils during the early stages of soil formation and to evaluate these changes relative to the continued suitability o ...
DOI:
10.2136/sssaj1991.03615995005500020026x

39. Heritability of Resistance to Seed Shattering in Kleingrass

Author:
Bruce A. Young
Source:
Crop science 1991 v.31 no.5 pp. 1156-1158
ISSN:
0011-183X
Subject:
Panicum coloratum; heritability; seed shattering; genetic resistance; seed quality; seeds; genetic variation; genotype-environment interaction; recurrent selection; inheritance (genetics); phenotype; phenotypic variation
Abstract:
... Seed shattering and nonuniformity of seed ripening in kleingrass, Panicum coloratum (L.), reduce the quantity of harvestable seed and contribute to diminished seed quality. In this study two populations were derived from an accession of kleingrass (PI 410177) that has superior seed retention. The objective was to determine the heritability of seed retention and the feasibility of developing improv ...
DOI:
10.2135/cropsci1991.0011183X003100050015x

40. Response of Selected Forage Grasses to Herbicides

Author:
R. W. Bovey; M. A. Hussey
Source:
Agronomy journal 1991 v.83 no.4 pp. 709-713
ISSN:
0002-1962
Subject:
forage crops; grasses; herbicides; weed control; phytotoxicity; field experimentation; greenhouse production; Panicum coloratum; crop yield; Texas
Abstract:
... Early spring applications of herbicides were evaluated for weed control and phytotoxicity to kleingrass (Panicum coloratum L.) during establishment. In 1986, areas treated with MSMA (monosodium salt of methylarsonic acid) at 2.2 and 4.5 kg ha⁻¹ or chlorsulfuron [ 2-chloro-N-[ [(4-methoxy-6-methyl-1,3,5-triazin-2-yl) amino] carbonyl] benzenesulfonamide] at 0.018 and 0.035 kg ha⁻¹ reduced weed yield ...
DOI:
10.2134/agronj1991.00021962008300040012x

41. Source‐Sink Carbon Relations in Two Panicum Coloratum Ecotypes in Response to Herbivory

Author:
M. I. Dyer; M. A. Acra; G. M. Wang; D. C. Coleman; D. W. Freckman; S. J. McNaughton; B. R. Strain
Source:
Ecology 1991 v.72 no.4 pp. 1472-1483
ISSN:
0012-9658
Subject:
C4 plants; Melanoplus sanguinipes; Panicum coloratum; Schistocerca americana; belowground biomass; carbon; carbon dioxide; defoliation; ecotypes; evolution; grasses; grasshoppers; grasslands; grazing intensity; habitats; harvesting; herbivores; leaves; models; phloem; regrowth; roots; stems
Abstract:
... Population samples of an African C₄ grass, Panicum coloratum L., were collected from two locations in the Serengeti Grasslands varying in grazing intensity, one a high—grazing location (GA = grazing—adapted), the other a low—grazing location (NGA = nongrazing—adapted). Plants were cloned, put in controlled environments mimicking the natural photo—thermoperiod, and subjected to light grazing pressu ...
DOI:
10.2307/1941120

42. Tray System for Measuring Drought Tolerance of Forage Grasses

Author:
C. R. Tischler; P. W. Voight; B. A. Young
Source:
Crop science 1991 v.31 no.6 pp. 1696-1699
ISSN:
0011-183X
Subject:
Eragrostis curvula; Panicum coloratum; introduced species; hybrids; screening; drought tolerance; measurement; germplasm; apomixis; forage crops; genotype
Abstract:
... A soil-tray system used in conjunction with a growth chamber was evaluated and used to determine drought tolerance of hybrids of Eragrostis curvula var. confera Nees (boer lovegrass, 57-4-69) ✕ E. curvula (Schrad.) Nees (common weeping lovegrass) and Plant Introductions (PIs) of kleingrass (Panicum coloratum L.). The stress endpoint was based on a predetermined threshold gravimetric water loss. Re ...
DOI:
10.2135/cropsci1991.0011183X003100060065x

43. Morphological Development of Switchgrass and Kleingrass

Author:
Matt A. Sanderson
Source:
Agronomy journal 1992 v.84 no.3 pp. 415-419
ISSN:
0002-1962
Subject:
Panicum virgatum; Panicum coloratum; developmental stages; plant organs; Texas
Abstract:
... Accurate and precise measurements of plant maturity are essential in research involving perennial warm-season grasses. The objective of this study was to devise and refine such an index for use with determinate and indeterminate flowering warm-season perennial grasses. An index of 35 separate stages distributed among three major developmental events (leaf, stem, and reproductive development) was d ...
DOI:
10.2134/agronj1992.00021962008400030013x

