ESTIMATES OF GENETIC VARIABILITY AND CORRELATION STUDIES IN CUMIN

N.K. JAT¹*, D. SINGH^2
1Department of Plant Breeding and Genetics, SKN College of Agriculture, Jobner, 303 329, India
²Department of Plant Breeding and Genetics, SKN College of Agriculture, Jobner, 303 329, India
* Corresponding Author : nkjatpbg@gmail.com

Received : 11-08-2016     Accepted : 21-09-2016     Published : 01-11-2016
Volume : 8     Issue : 53       Pages : 2651 - 2653
Int J Agr Sci 8.53 (2016):2651-2653

Keywords : Genetic variability, Heritability, Genetic advances, Correlation coefficient, Cumin
Academic Editor : Dr Balwant Kumar
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : None declared

Twenty genotypes of cumin were evaluated in normal, salinity and moisture stress conditions during Rabi 2005-06 for nine quantitative traits to estimate the nature and magnitude of variability, heritability (bs), genetic advance as % of mean and interrelationship among the traits. Analysis of variance indicated significant variability for all the traits. High estimates of phenotypic coefficient of variation (PCV) along with genetic coefficient of variation (GCV) were observed for biological yield, seed yield, plant height and number of umbels/plant in all the three environments. High variability were observed for branches/plant, umbels/plant, 1000 seed weight and seed yield under stress condition while, days to 50 % flowering, plant weight and 1000 seed weight was under normal condition. The genetic advance was found high for seed yield, biological yield, branches/plant and umbels/plant in stress condition while high genetic advance for plant height, biological yield and seed yield in normal condition. A considerable variation was observed in normal condition in compared to salinity and moisture stress condition for most of the traits, which was confirmed, by high mean and wide range of variation as evidenced by high PCV and GCV values. Significant and positive correlation of seed yield was observed with seeds/plant and biological yield in stress condition but in normal condition, seed yield has positive correlation with branches/plant.