Combining ability and gene action studies for yield and fibre traits in Gossypium arboreum using Griffings numerical and Haymans graphical approach

Table 4 Estimation of gene action for various traits

	GCA Variance	SCA Variance	Ratio (GCA VAR/SCA VAR)	Gene Action
DFF	0.520 9	9.236	0.056 4	Non- additive
PH	39.057 7	361.086 5	0.108 2	Non- additive
NMB/P	0.025 8	0.328 8	0.078 4	Non- additive
NSB/P	1.125 1	6.006 3	0.187 3	Non- additive
NB/P	1.454 4	14.418 9	0.100 9	Non- additive
NL/B	0.003 1	0.039 9	0.078 4	Non- additive
DBB	1.289 6	6.641 4	0.194 2	Non- additive
BW	0.000 8	0.117 4	0.007 0	Non- additive
NS/B	0.639 6	17.080 1	0.037 4	Non- additive
SCY/P	6.350 3	86.227 6	0.073 6	Non- additive
GOT	2.127 4	26.749 1	0.079 5	Non- additive
SI	0.085 9	1.255 1	0.068 4	Non- additive
LI	0.013 6	0.133 6	0.101 6	Non- additive
UHML	0.299 2	1.038 4	0.288 2	Non- additive
UI	0.015 4	-0.474 7	-0.032 3	Non- additive
Str	0.554 8	1.486 3	0.373 3	Non- additive
EL	0.007 7	0.033 7	0.229 3	Non- additive
Mic	0.034 7	0.127 9	0.271 5	Non- additive

DFF days to fifty per cent flowering (days), PH plant height (cm), NMB/P the number of monopodia per plant, NSB/P the number of sympodia per plant, NB/P the number of bolls per plant, NL/P the number of locules per boll, DBB days to first boll bursting (days), BW boll weight (g), NS/B the number of seeds per boll, SCY/P seed cotton yield per plant (g), SI seed index (g), LI lint index (g), GOT ginning out turn (%), UHML upper half mean length (mm), Str fibre strength (g·tex^–1), UI uniformity index, EL elongation percentage (%), Mic micronaire

ISSN: 2523-3254