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1. Crop production comparison under various irrigation systems

Author:
Colaizzi, P.D.; Lamm, F.R.; Howell, T.A.; Evett, S.R.
Source:
Proceedings for the 2006 Central Plains Irrigation Conference, Colby, Kansas, Feb 21-22 pp. -
Subject:
Helianthus annuus; subsurface irrigation; Gossypium hirsutum; grain yield; Triticum aestivum; Zea mays; Glycine max; corn; center pivot irrigation; irrigated farming; winter wheat; cotton; grain sorghum; soybeans; microirrigation; irrigation rates; Sorghum bicolor; Kansas; Texas
Handle:
10113/2980

2. The “Donnan Theory” in Development of Plant Growth Media from Ion-Exchange Resins

Author:
Earl O. Skogley
Source:
Agronomy journal 1969 v.61 no.2 pp. 317-322
ISSN:
0002-1962
Subject:
Helianthus annuus; Solanum lycopersicum var. lycopersicum; Triticum aestivum; agronomy; carbonates; cations; ion exchange; nutrient content; plant growth; tomatoes; wheat
Abstract:
... Synthetic ion-exchange resins were prepared to serve as plant growth media. The resin was considered as an exchanger phase present for the purpose of controlling the solution phase composition within a range known to be satisfactory for plant growth. The “Donnan Theory”, an assumed Ca⁺⁺ concentration of the solution phase based on the carbonate equilibrium, and known desirable solution phase conce ...
DOI:
10.2134/agronj1969.00021962006100020042x

3. Tillage Effects on Wheat and Sunflower Grown in Rotation

Author:
Paul W. Unger
Source:
Soil Science Society of America journal 1981 v.45 no.5 pp. 941-945
ISSN:
0361-5995
Subject:
Helianthus annuus; Sorghum bicolor; Triticum aestivum; arid lands; continuous cropping; crop rotation; cropping sequence; crops; discing; fallow; grain sorghum; grain yield; irrigation; no-tillage; planting; residual effects; seed yield; soil water; soil water content; soil water storage; sunflower seed; wheat; Great Plains region
Abstract:
... Methods of fallowing commonly used in the Southern Great Plains are relatively ineffective for increasing soil water contents, and subsequent crop yields on a total area basis are less with fallow than with continuous cropping. Consequently, improved cropping practices are needed that increase soil water storage during fallow or that decrease the total time devoted to fallow in a cropping sequence ...
DOI:
10.2136/sssaj1981.03615995004500050024x

4. Drying Method Effect on Leaf Chemical Constituents of Four Crop Species

Author:
J. A. Heberer; F. E. Below; R. H. Hageman
Source:
Crop science 1985 v.25 no.6 pp. 1117-1119
ISSN:
0011-183X
Subject:
Zea mays; Glycine max; Triticum aestivum; Helianthus annuus; drying; nitrate nitrogen; phosphorus; chemical constituents of plants
Abstract:
... Method of drying is known to influence chemical composition of plant tissue. The purpose of this study was to compare the effect of air- and oven-drying with freeze-drying on subsequent recovery of various chemical constituents of leaves of greenhouse grown maize (Zea mays L.), soybean (Glycine max [L.] Merr.), wheat (Triticum aestivum L.), and sunflower (Helianthus annuus L.). For all species, le ...
DOI:
10.2135/cropsci1985.0011183X002500060053x

5. Hydrogen-isotope composition of leaf water in C3 and C4 plants: its relationship to the hydrogen-isotope composition of dry matter

Author:
Leaney, F.W.; Osmond, C.B.; Allison, G.B.; Ziegler, H.
Source:
Planta 1985 v.164 no.2 pp. 215-220
ISSN:
0032-0935
Subject:
Helianthus annuus; isotopes; Amaranthus caudatus; Megathyrsus maximus; Triticum aestivum; hydrogen
DOI:
10.1007/BF00396084
PubMed:
24249563

6. Evaluating Ten Cropping Alternatives for the Midsouth

Author:
J. O. Sanford; B. R. Eddleman; S. R. Spurlock; J. E. Hairston
Source:
Agronomy journal 1986 v.78 no.5 pp. 875-880
ISSN:
0002-1962
Subject:
Zea mays; Helianthus annuus; Glycine max; economic analysis; farm income; crop yield; Triticum aestivum; Sorghum bicolor; continuous cropping; double cropping; farm size; Mississippi
Abstract:
... Many crop production systems and cropping sequences are available in the Midsouth and each differs in its management and potential contribution to net farm income. This paper considers several of these variables using yields and costs of production data from a 3-yr crop production study in Mississippi. A nonirrigated experiment was conducted on Leeper silty clay (fine montmorillonitic, nonacid, th ...
DOI:
10.2134/agronj1986.00021962007800050026x

7. Contaminant Transport in Agroecosystems through Retention of Soil Particles on Plant Surfaces

Author:
J.E. Pinder; K.W. McLeod
Source:
Journal of environmental quality 1988 v.17 no.4 pp. 602-607
ISSN:
0047-2425
Subject:
Glycine max; Helianthus annuus; Triticum aestivum; Zea mays; agroecosystems; corn; crops; heavy metals; hydrophobicity; plutonium; pollutants; radionuclides; soil; soil pollution; soil-plant interactions; soybeans; spatial distribution; tissue distribution; vegetation; wheat
Abstract:
... The contamination of plant surfaces with soil particles is a potentially important process in the transport of insoluble contaminants such as radionuclides, heavy metals, and hydrophobic organics in agroecosystems, but few data are available to assess the significance of this mechanism for different crop species. The mass of soil particles retained on the surfaces of corn (Zea mays L.) and sunflow ...
DOI:
10.2134/jeq1988.00472425001700040014x

