Heritability and Heterosis of Agronomic Traits in Rice Lines
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 1
Abstract
Study of Heritability and heterosis were conducted on F hybrids along with rice genotypes ( cytoplasmic male sterile lines and restorer varieties) to know the pattern of inheritance of some morphological traits for selecting superior genotypes. The experiment was carried out according to line x tester mating design, during - . Analysis of variance revealed significant differences among genotypes, crosses, lines, testers and line x tester interactions for tiller number, plant height, days to flowering, panicle length, number of spikelet per panicle, spikelet fertility and grain yield traits. Variances of SCA were higher than the GCA variances for traits which indicated predominance of non-additive gene action in the inheritance of the traits. The highest broad sense heritability (Hb) was observed for Plant height ( ). The highest heterosis ( ) was observed in cross Amol A×IRfollowed by other eight crosses for yield and most of its related traits.
Authors and Affiliations
Ammar Gholizadeh ghara, Ghorbanali Nematzadeh, Nadali Bagheri
Keywords
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