Indian Society of Genetics & Plant Breeding

Genetic divergence and interaction among CUPRAC, FRAP and total phenolics content in cauliflower (Brassica oleracea var. botrytis L.)

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Antioxidant capacity and total phenolics content were
estimated in 46 cauliflower lines to determine genetic
variability, heritability and correlation among them with the
objective to formulate breeding strategies for development
cultivars with higher antioxidant capacity. The genotypes
comprised of six CMS lines, few advance breeding lines
and other core collection of our institute. Significant
variability was recorded for CUPRAC, FRAP and total
phenolics content indicating the scope for improvement in
these traits based on various breeding strategies.
Phenotypic co-efficient of variation (PCV) was higher (43.01,
73.07 and 64.28) than genotypic co-efficient of variation
(GCV) (41.34, 71.83 and 63.88) in all cases indicating the
role of environment in expression of these traits. However
improvement for these traits is possible through selection
and heterosis breeding as broad sense heritability (92.44%
to 98.75%) and genetic advance as percentage of mean
(82.46% to 130.87%) was high for all the traits. Correlation
coefficient analysis revealed that CUPRAC, FRAP and total
phenolics had significant positive correlation among each
other. However, none of them had any significant correlation
with marketable yield. Fourty six genotypes were classified
into 6 groups based on non-hierarchical cluster analysis
and phenotypic divergence. This study will pave the way
for breeding of cauliflower cultivars and hybrids with higher
antioxidant capacity and phenolics content.

Keywords: Cauliflower, anti-oxidant capacity, phenolics content, genetics


Year: 2015
Volume: 75
Issue: 1
Article DOI: 10.5958/0975-6906.2015.00010.3
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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