8. The stimulating effect of a cold, dark pretreatment on the etioplast/chloroplast transformation of angiosperms. I. The stimulating effect of cold predarkening on different stages of greening under white light

Author:
Ekkehard Schönbohm; Ulrich Stute; Peter Thienhaus; Ulrike Werner
Source:
Physiologia plantarum 1988 v.72 no.3 pp. 541-546
ISSN:
0031-9317
Subject:
Helianthus annuus; Leuciscus idus; Momordica charantia; Phaseolus coccineus subsp. coccineus; Triticum aestivum; chlorophyll; cold; cotyledons; etiolation; flowers; leaves; phytochrome; protochlorophyll; seedlings; temperature; wheat; white light
Abstract:
... Schönbohm, E., Stute, U., Thienhaus, P. and Werner, U. 1988. The stimulating effect of a cold, dark pretreatment on the etioplast/chloroplast transformation of angiosperms I. The stimulating effect of cold predarkening on different stages of greening under white light. ‐ Physiol. Plant. 72: 541–546. The etioplast/chloroplast transformation in angiosperms is controlled by light; most of the process ...
DOI:
10.1111/j.1399-3054.1988.tb09163.x

9. Plant growth analysis: the variability of relative growth rate within a sample

Author:
Causton, D.R.
Source:
Annals of botany 1991 v.67 no.2 pp. 137-144
ISSN:
0305-7364
Subject:
Brassica oleracea var. gemmifera; Helianthus annuus; Solanum lycopersicum var. lycopersicum; Triticum aestivum; analysis of variance
Abstract:
... There is indirect evidence in the literature that, when calculated by the classical method of growth analysis involving unrestricted random pairing of replicate plants between two harvests, the within-sample variability of mean relative growth rate is greater than it should be. An experiment is described in which two parallel batches of plants, each of four species, were grown in solution culture. ...
DOI:
10.1093/oxfordjournals.aob.a088112

10. Cropping rotations: effect on aggregate stability and biological activity

Author:
Arrigo, N.M.; Palma, R.M.; Conti, M.E.; Costantini, A.O.
Source:
Communications in soil science and plant analysis 1993 v.24 no.17/18 pp. 2441-2453
ISSN:
0010-3624
Subject:
Triticum aestivum; Glycine max; Zea mays; Helianthus annuus; crop rotation; biological activity in soil; bulk density; soil organic matter; carbon; soil aggregates
DOI:
10.1080/00103629309368966

11. Plant growth analysis: a note on the variability of unit leaf rate (net assimilation rate) within a sample

Author:
Causton, D.R.
Source:
Annals of botany 1994 v.74 no.5 pp. 513-518
ISSN:
0305-7364
Subject:
Brassica oleracea var. gemmifera; Helianthus annuus; Solanum lycopersicum var. lycopersicum; Triticum aestivum; leaves; photosynthesis; net assimilation rate; statistical analysis
Abstract:
... Previously it has been established that when mean relative growth rate (RGR) is estimated from growth data by the classical method of growth analysis, the computed variance of RGR is probably greater than it should be. By similar procedures, it is now demonstrated that the same is true of unit leaf rate (ULR). The experimental results indicate that the coefficients of variation of both RGR and ULR ...
DOI:
10.1006/anbo.1994.1148

12. An appraisal of soil phosphorus testing data for crops and pastures in South Australia

Author:
Reuter, D.J.; Dyson, C.B.; Elliott, D.E.; Lewis, D.C.; Rudd, C.L.
Source:
Animal production science 1995 v.35 no.7 pp. 979-995
ISSN:
0816-1089
Subject:
phosphorus; soil fertility; soil analysis; Triticum aestivum; Hordeum vulgare; Brassica; Helianthus annuus; Pisum sativum; Vicia faba; Solanum tuberosum; phosphorus fertilizers; application methods; soil types; fertilizer requirements; South Australia
DOI:
10.1071/EA9950979

13. Long-Term Tillage, Crop Rotation, and Nitrogen Fertilizer Effects on Wheat Yield under Rainfed Mediterranean Conditions

Author:
L. López-Bellido; M. Fuentes; J. E. Castillo; F. J. López-Garrido; E. J. Fernández
Source:
Agronomy journal 1996 v.88 no.5 pp. 783-791
ISSN:
0002-1962
Subject:
Vicia faba; Helianthus annuus; no-tillage; Vertisols; fallow; crop yield; dryland farming; Triticum aestivum; rain; seasonal variation; continuous cropping; Cicer arietinum; crop rotation; application rate; Mediterranean climate; nitrogen fertilizers; Spain
Abstract:
... The combined long-term effects of tillage method and crop rotation on crop yield have not been studied in rainfed systems under Mediterranean climates. A field study was conducted from 1988 to 1994 to determine the effects of tillage (TILL), crop rotation (ROT) N fertilizer on wheat (Triticura aestivum L.) yield in a rainfed Mediterranean region. Tillage treatments include no tillage (NT) and conv ...
DOI:
10.2134/agronj1996.00021962008800050016x

