Table 2.

Spearman's rank correlation coefficients among the 14 traits in greenhouse tests and field investigations.

Traits	15 DAI DI	30 DAI DI	AY09 DI	AY13 DI	AY14 DI	AYF15 DI	AYM15 DI	15 DAI DInc	30 DAI DInc	AY09 DInc	AY13 DInc	AY14 DInc	AYF15 DInc
30 DAI DI	0.690**
AY09 DI	ns	ns
AY13 DI	ns	ns	0.291**
AY14 DI	0.175*	0.217*	0.623**	0.220**
AYF15 DI	0.161*	ns	0.163*	0.146*	0.311**
AYM15 DI	ns	ns	0.466**	ns	0.423**	ns
15 DAI DInc	0.715**	0.958**	ns	ns	0.207*	ns	ns
30 DAI DInc	0.891**	0.698**	ns	ns	ns	ns	ns	0.765**
AY09 DInc	ns	ns	0.534**	0.187**	0.225**	ns	ns	ns	ns
AY13 DInc	ns	ns	0.156*	0.840**	ns	ns	ns	ns	ns	0.168*
AY14 DInc	ns	0.141*	0.281**	ns	0.854**	0.356**	ns	ns	ns	ns	ns
AYF15 DInc	ns	ns	ns	ns	0.352**	0.900**	ns	ns	ns	ns	ns	0.423**
AYM15 DInc	ns	ns	0.224**	ns	ns	ns	0.786**	ns	ns	ns	ns	ns	−0.158*

^*Indicates a significant level at p < 0.05,

^**Indicates a significant level at p < 0.01 and ns is the absence of significance.