Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross

Rice

Table 3 Variance analysis of combining ability and genetic parameters estimation of agronomic traits

Trait	DHs	Testers	Testers × DHs	V_A	V_Na	h ² _N
GF	37^**	193^**	27^**	1.4	9.15	0.13
PH	1116^**	18515^**	230^**	138.01	76.67	0.64
HD	924^**	47864^**	366^***	164.84	121.91	0.57
YD	326^**	8498^**	392^**	10.19	130.64	0.07
TP	35^**	157^**	19^**	2.03	6.33	0.24
KGW	25^**	3626^**	9^**	9.57	3.13	0.75
SP	3866^**	140348^**	2155^**	489.26	718.35	0.41
GP	2308^**	183467^**	2793^**	337.13	931.13	0.27
SS	618^**	21437^**	846^**	19.26	281.87	0.06
PL	23^**	823^**	6^**	3.68	1.89	0.66
SDEN	11^**	419^**	5^**	1.57	1.59	0.5

V _A, additive variance, V _Na non-additive variance, h² _N narrow-sense heritability, GF grian-filling degree, PH plant height, HD heading date, YD yield, TP number of tillers per panicle, KGW grain weight per 1000 grains, SP spikelet per panicle, GP number of grains per panicle, SS seed-setting rate, PL panicle langth, SDEN grain density per panicle
^** P < 0.01