14. Spectral Properties of Leaves Deficient in Iron, Sulfur, Magnesium, and Manganese

Author:
Alessandro Masoni; Laura Ercoli; Marco Mariotti
Source:
Agronomy journal 1996 v.88 no.6 pp. 937-943
ISSN:
0002-1962
Subject:
manganese; Zea mays; Helianthus annuus; sulfur; chlorophyll; transmittance; Hordeum vulgare; nutrient deficiencies; iron; magnesium; Triticum aestivum; reflectance; light; detection; leaves
Abstract:
... In crop plants, deficiency of an essential element may drastically reduce growth rate and yield. Research on the use of leaf spectral properties in the detection of crop mineral deficiency is needed. The objective of this study was to examine the effects of Fe, S, Mg, and Mn deficiency on reflectance (R), absorptance (A), and transmittance (T) spectra of barley (Hordeum vulgare L.), wheat (Triticu ...
DOI:
10.2134/agronj1996.00021962003600060015x

15. Carboxyarabinitol 1-phosphate phosphatase from leaves of Phaseolus vulgaris and other species

Author:
Charlet, T.; Moore, B.d.; Seemann, J.R.
Source:
Plant & cell physiology 1997 v.38 no.5 pp. 511-517
ISSN:
0032-0781
Subject:
arabinitol; Helianthus annuus; phosphoric monoester hydrolases; Alocasia macrorrhizos; Solanum tuberosum; Phaseolus vulgaris; Triticum aestivum; phosphates; photosynthesis; protein composition; leaves; Arabidopsis thaliana; enzyme activity; Beta vulgaris; Solanum lycopersicum var. lycopersicum; ribulose-bisphosphate carboxylase; Spinacia oleracea; Megathyrsus maximus; physicochemical properties; binding sites
Abstract:
... Carboxyarabinitol 1-phosphate (CA1P) phosphatase activity occurred in leaves of 10 species examined, with the highest activity in leaves of Phaseolus vulgaris. Enzyme was purified from P. vulgaris 1,580-fold to a final specific activity of 6.1 micromoles min-1 (mg protein)-1. Structural characteristics of positive effectors and substrate analogs for the CA1P phosphatase reaction were examined. Pos ...
DOI:
10.1093/oxfordjournals.pcp.a029198

16. Crop Rotation and Tillage Effects on Phosphorus Distribution in the Central Great Plains

Author:
R. A. Bowman; A. D. Halvorson
Source:
Soil Science Society of America journal 1997 v.61 no.5 pp. 1418-1422
ISSN:
0361-5995
Subject:
Zea mays; Helianthus annuus; no-tillage; Panicum miliaceum; conventional tillage; nutrient availability; crop residues; reduced tillage; fallow; intensive cropping; Phaseolus vulgaris; Triticum aestivum; continuous cropping; phosphorus; crop rotation; biogeochemical cycles; Colorado
Abstract:
... The fate and availability of soil P in the central Great Plains may become less predictable with less tillage and more intensive crop rotations that produce more crop residue and litter than conventional-till (CT) wheat (Triticum aestivum L.)-fallow (W-F). We need to evaluate these new systems relative to new P distribution patterns that may be occurring. We determined P changes in a Weld silt loa ...
DOI:
10.2136/sssaj1997.03615995006100050020x

17. Estimation of the cell-cycle duration in the root apical meristem: a model of linkage between cell-cycle duration, rate of cell production, and rate of root growth

Author:
Ivanov, V.B.; Dubrovsky, J.G.
Source:
International journal of plant sciences 1997 v.158 no.6 pp. 757-763
ISSN:
1058-5893
Subject:
mathematical models; Vicia faba; Helianthus annuus; cultivars; cell growth; cell division; Phalaris minor; root meristems; Triticum aestivum; Fagopyrum; Pisum sativum; Phalaris canariensis
DOI:
10.1086/297487

18. Importance of the chiral centers of jasmonic acid in the responses of plants. Activities and antagonism between natural and synthetic analogs

Author:
Holbrook, L.; Tung, P.; Ward, K.; Reid, D.M.; Abrams, S.; Lamb, N.; Quail, J.W.; Moloney, M.M.
Source:
Plant physiology 1997 v.114 no.2 pp. 419-428
ISSN:
0032-0889
Subject:
Helianthus annuus; Brassica napus; measurement; chemical degradation; dose response; jasmonic acid; gene expression; Triticum aestivum; Nicotiana tabacum; esters; stereochemistry; enzyme activity; chemical structure; seed germination; transgenic plants; cotyledons; proteinase inhibitors; reporter genes; chemical constituents of plants; chlorophyll; beta-glucuronidase
Abstract:
... The importance of the two chiral centers at C-3 and C-7 in the molecular structure of jasmonic acid in plant responses was investigated. We separated methyl jasmonate (MeJA) into (3R)- and (3S)-isomers with a fixed stereochemistry at C-3, but epimerization at C-7 is possible. The four isomers of the nonepimerizable analog 7-methyl MeJA were synthesized. These six esters and their corresponding aci ...

