Year: 2026
Type: article
Abstract: The present investigation was conducted to assess combining ability and gene action in Barley (Hordeum vulgare L.) using a diallele mating design. The experimental material comprised eight genotypes, along with their twenty eight F1s. Eight genetically diverse parents were crossed in diallel fashion excluding reciprocals during Rabi 2023–24. These genotypes, along with their F1s were evaluated in a Completely Randomized Block Design with four replications in laboratory during Rabi 2024–25 at S.K.N. College of Agriculture, Jobner, Rajasthan. Observations were recorded for six seedling traits. Analysis of variance revealed significant genetic variability among genotypes, parents, and crosses for all characters except parents for seed germination. Combining ability analysis indicated that specific combining ability (SCA) variance was higher than general combining ability (GCA) variance for all the traits, suggesting the predominance of non-additive gene action. Several parents, notably RD-2052, RD-2624, RD-2899, DWRB-137 and RD-2508, were identified as good general combiners for most of the traits. Among the hybrids, RD-2035 x RD-2052, RD-2899 x BH-959, RD-2052 x BH-959, RD-2508 x DWRB-137 and RD-2035 x RD-2899 exhibited high and significant SCA effects for most of the traits.
Source: PLANT ARCHIVES
Institution: Sri Karan Narendra Agriculture University, Jobner
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W7204198570