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ARS Home » Research » Publications at this Location » Publication #73015
Title: A CROPS-WEEDS HANDBOOK WITH COEFFICIENTS FOR GENERIC PLANT MODELS

Author
item PAN, XIAOKANG - UNIV OF ILLINOIS URBANA
item BEGONIA, G - JACKSON STATE UNIV MS
item Hesketh, John

Submitted to: Agronomy Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 11/12/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The seasonal dynamics of the physiology and structure of the crop-weed area index (LAI) are important in controlling crop photosynthesis, evapotranspiration, rainfall interception, soil erosion and crop-weed competition. We measured the expansion of mainstem and branch leaves and extension of internodes, vs. degree days, for cotton, soybean corn, tomato, okra, zuccini, bean sunflower, velvetleaf, jimsonweed, cocklebur, morningglory, pigweed, lambsquarter, foxtail, burdock, oats, potato, gladiolus, spring wheat, spring barley, English pea, turnip, radish, and ten tallgrass prairie species. We also measured reproductive phenology. This information is to be used as part of a generic crop-weed model for LAI and phenology, as presented in another abstract.