19. Organic matter, microbial biomass and enzyme activity of soils under different crop rotations in the tropics

Author:
Chander, K.; Goyal, S.; Mundra, M.C.; Kapoor, K.K.
Source:
Biology and fertility of soils 1997 v.24 no.3 pp. 306-310
ISSN:
0178-2762
Subject:
Pennisetum glaucum; Vigna unguiculata; Triticum aestivum; fallow; Solanum tuberosum; Solanum lycopersicum var. lycopersicum; Helianthus annuus; Brassica juncea; crop rotation; Sesbania bispinosa; green manures; soil microorganisms; biomass; microbial activity; biological activity in soil; carbon; mineralization; soil enzymes; oxidoreductases; alkaline phosphatase; tropics; India
Abstract:
... Soil organic matter level, soil microbial biomass C, ninhydrin-N, C mineralization, and dehydrogenase and alkaline phosphatase activity were studied in soils under different crop rotations for 6 years. Inclusion of a green manure crop of Sesbania aculeata in the rotation improved soil organic matter status and led to an increase in soil microbial biomass, soil enzyme activity and soil respiratory ...
DOI:
10.1007/s003740050248

20. Phytotoxicity and Plant Uptake of Fuel Oil Hydrocarbons

Author:
C. H. Chaîneau; J. L. Morel; J. Oudot
Source:
Journal of environmental quality 1997 v.26 no.6 pp. 1478-1483
ISSN:
0047-2425
Subject:
Helianthus annuus; Hordeum vulgare; Lactuca sativa; Phaseolus vulgaris; Trifolium repens; Triticum aestivum; Zea mays; aboveground biomass; aromatic compounds; barley; beans; chemical structure; corn; fuel oils; gas chromatography; hydrocarbons; leaves; lethal concentration 50; lettuce; phytotoxicity; plant growth; polluted soils; seed germination; stems; wheat
Abstract:
... The phytotoxicity and phytoavailability of hydrocarbons (HC) were studied in soils artificially contaminated with fuel oil. The presence of HC in the soil inhibited seed germination and reduced plant growth. The germination and development of cultivated plants varied with the chemical structure of HC, the HC concentration in soil, and the plant species. The LC₅₀ values for germination after 8 d in ...
DOI:
10.2134/jeq1997.00472425002600060005x

21. Production of rainfed and irrigated crops under different crop rotations and input levels in southwestern France

Author:
Debaeke, P.; Hilaire, A.
Source:
Canadian journal of plant science 1997 v.77 no.4 pp. 539-548
ISSN:
0008-4220
Subject:
planting date; Helianthus annuus; plant density; Pisum sativum; application rate; irrigation; Triticum aestivum; crop production; Vicia faba; Zea mays; Glycine max; silty soils; Hordeum; Brassica napus var. napus; crop rotation; pesticides; nitrogen fertilizers; potassium fertilizers; clay soils; phosphorus fertilizers; Sorghum bicolor; France
DOI:
10.4141/P96-089

22. Southeastern North Dakota Landsat TM Crop Mapping Project

Author:
Cook, Paul W.; Mueller, Rick; Doraiswamy, Paul
Source:
Technical papers / ACSM/ASPRS Annual Convention & Exposition 1997 pp. -
Subject:
remote sensing; Landsat; thematic maps; Triticum aestivum; spring wheat; multispectral imagery; Zea mays; corn; Phaseolus vulgaris; Glycine max; soybeans; Helianthus annuus; North Dakota
Abstract:
... The purpose of this project was to establish a crop specific classification for a group of counties in Southeastern North Dakota. Landsat TM data (from May, June, July, and September 1994) provided 24 bands of multi spectral information (the thermal bands were not used). Extending this crop classification throughout North Dakota using AVHRR data and developing relationships to spring wheat yield a ...
Handle:
10113/33215

23. Tracer and Nitrate Movement to Groundwater in the Northern Great Plains

Author:
W. M. Schuh; D. L. Klinkebiel; J. C. Gardner; R. F. Meyer
Source:
Journal of environmental quality 1997 v.26 no.5 pp. 1335-1347
ISSN:
0047-2425
Subject:
Glycine max; Helianthus annuus; Triticum aestivum; aquifers; arid lands; dryland farming; glacial till; glacial till soils; groundwater; nitrate fertilizers; nitrate nitrogen; nitrates; rain; rhizosphere; solutes; soybeans; storms; summer; tracer techniques; vadose zone; water table; wheat; Great Plains region
Abstract:
... An experiment was conducted to study the movement of surface-applied tracers and fertilizer to groundwater on an agricultural field under dryland farming practices. Movement of surface-applied bromide, chloride, and fluoride tracers, and fertilizer nitrate (NO₃) through a coarse-loamy glacial till soil and vadose zone to saturated glacial till at about 3 to 4 m, and to a confined aquifer at 6.8 m, ...
DOI:
10.2134/jeq1997.00472425002600050020x

24. The gradient between pre-dawn rhizoplane and bulk soil matric potentials, and its relation to the pre-dawn root and leaf water potentials of four species

Author:
Schmidhalter, U.
Source:
Plant, cell and environment 1997 v.20 no.7 pp. 953-960
ISSN:
0140-7791
Subject:
interspecific variation; Zea mays; Helianthus annuus; Hordeum vulgare; seedlings; soil; leaf water potential; dry matter accumulation; Triticum aestivum; rhizoplane; roots; root water potential; shoots
Abstract:
... Uptake of soil water by plants may result in significant gradients between bulk soil and soil in the vicinity of roots. Few experimental studies of water potential gradients in close proximity to roots, and no studies on the relationship of water potential gradients to the root and leaf water potentials, have been conducted. The occurrence and importance of pre-dawn gradients in the soil and their ...
DOI:
10.1046/j.1365-3040.1997.d01-136.x

25. Comparing the adaptation of sunola, canola and mustard to three soil climatic zones of the Canadian prairies

Author:
Miller, P.R.; Johnston, A.M.; Brandt, S.A.; McDonald, C.L.; Derksen, D.A.; Waddington, J.
Source:
Canadian journal of plant science 1998 v.78 no.4 pp. 565-570
ISSN:
0008-4220
Subject:
climatic zones; planting date; Helianthus annuus; no-tillage; water use efficiency; crop residues; fallow; Brassica juncea; oilseeds; agronomic traits; crop yield; Triticum aestivum; seed productivity; Brassica napus; Brassica rapa subsp. oleifera; heat sums; Saskatchewan
DOI:
10.4141/P97-153

