Genetic analysis of root yield and its contributing traits in tropical carrot (Daucus carota L.)
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https://doi.org/10.5958/0974-0112.2017.000045.7Keywords:
Carrot, complimentary epistasis, duplicate epistasis, gene action, recurrent selection, generation mean analysisIssue
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Copyright (c) 2017 Indian J. Hortic.
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Abstract
Information on the genetic basis of root yield and quality of different coloured carrot genotypes is essential for planning the breeding strategies for genetic improvement. The objective of this study was carried out during winter and spring-summer season of 2011-15 to determine the gene action involved in the inheritance of economic traits of three carrot hybrids by using six generation mean analysis (P1, P2, F1, F2, B1 and B2). Three crosses of carrot were analyzed to study the gene actions involved in the inheritance of economic traits, viz., root length, root weight, shoulder diameter, root diameter, flesh thickness, core diameter and root to top ratio. The genetics of root weight, root to top ratio and root diameter in the all White Pale crosses were complementary type of gene interaction, which shows the genetic improvement of carrot tropical with respect to these traits can improved through biparental matting followed by mass and cyclic recurrent selection in advanced generation.
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