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

Table 3 Heterosis (H_t), heterobeltiosis (H_bt), broad sense heritability (h²_bs) and narrow sense heritability (h²_ns) for all the observed traits in cotton grown under normal and heat stress conditions

Trait	Condition	IUB-13 × FH-115				GH-Mubarak × NIAB-Kiran
Trait	Condition	H_t/%	H_bt/%	h²_bs	h²_ns	H_t/%	H_bt/%	h²_bs	h²_ns
SCY	NS	21.69	-19.21	0.41	0.39	15.64	-24	0.46	0.43
SCY	HS	16.64	-20.70	0.44	0.41	18.6	-20.48	0.45	0.41
GOT	NS	3.73	-5.28	0.35	0.31	-1.47	-7.27	0.35	0.30
GOT	HS	3.84	-5.12	0.35	0.30	1.99	-5.27	0.43	0.30
Pol Via	NS	-.04	-12.18	0.37	0.33	-2.78	-18.25	0.39	0.34
Pol Via	HS	-2.73	-20.42	0.37	0.33	-2.49	-22.7	0.40	0.35
CMT	NS	-1.49	-13.63	0.37	0.32	-2.33	-13.85	0.37	0.32
CMT	HS	-2.37	-15	0.36	0.32	-1.29	-14.12	0.36	0.32
H₂O₂	NS	6.67	-31.91	0.18	0.14	-5.97	-40.56	0.19	0.14
H₂O₂	HS	-4.54	-40.43	0.19	0.14	-13.48	-44.6	0.22	0.16
POD	NS	-5.82	-23.90	0.40	0.35	0.16	-18.29	0.39	0.35
POD	HS	2.1	-22.76	0.42	0.38	0.19	-23.37	0.43	0.39
PRO	NS	3.33	-29.54	0.44	0.41	1.67	-23.75	0.41	0.37
PRO	HS	-0.64	-35	0.47	0.44	-3.44	-35.38	0.46	0.43

Ht heterosis, Hbt heterobeltiosis, h²_bs broad sense heritability, h²_ns narrow sense heritability, 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 content, HS heat stress condition, NS normal sowing condition

ISSN: 2523-3254