26. Effects of humidity on short-term responses of stomatal conductance to an increase in carbon dioxide concentration

Author:
Bunce, J.A.
Source:
Plant, cell and environment 1998 v.21 no.1 pp. 115-120
ISSN:
0140-7791
Subject:
carbon dioxide; Glycine max; stomatal conductance; pressure; Helianthus annuus; Hordeum vulgare; humidity; Triticum aestivum; Amaranthus retroflexus; petioles; abscisic acid; temperature; water vapor; Maryland
Abstract:
... The magnitude of the response of stomatal conductance to a change in the concentration of carbon dioxide external to the leaf from 350 to 700 cm3 m-3 was found to be extremely variable from day to day in the field in Glycine max, Hordeum vulgare and Triticum aestivum. It was found that the leaf-to-air water vapour pressure difference (LAVPD) during the midday measurements of the stomatal response ...
DOI:
10.1046/j.1365-3040.1998.00253.x

27. Analysis of Seed Growth by Linear Increase in Harvest Index

Author:
M. Bindi; T. R. Sinclair; J. Harrison
Source:
Crop science 1999 v.39 no.2 pp. 486-493
ISSN:
0011-183X
Subject:
harvest date; interspecific variation; simulation models; Helianthus annuus; Glycine max; seeds; Triticum aestivum; harvest index; statistical analysis; Pisum sativum
Abstract:
... A convenient and stable method for expressing crop seed growth is important both in experimental and simulation studies. The conventional approach has been to measure the seed growth rate (SGR) of individual seeds and multiply this by the number of seeds per unit ground area. An alternative to measurements of SGR has emerged from the observation that during seed growth, harvest index (HI) increase ...
DOI:
10.2135/cropsci1999.0011183X0039000200031x

28. Dryland Winter Wheat Response to Tillage and Nitrogen within an Annual Cropping System

Author:
Ardell D. Halvorson; Alfred L. Black; Joseph M. Krupinsky; Stephen D. Merrill
Source:
Agronomy journal 1999 v.91 no.4 pp. 702-707
ISSN:
0002-1962
Subject:
Helianthus annuus; Triticum aestivum; agronomy; arid lands; conventional tillage; crop rotation; cultivars; disease incidence; fertilizer rates; grain yield; leaf spot; minimum tillage; nitrogen; nitrogen fertilizers; no-tillage; plant available water; spring; winter wheat; winterkill; Great Plains region
Abstract:
... Winter wheat (Triticum aestivum L.) can add diversity to dryland crop rotations in the northern Great Plains, but it is susceptible to winterkill in low surface residue environments. A 12-year study was conducted to determine the response of two winter wheat cultivars, Roughrider and Norstar, to tillage system (conventional-till, CT; minimum-till, MT: and no-till, NT) and N fertilizer rate (34, 67 ...
DOI:
10.2134/agronj1999.914702x

29. Effect of phosphorus fertilization on Zn and Cd contents in soil and corn plants

Author:
Bogdanovic, D.; Ubavic, M.; Cuvardic, M.
Source:
Nutrient cycling in agroecosystems 1999 v.54 no.1 pp. 49-56
ISSN:
1385-1314
Subject:
Zea mays; Helianthus annuus; crop rotation; zinc; nutrient-nutrient interactions; nutrient availability; phosphorus fertilizers; cadmium; nutrient uptake; Triticum aestivum; soil fertility; field experimentation; phosphorus; mineral content; application rate; Beta vulgaris; Serbia and Montenegro
Abstract:
... The main purpose of the trial established in 1965/66 has been to monitor the effect the use of NPK fertilizers has on yields of cultivated plants and the maintenance of soil fertility. The trial which included 20 fertilization treatments, covers a total of 8 ha and is divided into four fields (2 ha each), where four crop species (wheat, corn, sugar beet, and sunflower) are grown in rotation. The e ...

30. Water Use and Yield of Dryland Row Crops as Affected by Tillage

Author:
Charles A. Norwood
Source:
Agronomy journal 1999 v.91 no.1 pp. 108-115
ISSN:
0002-1962
Subject:
Zea mays; Helianthus annuus; Glycine max; evapotranspiration; soil water content; water use efficiency; air temperature; drought tolerance; drought; crop yield; dryland farming; Triticum aestivum; Sorghum bicolor; conservation tillage; crop rotation
Abstract:
... The dryland winter wheat (Triticum aestivum L.)-grain sorghum [Sorghum bicolor (L.) Moench]-fallow rotation is suitable for large areas of the U.S. Great Plains. High temperatures and potential evapotranspiration limit the number of other crops that can be grown. Sunflower (Helianthus annuus L.) is drought tolerant, but crops such as corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] are perc ...
DOI:
10.2134/agronj1999.00021962009100010017x

