Genetic Divergence among Oat (Avena sativa L.) Genotypes under Dual purpose and Seed Yield related Systems

Author: Priyanka, V.K. Sood, Amit Rana* and Sawan Kumar

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Abstract

The present study was conducted during Rabi season 2018-19 with 58 diverse oat genotypes in order to study genetic diversity for different agro-morphological and quality traits among dual purpose and seed yield purpose systems separately. Based on D2 statistic, genotypes were grouped into 12 clusters in case of dual purpose system whereas 11 clusters in seed related system. The inter-cluster distances were observed to be higher than intra-cluster. Cluster I emerged as the largest cluster followed by Cluster II under both the systems. Among both the systems, β- glucan content contributed maximum towards genetic divergence followed by crude protein content of seed while the lowest by leaf: stem ratio and harvest index under dual purpose and seed yield purpose systems, respectively. Genotypes IG-03-205, EC-528883 and OS-6 were found more diverse under both the systems which can be utilized in future hybridization programmes.

Keywords

Oat; genetic diversity; hybridization; nutritional quality.