Genetics of biochemical attributes regulating morpho-physiology of upland cotton under high temperature conditions

Table 5 Phenotypic (lower diagonal) and genotypic correlation (upper diagonal) matrix for recorded parameters in cross 2 (GH-Mubarak × NIAB-Kiran) in cotton grown under normal and heat stress conditions

Trait	Condition	SCY	GOT	Pol Via	CMT	H₂O₂	POD	PRO
SCY	NS		0.26*	0.89**	0.28*	- 0.95**	0.98**	0.99**
SCY	HS		0.94**	0.97**	0.87**	- 0.92**	0.97**	0.98**
GOT	NS	0.94**		0.10	0.33*	- 0.95**	0.11	0.91**
GOT	HS	0.93**		0.95**	0.95**	- 0.98**	0.67**	0.95**
Pol Via	NS	0.98**	0.92**		0.30*	- 0.96**	0.97**	0.98**
Pol Via	HS	0.91**	0.93**		0.98**	- 0.94**	0.97**	0.96**
CMT	NS	0.28*	0.33*	0.29*		- 0.33*	0.27*	0.41*
CMT	HS	0.34*	0.28*	0.76**		- 0.93**	0.95**	0.47*
H₂O₂	NS	- 0.94**	- 0.85**	- 0.95**	- 0.33*		- 0.97**	- 0.99**
H₂O₂	HS	- 0.92**	- 0.96**	- 0.93**	- 0.91**		- 0.92**	- 0.93**
POD	NS	0.97**	0.59*	0.96**	0.27*	- 0.96**		0.21*
POD	HS	0.97**	0.96**	0.96**	0.91**	- 0.92**		0.39*
PRO	NS	0.96**	0.90**	0.95**	0.40*	- 0.96**	0.94**
PRO	HS	0.96**	0.87**	0.94**	0.46*	- 0.94**	0.36*

^**, ^* represent significance at P < 0.01, P < 0.05, respectively
SCY seed cotton yield per plant, GOT ginning out turn, Pol Via pollen viability, CMT cell membrane thermostability, H₂O₂ hydrogen peroxide content, POD peroxidase activity, PRO proline, HS heat stress condition, NS normal sowing condition

ISSN: 2523-3254