SPECTRAL VARIABILITY AND COMPARATIVE PERFORMANCE OF WORKING COLLECTION AND M1 PROGENIES OF VEGETABLE CLUSTER BEAN
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Date
2017-05
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University of Horticultural Sciences, Bagalkot. (College of Horticulture, Bengaluru).
Abstract
Genetic variability and Spectral variability ability in vegetable cluster bean was studied in
about 116 accessions and in mutated seeds of cluster bean variety Pusa Naubahar, respectively.
Further, 14 advanced breeding lines of cluster bean was studied for variability with respect to
nutritional analysis. ANOVA revealed significant differences among the accessions for all the
fifteen traits. A wide range of variance was observed for three qualitative traits. The branches per
plant exhibited highest estimates of phenotypic coefficient of variance and genotypic coefficient of
variance followed by clusters per plant. High heritability coupled with high genetic advance as
percent mean was recorded for plant height (cm), branches per plant, pod length, pods per cluster,
pods per plant, clusters per plant, 100-seed weight (g) and seeds per pod. 100-seed weight (g)
exhibited highly significant and positive correlation with seeds per pod and pods per cluster.
Among 14 lines, COHBCBC-8-S2 exhibited comparatively higher composition of nutrition
qualities and Ca/P ratio. Further, the gamma rays irradiated cluster bean seeds at four doses (80,
100, 120 and 140 kR) were field evaluated. The dose of 80 kR was found to be efficient in
inducing more variability in cluster bean. Over all, the mutagenic efficiency was higher at lower
dose (80 kR) of mutagen.
Ajay, S.