44. Logistic Response of Bermudagrass and Bunchgrass Cultivars to Applied Nitrogen

Author:
A. R. Overman; M. A. Sanderson; R. M. Jones
Source:
Agronomy journal 1993 v.85 no.3 pp. 541-545
ISSN:
0002-1962
Subject:
interspecific variation; cultivars; mathematical models; forage crops; Panicum coloratum; application rate; soil water content; Cynodon dactylon; arid zones; dry matter accumulation; crop yield; rain; growth models; Eragrostis curvula; Cenchrus ciliaris; nitrogen fertilizers; Texas
Abstract:
... Models provide a quantitative means to evaluate yield response of forage grasses to applied N and water availability. The objective of this analysis was to estimate model parameters (A, b, c) for bermu. dagrasses and bunchgrasses grown at the same location and during the same time period. The logistic equation was used to relate annual dry matter production to applied N for three bermudagrasses [C ...
DOI:
10.2134/agronj1993.00021962008500030004x

45. Measuring Heterotroph‐Induced Source‐Sink Relationships in Panicum Coloratum with ^1^1C Technology

Author:
M. I. Dyer; D. C. Coleman; D. W. Freckman; S. J. McNaughton
Source:
Ecological applications 1993 v.3 no.4 pp. 654-665
ISSN:
1051-0761
Subject:
Nematoda; Panicum coloratum; carbon; carbon sinks; databases; ecotypes; grasses; grasshoppers; grasslands; grazing; heterotrophs; leaves; models; principal component analysis; roots; source-sink relationships; starch; stems; variance; Africa
Abstract:
... We report a synthesis from three series of experiments on source‐sink relationships in Panicum coloratum L., a C"4 tropical grass obtained from the Serengeti grasslands of Africa. Studies on ^1^1C real‐time analyses of P. coloratum to determine aboveground effects of grasshopper grazing and belowground effects of mycorrhizal inoculation and nematode feeding provided the database. A series of multi ...
DOI:
10.2307/1942098

46. Registration of TEM-LD1 Kleingrass germplasm

Author:
Young, B.A.; Tischler, C.R.; Ocumpaugh, W.R.
Source:
Crop science 1993 v.33 no.1 pp. 219
ISSN:
0011-183X
Subject:
Panicum coloratum; germplasm releases; Texas
DOI:
10.2135/cropsci1993.0011183X003300010067x

47. Registration of TEM-SR1 Kleingrass germplasm

Author:
Young, B.A.
Source:
Crop science 1993 v.33 no.6 pp. 1423
ISSN:
0011-183X
Subject:
Panicum coloratum; germplasm releases; seed shattering; genetic resistance; agronomic traits; Texas
DOI:
10.2135/cropsci1993.0011183X003300060087x

48. Oil Treatment and Digestion Depresses Germination of Grass Seed

Author:
W. R. Ocumpaugh; D. H. D. Swakon; C. R. Tischler; L. S. Valle
Source:
Crop science 1994 v.34 no.5 pp. 1319-1323
ISSN:
0011-183X
Subject:
Panicum coloratum; Panicum virgatum; Zea mays; seed dressings; seed germination; phosphatidylcholines; digestion; secondary metabolites
Abstract:
... Numerous grasses, including Panicum spp., produce seed that survive passage through the digestive system of livestock and germinate in the feces. Managing livestock to distribute viable seed of desirable plants is a means of revegetating degraded grasslands. Potential germination of grass seeds declines with increased resident time in the gastrointestinal tract. Loss of seed germinability with inc ...
DOI:
10.2135/cropsci1994.0011183X003400050033x

49. Registration of TEM-SV1 Kleingrass germplasm

Author:
Young, B.A.; Tischler, C.R.
Source:
Crop science 1994 v.34 no.5 pp. 1414
ISSN:
0011-183X
Subject:
germplasm releases; Panicum coloratum; heat tolerance; agronomic traits; parentage; Texas
DOI:
10.2135/cropsci1994.0011183X003400050063x

50. Modifying Seedling Photomorphogenesis in Kleingrass by Recurrent Selection

Author:
C. R. Tischler; P. W. Voigt
Source:
Crop science 1995 v.35 no.6 pp. 1613-1617
ISSN:
0011-183X
Subject:
Panicum coloratum; seedlings; plant breeding; recurrent selection; morphogenesis; phytochrome; light; internodes; height; shoots; adventitious roots; population
Abstract:
... In emerging Panicoid grass seedlings, elongation of the subcoleoptile internode (SCI) stops shortly after the coleoptile tip receives a red light stimulus. This results in final placement of the crown node (CN) near the soil surface. Because adventitious roots originate from the CN, excessive elongation of the SCI places the CN above the soil surface, adversely impacting seedling establishment. A ...
DOI:
10.2135/cropsci1995.0011183X003500060016x