Table I. Influence of N on Cga1 transgenics.

Chlorophyll, tillering, biomass, seed yield, and harvest index (seed mass/total biomass) of the Cga1 transgenics are shown compared with the wild-type Kaybonnet control (Wt-Kay) under three different N regimes: FN, SN, and LN (n ≤ 40). Asterisks indicate significant differences (P < 0.0) from the wild type under the same N condition.

Parameter	RNAi-cga1			Wt-Kay			Cga1+			Cga1++
	FN	SN	LN	FN	SN	LN	FN	SN	LN	FN	SN	LN
Chlorophyll (SPAD)	42.4*	37.4*	30.1*	49.2	42.1	38.1	51.9	46.8*	43.3*	60.2*	58.8*	56.2*
Flowering tillers	5.41*	4.06*	3.16*	3.79	2.86	2.34	3.27*	2.54	2.12	2.24*	1.76*	1.32*
Dry biomass (g)	22.65	11.74	3.89*	21.99	11.15	5.32	21.43	9.70	5.61	10.6*	4.22*	1.54*
Seed mass (g)	7.64*	4.23	1.07*	9.26	4.51	1.89	9.09	4.12	2.06	3.07*	1.87*	0.66*
Harvest index	0.34*	0.36*	0.28*	0.42	0.40	0.36	0.43	0.44	0.37	0.29*	0.44	0.43*