Average and 1 standard deviation (vertical bars) of reproductive period and number of nodes on main stem under ND (blue bars) and LD (red bars) in photoperiod-insensitive soybean accessions of different maturity genotypes. The difference between ND and LD is given in parentheses. The genotypic class E1/e3/e4 mostly consisted of determinate dt1 accessions. The designations e1, e3, and e4 refer to all of the dysfunctional alleles at these respective loci. Numerals within parentheses under genotypes indicate the number of accessions classified into each multi-locus genotype.