Table 3.

Analysis of variance showing the effects of year, varietal, and N treatment on grain yield, grain filling, and spikelet per panicle.

Source of Variance	Grain yield	Grain filling	Spikelet per panicle
Year (Y)	∗	∗∗	∗∗
Varietal (V)	∗∗	ns	Ns
Treatment (T)	∗∗	ns	∗∗
Y∗V	∗∗	∗∗	∗∗
Y∗T	∗∗	∗	Ns
V∗T	∗∗	ns	∗∗
Y∗V∗T	ns	ns	∗∗

Ns, non-significant; ^∗significant at P < 0.05, ^∗∗significant at P < 0.01.