GENETIC STUDIES OF ADVANCED INTERSPECIFIC DERIVATIVES OF LENTIL FOR VARIOUS AGRO-MORPHOLOGICAL TRAITS
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Date
2018-07-23
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CSKHPKV, Palampur
Abstract
The present investigation entitled “Genetic studies of advanced interspecific derivatives of lentil for various agro-morphological traits” was undertaken to assess the magnitude and association among various traits and to identify promising derivatives for seed yield and related traits for future breeding programmes. The experimental material comprised of 225 RILs, was evaluated in an augmented block design with three standard checks viz., Vipasha, Precoz and Markandey during rabi season 2017-18. Sufficient genetic variability was observed for seed yield and yield related traits. On the basis of mean performance, four RILs for seed yield per plant viz., C1 RIL 62, C1 RIL 71, C1 RIL 98 and C1 RIL 65 were significantly out yielded standard check 'Vipasha‟. The superior performance of these genotypes was the result of their better performance for number of fertile nodes per plant, seeds per plant, pods per plant, biological yield per plant and seeds per pod. Moreover, these lines showed highly to moderately resistant reaction against Fusarium wilt. The estimates of phenotypic coefficient of variation, genotypic coefficient of variation, heritability (broad sense) and genetic advance (as a per cent of mean) were high for biological yield per plant, number of fertile nodes per plant, seeds per plant and pods per plant indicating the importance of additive gene action and early selections of these traits could be effective. Correlation studies revealed that seed yield per plant had a positive and significant association with plant height, primary branches per plant, biological yield per plant, number of fertile nodes per plant, seeds per plant, seeds per pod, pods per plant and harvest index. These superior lines can be further evaluated to be used as improved variety(s) and/or can be utilize in further breeding programmes.
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