31. Water retention capacity in root segments differing in the degree of exodermis development

Author:
Taleisnik, E.; Peyrano, G.; Cordoba, A.; Arias, C.
Source:
Annals of botany 1999 v.83 no.1 pp. 19-27
ISSN:
0305-7364
Subject:
interspecific variation; Zea mays; Helianthus annuus; Vicia faba; plant development; rhizosphere; thickness; Allium cepa; water stress; Triticum aestivum; water content; Sorghum bicolor; water holding capacity; Pisum sativum; roots; Chloris gayana; permeability
Abstract:
... Water loss from roots back into drying soil is a problem of practical importance in plants growing under conditions of very low substrate water potential, such as dry or saline areas. Root exodermis is relatively impermeable and has been suggested to play a protective role against water loss. The relative water retention ability was compared in root segments from exodermal (maize, onion, sunflower ...
DOI:
10.1006/anbo.1998.0781

32. Characterization of thiamin-binding protein from wheat germ

Author:
Adachi, T.; Watanabe, K.; Mitsunaga, T.
Source:
Cereal chemistry 2000 v.77 no.5 pp. 578-581
ISSN:
0009-0352
Subject:
Helianthus annuus; Triticum aestivum; arginine; buckwheat; cysteine; dissociation; glutamic acid; glutamine; methionine; molecular weight; pH; phosphates; rice; seeds; thiamin; tryptophan; tyrosine; wheat germ
Abstract:
... A thiamin-binding protein was isolated from wheat germ (Triticum aestivum). Its molecular mass was estimated as 120,000 Da consisting of two 56,000-subunits. The protein contained a large amount of glutamine or glutamic acid (15.4 mol%), arginine (12.5 mol%), and glycine (12.0 mol%). The levels of tyrosine, methionine, tryptophan, and cysteine in the protein were low. Optimum pH for its thiamin-bi ...
DOI:
10.1094/CCHEM.2000.77.5.578

33. Crop Rotations and Nitrogen Fertilization to Manage Soil Organic Carbon Dynamics

Author:
Guillermo A. Studdert; Hernán E. Echeverr ı ´ a
Source:
Soil Science Society of America journal 2000 v.64 no.4 pp. 1496-1503
ISSN:
0361-5995
Subject:
Argiudolls; Glycine max; Helianthus annuus; Paleudolls; Triticum aestivum; Zea mays; conventional tillage; corn; crop rotation; crops; fertilizer application; nitrogen; nitrogen fertilizers; production technology; soil organic carbon; soybeans; spring wheat; summer; Argentina
Abstract:
... Sustainability is influenced in many production systems by the variation of soil organic C (SOC) content and dynamics, and crop rotations. We hypothesized that arable layer SOC under conventional tillage can be managed through the amount of residue C (RC) returned to the soil as affected by tillage and fertilization. Soil organic C dynamics of a complex of Typic Argiudoll and Petrocalcic Paleudoll ...
DOI:
10.2136/sssaj2000.6441496x

34. Dryland Winter Wheat as Affected by Previous Crops

Author:
Charles A. Norwood
Source:
Agronomy journal 2000 v.92 no.1 pp. 121-127
ISSN:
0002-1962
Subject:
Glycine max; Helianthus annuus; Sorghum bicolor; Triticum aestivum; Zea mays; agronomy; arid lands; conventional tillage; corn; grain sorghum; seeds; soil water; soybeans; winter wheat
Abstract:
... The dryland winter wheat (Triticum aestivum L.)–grain sorghum [Sorghum bicolor (L.) Monech]–fallow (WSF) rotation is suitable for large areas of the U.S. Great Plains. Other crops such as corn (Zea mays L.), sunflower (Helianthus annus L.), and soybean [Glycine max (L.) Merr.] can be substituted for grain sorghum, but the effects of these crops on the subsequent wheat crop have not been extensivel ...
DOI:
10.2134/agronj2000.921121x

35. Effects of Tillage, Crop Rotation, and Nitrogen Fertilization on Wheat under Rainfed Mediterranean Conditions

Author:
Luis López-Bellido; Rafael J. López-Bellido; Juan E. Castillo; Francisco J. López-Bellido
Source:
Agronomy journal 2000 v.92 no.6 pp. 1054-1063
ISSN:
0002-1962
Subject:
Cicer arietinum; Haploxererts; Helianthus annuus; Triticum aestivum; Vicia faba; agronomy; beans; conventional tillage; crop rotation; experimental design; grain yield; long term experiments; nitrogen; nitrogen fertilizers; rain; vegetative growth; wheat; Mediterranean region
Abstract:
... The combined long-term effects of tillage method, crop rotation, and N fertilizer rates on grain yield have not been studied in rainfed systems under Mediterranean climates. As part of a long-term experiment started in 1986, a field study was conducted between 1994 and 1998 to determine the effects of tillage (TILL), crop rotation (ROT), and N fertilization on wheat (Triticum aestivum L.) growth a ...
DOI:
10.2134/agronj2000.9261054x

36. Effects of sunflower on soil quality indicators and subsequent wheat yield

Author:
R. A. Bowman; D. C. Nielsen; M. F. Vigil; R. M. Aiken
Source:
Soil science 2000 v.165 no.6 pp. 516-522
ISSN:
0038-075X
Subject:
Zea mays; Helianthus annuus; Panicum miliaceum; soil organic matter; crop residues; fallow; dryland farming; carbon; Triticum aestivum; crop yield; soil texture; erodibility; grains; crop rotation; soil aggregates; Colorado
Abstract:
... Sunflower (Helianthus annuus L) production has increased in the central Great Plains, but little is known regarding how this crop will affect surface biomass production, various soil quality indicators, and subsequent winter wheat (Triticum aestivum L.) yields. We hypothesized that sunflower production was reducing soil quality relative to other summer crops because of the need for tillage to inco ...
DOI:
10.1097/00010694-200006000-00007

