Table 2.

Calibrated genotype specific parameters of the 16 maize varieties used in the study.

Variety	P1*	P2	P5	G2	G3	PHINT
	(oC days)	(days)	(o C days)	Kernel plant−1	(mg day−1)	(oC day tip−1)
Sammaz 54	227.4	0.01	518.3	523.3	6.91	42.10
Sammaz 28	192.3	0.01	527.8	514.3	6.99	36.90
Ife Hybrid 5	213.7	0.01	511.6	518.7	7.09	40.00
Ife Hybrid 6	223.6	0.01	520.7	606.7	7.47	35.70
Early White	270.0	0.01	614.3	713.4	6.58	45.00
Sammaz 32	282.0	0.01	601.0	822.0	6.55	45.04
Sammaz 34	287.0	0.01	596.0	827.0	6.77	40.00
Sammaz 41	283.6	0.01	550.7	806.9	7.76	37.00
M1026−10	288.1	0.01	683.4	819.3	7.80	45.50
M1227−12	288.6	0.01	679.2	816.4	7.72	45.50
IWDC2	290.2	0.01	692.7	829.6	8.51	42.90
M0926−8	289.8	0.01	781.8	834.1	8.42	41.20
Oba Super 9	293.1	0.01	768.1	828.7	7.83	45.00
Sammaz 11	298.6	0.01	772.9	830.7	7.80	45.00
TZL-COMP4	293.7	0.01	769.2	786.7	7.59	39.98
TZBSR	294.1	0.01	789.3	846.9	7.17	45.00

P2 = Delay in development for each hour that day-length is above 12.5 h.

P5 = Thermal time from silking to time of physiological maturity.

G2 = Maximum kernel number per plant.

G3 = Kernel growth rate during linear grain filling stage under optimum conditions.

PHINT = Thermal time between successive leaf tip appearances.

^*P1 = Thermal time from seedling emergence to the end of juvenile phase.