Department of Plant Breeding, Punjab Agricultural University, Ludhiana-141 004, India
The computation of genetic parameters from second degree statistics generated by a set of half-diallel crosses has been done by several workers by using the formulae which are appropriate only for a full-diallel set of crosses. While the components of genetic parameters remain the same as for the full-diallel set, those for the error differ. Appropriate formulae of giving coefficients to error term have been provided by Singh (1981) but discrepencies for the estimation of H2 existed which have been explained. The two cases of homozygous and heterozygous parents have been covered alongwith extension for F2 and subsequent generations.
