Character association and genetic divergence study in elite breeding lines of groundnut (Arachis hypogaea L.)
Abstract views: 26
/ 
PDF downloads: 2
Character association and genetic divergence study in elite breeding lines of groundnut (Arachis hypogaea L.)
Authors
-
JAYASHREE KAR
Department of Plant Breeding and Genetics, College of Agriculture, OUAT, Bhubaneswar
-
ANKITA JENA
Department of Plant Breeding and Genetics, College of Agriculture, OUAT, Bhubaneswar
Keywords:
Character association, Cluster analysis, Genetic divergence, GroundnutAbstract
Character association and genetic divergence were carried out in a set of elite breeding lines of groundnut. Pod
yield/plant showed significant positive correlation with days to first flowering, plant height, total number of
gynophores/plant and 100 kernel weight both at phenotypic and genotypic level. Biological yield and harvest index had higher positive correlation as well as direct positive effect with seed yield. Thirty genotypes were distributed into eight clusters out of which four were mono-genotypic. Cluster I consisted of 16 genotypes, whereas cluster II, III and IV consisted four, four and two genotypes respectively. Cluster VIII showed highest pod yield/plant followed by cluster IV. Inter cluster distance between cluster VI and VIII was highest, whereas lowest inter cluster distance was observed between cluster III and I. Pod yield /plant contributed maximum towards genetic divergence followed by yield (q/ha).
Downloads
References
Al-Jibouri H A, Mulle P A and Robinson H F 1958.Genotypic and environmental variances and covariances in upland
cotton crosses of interspecific origin. Agronomy Journal, 50: 633-636.
Dewey D S and Lu H H 1959. A correlation and path coefficient analysis of components of crested grass seed production. DOI: https://doi.org/10.2134/agronj1959.00021962005100090002x
Agronomy Journal, 51: 515-518.
Mahalanobis P C 1936. The generalized distance in statistics. In: Proceedings of the National Academy of Sciences (India). 2:79-85.
Prabhu R, Manivannan N, Mothilal, A and Ibrahim S M 2015. Correlation coefficient analysis for yield and yield
attributes in groundnut (Arachis hypogaea L.). Plant Archives, 15(2): 685-689.
Singh R K and Choudhary B D 1976. Biometrical techniques in genetics and plant breeding. (Varghese TM ed.),
International Bioscience Publishers, Hissar, India pp. 56-71.
Vivekananda Y, Khoyumthem P and Singh N B 2015. Genetic divergence in groundnut (Arachis hypogaea L.). Electronic
Journal of Plant Breeding, 6(1): 315-317.
