GENETIC VARIABILITY AND CHARACTER ASSOCIATION STUDIES FOR YIELD AND ITS CONTRIBUTING TRAITS IN CORIANDER (Coriandrum sativum L.)
Loading...
Date
2021-10-29
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
COLLEGE OF AGRICULTURE, UMMEDGANJ, KOTA
Abstract
Genetic variability, correlation and path coefficient analysis were estimated in a set of 60 genotypes of coriander (Coriandrum sativum L.) along with five checks grown in an Augmented Complete Block Design with five blocks during Rabi 2020-21. Analysis of variance showed significant differences among the genotypes for all the traits studied except days to 50 percent flowering, plant height and harvest index while, significant variability among checks were noted with respect to all the traits studied except harvest index.
The high percentage of PCV and GCV were observed for biological yield per plant, seed yield per plot and number of umbels per plant. The high estimates of heritability and genetic advance as percentage of mean were found for biological yield per plant, seed yield per plot, umbels per plant and test weight.
Correlation studies revealed that seed yield per plot exhibited highly significant positive correlation with biological yield per plant, test weight, number of umbels per plant, number of seeds per umbellet, plant height and harvest index. Seed yield per plot had non-significant positive correlation with number of umbellets per umbel and non-significant negative correlation with days to 50 percent flowering.
Path analysis revealed the highest positive direct effect of biological yield per plant, test weight and harvest index on seed yield per plot. The traits like number of umbellets per umbel, days to maturity, plant height and number of seeds per umbellet expressed low positive direct effect towards seed yield per plot while, number of umbels per plant and days to 50 percent flowering showed very low and negative direct effects on seed yield per plot.
The screening results showed that out of 65 genotypes, none of the genotype was completely free from the disease. Two genotypes viz., ACr-1 and ACr-2 showed resistance, 49 genotypes were moderately susceptible while 14 genotypes were susceptible against stem gall disease. The essential oil content was highest in genotype CS-131 and lowest in genotype RD-416.Based on the mean performance of the genotypes, LCC-229, NDCOR-110, CS-131 and LCC-250 were found superior over checks for seed yield per plot and were also promising for other traits. These genotypes can be used in further hybridization programme to develop high yielding coriander varieties with desirable yield contributing characters.
Description
GENETIC VARIABILITY AND CHARACTER ASSOCIATION STUDIES FOR YIELD AND ITS CONTRIBUTING TRAITS IN CORIANDER (Coriandrum sativum L.)