37. Hard Red Spring Wheat Response Following the Intercropping of Legumes into Sunflower

Author:
H.J. Kandel; B.L. Johnson; A.A. Schneiter
Source:
Crop science 2000 v.40 no.3 pp. 731-736
ISSN:
0011-183X
Subject:
Helianthus annuus; Lens culinaris; Medicago sativa; Medicago scutellata; Melilotus officinalis; Triticum aestivum; Vicia villosa; alfalfa; developmental stages; field experimentation; grain yield; hard red spring wheat; intercropping; lentils; nitrate nitrogen; protein content; soil; soil carbon; soil erosion; spring; spring wheat
Abstract:
... Intercropping legumes in sunflower (Helianthus annuus L.) may increase soil cover, reduce soil erosion, and increase soil C and N. Subsequent effects of this practice on hard red spring wheat (HRSW) [Triticum aestivum (L.) Emend. Thell.] yield and protein content were unknown. Our objective was to quantify effects of intercropping various legumes into sunflower on spring soil nitrate-nitrogen (NO⁻ ...
DOI:
10.2135/cropsci2000.403731x

38. Hard red spring wheat response following the intercropping of legumes into sunflower

Author:
Kandel, H.J.; Johnson, B.L.; Schneiter, A.A.
Source:
Crop science 2000 v.40 no.3 pp. 731-736
ISSN:
1435-0653
Subject:
Triticum aestivum; Helianthus annuus; Vicia villosa; Melilotus officinalis; Medicago sativa; Medicago scutellata; intercropping; nitrogen; soil fertility; crop yield; nitrate nitrogen; protein content; North Dakota
Abstract:
... Intercropping legumes in sunflower (Helianthus annuus L.) may increase soil cover, reduce soil erosion, and increase soil C and N. Subsequent effects of this practice on hard red spring wheat (HRSW) [Triticum aestivum (L.) Emend. Thell.] yield and protein content were unknown. Our objective was to quantify effects of intercropping various legumes into sunflower on spring soil nitrate-nitrogen (NO3 ...

39. Selenium-enriched sprouts. A raw material for fortified cereal-based diets

Author:
Lintschinger, J.; Fuchs, N.; Moser, J.; Kuehnelt, D.; Goessler, W.
Source:
Journal of agricultural and food chemistry 2000 v.48 no.11 pp. 5362-5368
ISSN:
0021-8561
Subject:
seed germination; Helianthus annuus; sprouting; Medicago sativa; selenium; chemical speciation; anions; Triticum aestivum; mineral content; selenocysteine
Abstract:
... The selenium supply in almost all European countries, including Austria and Germany, is below the recommended daily intake. In these countries, selenium fortification of foods and the use of selenium supplements are quite popular to compensate for low Se intake from diets. In general, wheat (Triticum aestivum) is known to be a good source for bioavailable selenium, and many studies have been perfo ...
DOI:
10.1021/jf000509d
PubMed:
11087486

40. Incidence of Stenocarpella maydis ear rot of corn under crop rotation systems

Author:
Flett, B.C.; McLaren, N.W.; Wehner, F.C.
Source:
Plant disease 2001 v.85 no.1 pp. 92-94
ISSN:
0191-2917
Subject:
Zea mays; Stenocarpella maydis; Glycine max; seeds; Helianthus annuus; corn ears; stubble; fungal diseases of plants; inoculum density; Triticum aestivum; Arachis hypogaea; conservation tillage; incidence; crop rotation; South Africa
Abstract:
... The efficacy of crop rotation in reducing corn ear rot caused by Stenocarpella maydis in reduced and conventional tillage systems was determined over five and four seasons, respectively, at two sites in South Africa. Stenocarpella ear rot and S. maydis was isolated from kernels more frequently in monoculture corn and crop rotation where corn was planted for two consecutive seasons than where monoc ...
DOI:
10.1094/PDIS.2001.85.1.92

41. Quantification of Grain Yield Response to Soil Depth in Soybean, Maize, Sunflower, and Wheat

Author:
Víctor O. Sadras; Pablo A. Calviño
Source:
Agronomy journal 2001 v.93 no.3 pp. 577-583
ISSN:
0002-1962
Subject:
Glycine max; Helianthus annuus; Triticum aestivum; Zea mays; agronomy; autumn; biomass; corn; evapotranspiration; grain yield; growth habit; harvest index; plasticity; risk analysis; soil depth; soybeans; spring; water use efficiency; wheat
Abstract:
... Risk analysis to identify the more profitable or less risky crops in areas with shallow soil requires quantification of yield responses to physical constraints to root penetration. Grain yield, shoot biomass, and harvest index (HI) were measured in commercial fields of indeterminate soybean (Glycine max L. Merr.), maize (Zea mays L.), sunflower (Helianthus annuus L.), and wheat (Triticum aestivum ...
DOI:
10.2134/agronj2001.933577x

42. Universal RAGE-PCR primers to detect mitochondrial polymorphisms among Magnoliophyta

Author:
Wijnants, L.; Vasseur, J.; Rambaud, C.
Source:
Molecular ecology notes 2001 v.1 no.3 pp. 123-125
ISSN:
1471-8278
Subject:
Arabidopsis thaliana; Cichorium intybus; Zea mays; Helianthus annuus; mitochondrial DNA; DNA primers; polymerase chain reaction; Triticum aestivum; intergenic DNA; genetic polymorphism; Beta vulgaris

