Table 1 Analysis of variance table to estimate heritability of agronomic traits from replicated experiments of hybrid rice
SourceDegree of FreedomSSMSE(MS)a
Hybrids1495 − 1 = 1594SSGMSG
Locations2 − 1 = 1SSRMSR
Residual errors(1995 − 1) (2 − 1) = 1494SSEMSE
Corrected total2989SSTMST
• SS, sum of squares; MS, means squares; E(MS), expected mean squares.

• a These variance components are used to estimate the trait heritability