Author: Manoranjan Biswal* and Anita Babbar
Generally plant breeder, select the parents on the basis of phenotypic divergence, however, for effectual breeding programme; the proficiency in genetic divergence among parents with reference to the phenological and quantitative traits which are to be improved is indispensable. The present experiment was carried out at breeding farm of JNKVV, Jabalpur, Madhya Pradesh during Rabi cropping seasons of timely sown during both 2019-20 and 2020-21 Genetic divergence by using Mahalanobis D² statistics was studied in 30 Desi chickpea lines including 3 checks for yield and yield contributing traits Under study, the genotypes fall into ten clusters based on D² analysis. The cluster I and V were largest with the large number of genotypes i.e. 16 and 6 respectively, whereas, rest of clusters had one genotype each. Maximum intra cluster distance was observed in cluster V (D2 = 7.29) followed by cluster I (D2 = 6.43). The maximum inter-cluster distance was observed in between cluster IV and IX (D
Desi chickpea, Mahalanobis D² statistics, Genetic divergence.
Mahalanobis (1928) D² statistical analysis were used for obtaining genetic divergence in the present experiment among 30 desi chickpea genotypes and genotypes were grouped into different clusters according to Torcher’s method as described by Rao (1952). In the present study, the genotypes fall into ten clusters based on D² analysis. The cluster I and V were largest with the highest number of genotypes i.e. 16 and 6 respectively, whereas, rest of clusters had one genotype each. Maximum intra cluster distance was observed in cluster V (D2 = 7.29) followed by cluster I (D2 = 6.43). The maximum inter-cluster distance was observed in between cluster IV and IX (D2 = 13.27) followed by cluster II and cluster IX (D2 = 12.36), whereas, cluster V and VIII with minimum distance (D2 = 9.00). Genotypes having maximum inter-cluster distance should be given priorities for crossing programme for achieving desirable transgressive segregates. Hence, genetic distance had a key role for selection o
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Manoranjan Biswal and Anita Babbar (2022). Cataloguing for Diverse Advance Breeding Lines of Desi Chickpea (Cicer arietinum L.) for Phenological and Yield Attributing Traits. Biological Forum – An International Journal, 14(1): 303-307.