Table 5. Correlations among grain yield, protein content, amino acid content, EAAI and PDCAAS in the three cropping seasons.

	Yield	Protein	TAA	EAA	EAAI	PDCAAS
Yield	1
Protein	0.511***	1
TAA	0.288**	0.805***	1
EAA	0.296**	0.813***	0.991***	1
EAAI	-0.449***	-0.362***	0.229*	0.230*	1
PDCAAS	-0.392***	-0.579***	-0.125	-0.108	0.782***	1

Note:

* Significant at P < 0.05;

** Significant at P < 0.01;

*** Significant at P < 0.001