Phenotypic values of seed vigor among the parents and RIL population at three maturity stages in 2012.

aSeeds were collected at 4, 5 and 6 weeks after heading stages;bGP, Germination potential, %; GR, germination rate, %; GI, germination index; T50, time for 50% of germination, d;cMean ± SD (standard deviation);* and ** significance at the 5% and 1% level according to Student's t test;dRIL sample size n = 150, replications r = 3; SD standard deviation; σG2, genetic variance; σe2, error variance; HB2, heritability (%); P value, the significant difference of seed vigor among RILs according to Student's t test.Phenotypic values of seed vigor among the parents and RIL population at three maturity stages in 2012.