Search National Agricultural Library Digital Collections

You searched for:

Subjects crop yield Remove constraint crop yield: crop yield Year 2003 Remove constraint 2003: 2003
Displaying items 1 - 10 of 72 start over

1. A delayed flowering barrier to higher soybean yields

Description:
Includes references
Author:
Cooper, R.L.
Subject:
Glycine max , soybeans , crop yield , latitude , light intensity , temperature , solar radiation , growing season , photoperiod , flowering , Ohio
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

2. Above- and below-ground responses of C3-C4 species mixtures to elevated CO2 and soil water availability

Description:
Includes references
Author:
Derner, Justin D. , Johnson, Hyrum , Kimball, Bruce , Pinter, Paul Jr. , Polley, Wayne , Tischler, Charles , Boutton, Thomas , Lamorte, Robert , Wall, Robert , Adam, Neal , Leavitt, Steven W. , Ottman, Michael J. , Matthias, Allan D. , Brooks, Talbot J.
Subject:
C3 plants , Gossypium hirsutum , cotton , C4 plants , Sorghum bicolor , grain sorghum , carbon dioxide , elevated atmospheric gases , soil water , plant available water , plant growth , crop yield , Arizona
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

3. Absence of epistasis for grain yield in elite maize hybrids

Description:
Includes references
Author:
Hinze, L.L. , Lamkey, K.R.
Subject:
Zea mays , crop yield , epistasis , cultivars , inbred lines , simulation models , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

4. Analyzing risk and risk management in cropping systems

Description:
Meeting held August 4-7, 2003, Bismarck, ND.
Author:
Archer, D.W. , Pikul, J.L. Jr. , Riedell, W.E.
Subject:
cropping systems , risk management , stochastic processes , agricultural budgeting , simulation models , risk assessment , case studies , crop yield , profitability , costs and returns , conventional tillage , no-tillage
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

5. Assessment of cropping system effects on soil quality in the Great Plains: introduction

Description:
Includes references
Author:
Varvel, G. , Riedell, W. , Deibert, E. , McConkey, B. , Tanaka, D. , Vigil, M. , Schwartz, R.
Subject:
cropping systems , soil quality , weather , air temperature , precipitation , crop yield , Great Plains region
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

6. Beet curly top virus, insecticides and plant resistance

Description:
Includes references
Author:
Kaffka, S.R. , Lewellen, R.T. , Wintermantel, W.M.
Subject:
Beta vulgaris , sugar beet , Beet curly top virus , plant diseases and disorders , disease transmission , insect vectors , Circulifer tenellus , vector control , imidacloprid , phorate , pesticide application , seed dressings , soil treatment , application rate , disease resistance , cultivars , variety trials , planting date , crop yield , California
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

7. Broad-Sense Heritabilities, Genetic Correlations, and Selection Indices for Sugarcane Borer Resistance and Their Relation to Yield Loss

Description:
Includes references
Author:
Milligan, S.B. , Balzarini, M. , White, W.H.
Subject:
Saccharum officinarum , sugarcane , pest resistance , heritability , genetic correlation , chemical constituents of plants , sucrose , Diatraea saccharalis , insect pests , plant pests , plant-insect relations , crop yield , Louisiana
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

8. Comparison of bulk F2 performance testing and pedigree selection in thirty pima cotton populations

Description:
Includes references
Author:
Percy, R.G.
Subject:
Gossypium barbadense , lint cotton , plant breeding , artificial selection , selection methods , crossing , progeny testing , early selection , hybrids , pedigree , lines , agronomic traits , fiber quality , crop yield , correlation , Arizona
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

9. Comparison of tillage types and frequencies for cotton on Southern Piedmont soil

Description:
Includes references
Author:
Schomberg, H.H. , Langdale, G.W. , Franzluebbers, A.J. , Lamb, M.C.
Subject:
Gossypium hirsutum , lint cotton , crop yield , piedmont soils , Kanhapludults , soil depth , soil density , sandy loam soils , application rate , growing season , rain , conventional tillage , reduced tillage , deep tillage , chiseling , in-row tillage , weed control , residual effects , economic analysis , costs and returns , Georgia
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

10. Comparisons of genetic and morphological distance with heterosis between Medicago sativa subsp. sativa and subsp. falcata

Description:
Includes references
Author:
Riday, H. , Brummer, E.C. , Campbell, T.A. , Luth, D. , Cazcarro, P.M.
Subject:
Medicago sativa , Medicago sativa subsp. falcata , alfalfa , hybrids , heterosis , dry matter accumulation , crop yield , genetic distance , genotype , genetic markers , chromosome morphology , amplified fragment length polymorphism , specific combining ability , agronomic traits , regrowth , DNA fragmentation , genetic polymorphism , forage quality , mathematical models , statistical analysis , plant morphology
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003