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Table 2 Genetic correlation among traits under across normal environment (above diagonal) and heat stress conditions (below diagonal)

From: Genome wide association mapping for heat tolerance in sub-tropical maize

Trait

AD

SD

ASI

PH

EH

EPO

GY

AD

1

0.87***

− 0.04***

0.32***

0.38***

−0.05

− 0.18***

SD

–

1

0.22***

0.26***

0.31***

−0.08

− 0.27***

ASI

–

0.35***

1

−0.44***

−0.41***

− 0.53***

−0.76***

PH

–

0.99**

−0.12**

1

0.72***

0.31***

0.40***

EH

–

0.82***

−0.31***

0.95***

1

0.88***

0.41***

EPO

–

0.34***

−0.39***

0.75***

0.95***

1

0.35***

GY

–

−0.99***

−0.76***

0.39***

0.31***

0.22***

1

  1. * = 0.05% significant, ** = 0.01% significant, *** = 0.001% significant, − = no information, AD Days to 50% anthesis, SD Days to 50% silking, ASI Anthesis-silking interval, PH Plant height, EH Ear height, EPO Ear position and GY Grain yield