Table 3.

Fitness for vegetative and reproductive traits of HH1 vs. MH63 rice grown on farmland and saline-alkali soils.

			Farmland soil	Saline-alkali soil
Vegetative trait	Fitness	Plant height (cm)	1.08*	1.06*
		Tiller number	0.78*	0.75*
		Biomass(g)	0.83*	0.76*
	Total fitness		0.90*	0.86*
Reproductive trait	Fitness	Effective panicle number per plant	0.74*	1.00
		Panicle length (cm)	1.02	1.03
		Panicle weight (g)	0.89*	0.39*
		Filled grain number per plant	0.78*	0.45*
		Grain weight per plant (g)	0.84*	0.44*
		Grain number per plant	0.69*	0.43*
		Filled grain number per panicle	1.04	0.45*
		Thousand grain weight (g)	0.99	0.99
		Seed-setting rate (%)	1.13*	1.00
	Total fitness		0.90*	0.69*

Fitness ratio was defined as agronomic traits of HH1 vs. MH63 rice; Total fitness was defined by the average value of all fitness for vegetative traits or reproductive traits.

^*indicates fitness significantly more than or less than 1.00 according to t-test (p < 0.05).