Studying the genetic basis of pod physical and biochemical traits in Rajmash (Phaseolus vulgaris L.)

Abstract

The efficiency and efficacy of the parent selection programmes in most crops including Rajmash can be significantly improved by estimating the combining ability and effects. In the present study ten parents were used in a crossing program in line × tester mating design to study combining ability for pod physical and biochemical traits in Rajmash. Parental lines and their crosses were evaluated for nutritional parameters as well as pod physical components.The results showed that pod length, seed index, protein content and anthocyanine content were under control of additive genetic effect while number of seed per pod and total phenol content were controlled by non-additive genetic effect. TRCR 3, TRCR 2 possessed highly significant GCA effect for pod length and seed index. IPR-205-19 was good combiner for number of seed per pod. TRCR 2 was good combiner for biochemical traits viz., protein content, anthocyanine content and total phenol content.