Fig. 2. Fitted equations to the relationship between kernel no. plant^–1 and plant growth rate during a period bracketing silking depicted in Fig. 1, for (a) the hybrid CG60 x CG102 and its two parental inbred lines CG60 and CG102, and for (b) the hybrid CG60 x MBS1236 and its two parental inbred lines CG60 and MBS1236. GDD = growing degree-day.