Figure 8.
Photoperiod coefficients for soybean isolines (Y) for the multiplicative and additive models as related to the number of loci (X) in each isoline with dominant (late flowering) genes. For the multiplicative model, the equation is Y = 0.013 + 0.031X, R2 = 0.79, SEE = 0.023 h−1. For the additive model, the equation is Y = 1.15 + 0.531X, R2 = 0.79, SEE = 0.389 °C h−1.