Two Genes Affecting Stem Termination in Soybeans1

摘要: Inheritance of the common determinate (abruptly terminated) stem type (dt1) vs indeterminate (tapered) stem (Dt1) in soybeans [Glycine max (L.) Merrill] was confirmed as monogenic. The heterozygote Dt1dt1 showed a distinct intermediate or semi‐determinate phenotype in the genetic backgrounds studied. A stem type resembling this Dt1dt1 heterozygote was found in a few true‐breeding varieties and was shown to be controlled by a single dominant gene designated Dt2. Crosses between the two types gave F2 ratios of 1 …