Table 5. Mean nitrogen content of whole plants in IR64 and Dro1-NIL lines as affected by line and fertilizer treatment.

		Total nitrogen content (g m−2)
Line (L)	Fertilizer treatment (F)	Heading	Maturity	Accumulated nitrogena (g m−2)
IR64		8.6	11.5	2.8
Dro1-NIL		9.1	12.3	3.2
	No treatment	6.0	8.1	2.1
	Treatment	11.7	15.7	3.9
ANOVA
L		ns	**	*
F		**	**	**
L×F		ns	ns	ns

^aAccumulated nitrogen was calculated as the difference between the total content at heading and maturity.

*Significant at P < 0.05; ** significant at P < 0.01; ns, not significant at P < 0.05. P values are based on ANOVA.