43. The adaptation of seven broadleaf crops to the dry semiarid prairie

Author:
Miller, P.R.; McDonald, C.L.; Derksen, D.A.; Waddington, J.
Source:
Canadian journal of plant science 2001 v.81 no.1 pp. 29-43
ISSN:
0008-4220
Subject:
Carthamus tinctorius; Helianthus annuus; nitrogen content; crop rotation; no-tillage; intensive forestry; water use efficiency; Phaseolus vulgaris; plant density; crop yield; natural resource management; Triticum aestivum; soil fertility; field experimentation; Pisum sativum; Cicer arietinum; Lens culinaris; Saskatchewan
DOI:
10.4141/P00-028

44. Active and passive microwave measurements for the characterization of soils and crops

Author:
Macelloni, G.; Paloscia, S.; Pampaloni, P.; Ruisi, R.; Dechambre, M.; Valentin, R.; Chanzy, A.; Wigneron, J.P.
Source:
Agronomy for sustainable development 2002 v.22 no.6 pp. 581-586
ISSN:
0249-5627
Subject:
grasses; canopy; Helianthus annuus; fields; Medicago sativa; wheat; leaf area index; alfalfa; radiometers; soil water; remote sensing; Triticum aestivum; biomass; microwave radiation; France
DOI:
10.1051/agro:2002031

45. Assessing the narrowband to broadband conversion to estimate visible, near infrared and shortwave apparent albedo from airborne PolDER data

Author:
Jacob, F.; Weiss, M.; Olioso, A.; French, A.
Source:
Agronomy for sustainable development 2002 v.22 no.6 pp. 537-546
ISSN:
0249-5627
Subject:
mathematical models; Zea mays; canopy; Helianthus annuus; fields; multispectral imagery; Medicago sativa; corn; wheat; alfalfa; data analysis; Triticum aestivum; wavelengths; remote sensing; albedo (reflectance); France
DOI:
10.1051/agro:2002049

46. Boron requirements for sunflower and wheat

Author:
Asad, A.
Source:
Journal of plant nutrition 2002 v.25 no.4 pp. 885-899
ISSN:
0190-4167
Subject:
interspecific variation; Helianthus annuus; developmental stages; boron; nutrient requirements; Triticum aestivum; application rate; leaves
Abstract:
... Plant species differ in their external and internal boron (B) requirements. The present research was conducted to establish the external and internal B requirements of sunflower (Helianthus annuus) and wheat (Triticum aestivum) at early vegetative growth. At low external B concentrations (less than or equal to 0.13 micromolar), the growth of sunflower was severely depressed but by contrast the veg ...
DOI:
10.1081/PLN-120002967

47. Conversion of 400-1100 nm vegetation albedo measurements into total shortwave broadband albedo using a canopy radiative transfer model

Author:
Francois, C.; Ottle, C.; Olioso, A.; Prevot, L.; Bruguier, N.; Ducros, Y.
Source:
Agronomy for sustainable development 2002 v.22 no.6 pp. 611-618
ISSN:
0249-5627
Subject:
mathematical models; Helianthus annuus; canopy; fields; leaf area index; wheat; data analysis; Triticum aestivum; radiometers; remote sensing; wavelengths; vegetation; albedo (reflectance); France
DOI:
10.1051/agro:2002033

48. Cropping sequence affects wheat productivity on the semiarid northern Great Plains

Author:
Miller, P.R.; Waddington, J.; McDonald, C.L.; Derksen, D.A.
Source:
Canadian journal of plant science 2002 v.82 no.2 pp. 307-318
ISSN:
0008-4220
Subject:
minimum tillage; Carthamus tinctorius; Helianthus annuus; no-tillage; Phaseolus vulgaris; field experimentation; Pisum sativum; Cicer arietinum; Lens culinaris; biogeochemical cycles; nitrogen content; Brassica juncea; Triticum aestivum; soil fertility; yield components; fallow; soil water; crop rotation; nitrogen fertilizers; stubble; semiarid zones; spring wheat; Saskatchewan
DOI:
10.4141/P01-116

49. Diversity and structure of AMF communities as affected by tillage in a temperate soil

Author:
Jansa, J.; Mozafar, A.; Anken, T.; Ruh, R.; Sanders, I.R.; Frossard, E.
Source:
Mycorrhiza 2002 v.12 no.5 pp. 225-234
ISSN:
0940-6360
Subject:
Glomus; Gigaspora; Scutellospora; Acaulospora; mycorrhizal fungi; vesicular arbuscular mycorrhizae; fungal spores; molecular systematics; internal transcribed spacers; ribosomal DNA; sequence analysis; biodiversity; phylogeny; temperate soils; agricultural soils; tillage; host plants; Brassica napus; Triticum aestivum; winter wheat; Zea mays; corn; Glycine max; soybeans; Helianthus annuus; Plantago lanceolata; Allium porrum; leeks; Switzerland
DOI:
10.1007/s00572-002-0163-z
PubMed:
12375133

50. Evaluation of kernel-driven BRDF models for the normalization of Alpilles/ReSeDA POLDER data

Author:
Weiss, M.; Jacob, F.; Baret, F.; Pragnere, A.; Bruchou, C.; Leroy, M.; Hautecceur, O.; Prevot, L.; Bruguier, N.
Source:
Agronomy for sustainable development 2002 v.22 no.6 pp. 531-536
ISSN:
0249-5627
Subject:
Helianthus annuus; remote sensing; canopy; fields; Triticum aestivum; wheat; Medicago sativa; alfalfa; Zea mays; corn; mathematical models; France
DOI:
10.1051/agro:2002037