2010Electronic Journal of Plant BreedingOpen access

Genetic divergence in chilli accessions.

Bijendra Kumar, Anand Kantti, H. Mallikarjunaiah

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Abstract

A study of genetic diversity in 25 chilli genotypes for various characters revealed substantial differences for all the traits. Based on D2 values, the genotypes were clustered into eight constellations. Cluster I contained nine genotypes fallowed by cluster-II (four) cluster IV and V (two each). The maximum inter cluster distance (D=12.75) was observed between cluster VI and cluster VIII. The cluster IV recorded maximum intracluster distance (D=5.91). Intercrossing among the genotypes belonging to cluster III, IV and I was suggested to develop high yielding varieties with other desirable characters or may be used as potential donors for future hybridization programme to develop better chilli variety with good fruit yield.

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What this paper is about

A study of genetic diversity in 25 chilli genotypes for various characters revealed substantial differences for all the traits. Based on D2 values, the genotypes were clustered into eight constellations. Cluster I contained nine genotypes fallowed by cluster-II (four) cluster IV and V (two each). The maximum inter cluster distance (D=12.75) was observed between cluster VI and cluster VIII. The cluster IV recorded maximum intracluster distance (D=5.91). Intercrossing among the genotypes belonging to cluster III, IV and I was suggested to develop high yielding varieties with other desirable characters or may be used as potential donors for future hybridization programme to develop better chilli variety with good fruit yield.

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Available abstract

A study of genetic diversity in 25 chilli genotypes for various characters revealed substantial differences for all the traits. Based on D2 values, the genotypes were clustered into eight constellations. Cluster I contained nine genotypes fallowed by cluster-II (four) cluster IV and V (two each). The maximum inter cluster distance (D=12.75) was observed between cluster VI and cluster VIII. The cluster IV recorded maximum intracluster distance (D=5.91). Intercrossing among the genotypes belonging to cluster III, IV and I was suggested to develop high yielding varieties with other desirable characters or may be used as potential donors for future hybridization programme to develop better chilli variety with good fruit yield.

Key concepts: Biology, Genetic divergence, Genetic diversity, Cluster (spacecraft), Genotype, Horticulture, Forensic science, Genetic distance

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