Assessment of genetic variability, correlation and path analysis for yield and its components in groundnut (Arachis hypogaea L.)
GENETIC VARIABILITY FOR YIELD AND ITS COMPONENTS IN GROUNDNUT
206 / 2
Authors
-
MUKESH CHOUDHARY
Dept. of Plant Breeding and Genetics, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur-313 001, Rajasthan
-
S P SHARMA
Dept. of Plant Breeding and Genetics, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur-313 001, Rajasthan
-
ABHAY DASHORA
Dept. of Plant Breeding and Genetics, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur-313 001, Rajasthan
-
S R MALOO
Dept. of Plant Breeding and Genetics, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur-313 001, Rajasthan
Keywords:
Correlation, Groundnut, Path coefficient, VariabilityAbstract
Genetic variability, heritability, correlation and path analysis were carried out in 27 groundnut genotypes. Analysis of variance revealed significant differences among the genotypesfor all the characters. The estimated PCV and GCV indicated existence of fairly high degree of variability for dry pod yield/plant, kernel yield/plant, number of branches/plant, number of mature pods /plant and seed protein content. In corollary to high heritability, estimates of genetic advance as per cent of mean was also observed for dry pod yield/plant, kernel yield/plant, number of mature pods/plant and seed protein content indicating predominance of additive gene effects for these traits. The association study among characters revealed that dry pod yield was positively and significantly correlated with number of pegs/plant, number of mature pods/plant and kernel yield/plant. Path coefficient analysis revealed that kernel yield/plant, biological yield/plant and harvest index had maximum positive direct effect on dry pod yield/plant. The study shows that greater emphasis should be given on these characters while selecting for higher yield and related traits in groundnut.
Downloads
References
Awatade S M, Thawar B L, Jadhav B B and Gaikwad K J 2010. Correlation and path coefficient analysisin groundnut. Journal of Maharashtra Agricultural Universities, 35: 29-31.
Azad M A K and Hamid M 2000. Genetic variability, character association and path analysisin groundnut (Arachis hypogaea L.). Thai Journal of Agricultural Science, 33: 153-157.
Dashora A and Nagda A K 2002. Genetic variability and character association in spanish bunch groundnut. Research on Crops, 3: 416-420.
John K, Vasanthi R P and Venkateswarlu O 2009. Studies on variability and character association in spanish bunch groundnut (Arachis hypogaea L.). Legume Research, 32: 65-69.
Kumar C V S and Rajamani S 2004. Variability and heritability in groundnut. Progressive Agriculture, 4: 69-70.
Panse V G and Sukhatme P V 1985. Statistical Methods for Agricultural Workers (2nd edition), Indian Council of Agricultural Research, New Delhi.
Sarala B S and Gowda M V C 1998. Variability and correlation studies in segregating generation of inter sub-specific crosses of groundnut (Arachis hypogaea). Journal of Crop Improvement, 25: 122-123.
Shinde P P, Khanpara M D, Jivani L L, Vachhani J H and Kachhadia V H 2010. Character association and path coefficient analysisin groundnut(Arachis hypogaea L.). Plant Archives, 10:695-698.
Suneetha K, Dasarada C, Rami Reddy and Ramana J V 2004. Genetic variability and character association in groundnut (Arachis hypogaea L.). ShortPapers presented at theNational Symposium "Enhancing productivity of groundnut for sustaining food and nutritional security" NRCG, Junagadh. October 11-13, 2004, pp 19-20.
