Vol. 12 No. 1
Genetic and correlation studies in tuberose for assessing the genetic variability
Author(s): A. GAIDHANI, S. BADGE, S. PATIL, M. INGOLE AND A. A. GANORKAR
Abstract:
Ten genotypes of tuberose were evaluated for eighteen different parameters to ascertain the genetic variability and association among the characters during the year 2014-15 in the Horticulture Section, College of Agriculture, Nagpur. The experiment was conducted in three replications with a spacing of 20 x 20 cm. The results of the experiment revealed that Prajwal was superior in desirable direction for all the parameters studied. The phenotypic coefficient of variation (PCV) was higher than genotypic coefficient of variation (GCV) for all the thirteen characters studied. The higher GCV and PCV estimates were found for leaf area at 50 per cent flowering, weight of ten florets, spike yield plot-1 and moderate for height of plant, days to first harvesting, length of spike and vase life. High heritability and high genetic advance was observed for diameter of spike, length of rachis, weight of ten florets, number of florets spike-1 and spike yield plot-1. The correlation studies revealed that genotypic correlation coefficient was higher than the phenotypic correlation coefficient for all the characters studied. Number of leaves clump-1, leaf area at 50% flowering, diameter of spike, length of rachis, weight of ten florets, diameter of floret and number of florets spike-1 exhibited positive significant correlation with spike yield plot-1. Genotype Prajwal was identified to be the best genotype which was followed by Arka Nirantara, and Hyderabad Single.
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