Table 3.

Fitness for vegetative and reproductive components of HH1 vs. MH63 rice under four growth conditions combining land use and weed competition.

Life-History Stage		Variable Measured	F-NW	W-NW	F-W	W-W
Vegetative growth components	Fitness	Height	1.08 ± 0.01*	1.07 ± 0.01*	1.03 ± 0.03	1.03 ± 0.03
		Tiller number	0.76 ± 0.04*	0.70 ± 0.02*	1.00 ± 0.00	1.00 ± 0.00
		Biomass	0.79 ± 0.02*	0.79 ± 0.02*	1.02 ± 0.03	1.01 ± 0.01
	Composite fitness		0.88 ± 0.01*	0.85 ± 0.01*	1.02 ± 0.01	1.01 ± 0.01
Reproductive components	Fitness	Effective panicle number per plant	0.61 ± 0.03*	0.63 ± 0.01*	1.00 ± 0.00	1.00 ± 0.00
		Panicle length (cm)	1.08 ± 0.01*	1.14 ± 0.02*	1.16 ± 0.03*	1.02 ± 0.03
		Panicle weight (g)	0.80 ± 0.03*	0.78 ± 0.02*	1.10 ± 0.02*	1.00 ± 0.02
		Filled grain number per plant	0.68 ± 0.02*	0.82 ± 0.02*	1.15 ± 0.02*	1.30 ± 0.01*
		Filled grain weight per plant (g)	0.88 ± 0.03*	0.82 ± 0.03*	1.28 ± 0.02*	1.33 ± 0.02*
		Grain number per plant	0.66 ± 0.02*	0.80 ± 0.02*	1.04 ± 0.03	1.03 ± 0.03
		Thousand grain weight (g)	1.04 ± 0.03	1.04 ± 0.04	1.00 ± 0.00	1.00 ± 0.00
		Seed-setting rate (%)	1.04 ± 0.03	1.02 ± 0.01	1.28 ± 0.02*	1.26 ± 0.02*
	Composite fitness		0.85 ± 0.02*	0.88 ± 0.00*	1.12 ± 0.00*	1.12 ± 0.00*
The whole life-history	composite fitness		0.86 ± 0.02*	0.87 ± 0.02*	1.07 ± 0.06*	1.06 ± 0.06*

Fitness ratio was defined as agronomic traits of HH1 vs. MH63 rice; Composite fitness (Total fitness) was defined by the average value of all fitness for vegetative traits or (or and) reproductive traits. * indicates fitness significantly more than or less than 1.00 according to t-test (P < 0.05).