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Fig. 1. Typical in vitro (A) pollen germination and (B) pollen tube length responses to temperature along with the fitted quadratic and modified bilinear lines, respectively, of four soybean genotypes (DP 5110, Hutcheson, DK5366RR, and HBK 5620RR). The symbols are recorded germination percentages and pollen tube lengths after 24 h and the lines (solid, DP 5110; long dash, Hutcheson; short dash, DK 5366RR; dots, HBK 5620RR) are predicted values by the respective fitted equations.
