Variation among Soybean Breeding Lines in Relation to Yield and Seed‐Fill Duration

摘要: There are exceptions to the positive relationship between seedfilling period (SFP) and seed yield in soybean [ (L.) Merr.]. Studying genotypes that do not show a SFP may aid identifying factors influence or SFP, both. The objective of this research was analyze groups differed their SFP-yield relationship, determine which affected yield. Eight experimental lines were selected from ‘Williams’ ✕ ‘Kanrich’ cross represent four combinations long short high low Replicated field plots grown 1984 1985 at Urbana, IL, on Flanagan silt loam (fine, montmorillonitic, mesic Aquic Argiudoll). Data taken each year included: yield, harvest indices for dry matter N, total flowers, pods three stages (5 mm long, pod containing 3 mature pod), N beginning end SFP. Early flowering related but Rate as well duration fill can Total plant assimilated during matter, final all related.