Skip to main content
ARS Home » Research » Publications at this Location » Publication #82923
Title: A SPACE-TIME DISTRIBUTION MODEL FOR LEAF AREA IN SOYBEAN

Author
item PAN, C - CROP SCIENCES UOFI URBANA
item Hesketh, John
item FU, H - CROP SCIENCES UOIF URBANA

Submitted to: American Society of Agronomy
Publication Type: Abstract Only
Publication Acceptance Date: 10/29/1997
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Experiments were conducted to study the effects of plant density (four row spacings) on soybean growth in east Illinois. Plant height, leaf length in main stems and branches were measured twice a week and were related to the growing degree days. Also, growth stages and times to flowering were observed. Specific functions were used to simulate the growth curves for both main stem and branch leaves. The spacial distribution of the leaf area was also determined. In the total variance of leaves produced by different densities, branch leaves contributed most. Vertical distribution of main stem leaves was not significantly affected by the density. Variances of branch leaves were more sensitive to humidity than main stem leaves.