Table 6.

Correlation and interaction between fitness index, hybridization, and protein expression.

Fitness index	Correlation with hybridization	Correlation with protein expression	Correlation with interaction between hybridization and protein expression
Emergence rate	N	N	N
Aboveground biomass	***	N	***
Pollen germination rate	N	N	N
Number of pods per plant	N	N	N
Number of full grains per pod	N	N	N
Number of full grains per plant	N	N	N
100-grain weight	*	N	*

“N” indicates that the fitness index has no significant difference or is not related to hybridization or protein expression (p > 0.05). “^*” indicates that the change of fitness index is significantly correlated with hybridization or protein expression (0.01 < p < 0.05). “^***” indicates that the change of fitness index is significantly related to hybridization or protein expression (p < 0.0001).