Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa

Vegetable cowpea or Yard long bean [Vigna unguiculata var. sesquipedalis L. (Walp)] is a warm season leguminous crops grown especially for vegetable purpose along the west coast of India. In Goa, pole type varieties are preferred over bushy types as they offer multiple harvests with comparatively lo...

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Autores principales:	Thangam M, Ramachandrudu K, Ashok Kumar J, Safeena S A, Priya Devi S
Formato:	article
Lenguaje:	EN
Publicado:	Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2020
Materias:	correlation coefficient genetic divergence quantitative character vegetable cowpea Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/17d53eceb0ac4bcf9edf87d88f6d4705
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spelling	oai:doaj.org-article:17d53eceb0ac4bcf9edf87d88f6d47052021-12-02T15:44:38ZVariability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa0973-354X2582-489910.24154/JHS.2020.v15i01.006https://doaj.org/article/17d53eceb0ac4bcf9edf87d88f6d47052020-06-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/782https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899Vegetable cowpea or Yard long bean [Vigna unguiculata var. sesquipedalis L. (Walp)] is a warm season leguminous crops grown especially for vegetable purpose along the west coast of India. In Goa, pole type varieties are preferred over bushy types as they offer multiple harvests with comparatively longer pods. There is wide variability found for different morphological and other traits in the local types cultivated in the state of Goa. Exploration of genetic variability in the available germplasm is a prerequisite for initiation of any successful breeding programme. Twenty nine genotypes of vegetable cowpea including three improved varieties collected from different parts of Goa state were evaluated for twelve quantitative characters including yield. High variability was observed for pod yield/plant, number of pods/plant and pod length. The high variability for pod yield per plant is apparent as the pod yield ranged from 315.25 to 2070.45 g/plant with an average of 827.48 g per plant. Pod yield depends on number of pods per plant, pod length and pod weight. Number of pods per plant ranged from 36.65 to 147.80. Pod weight depends on pod length, number of seeds per pod and hundred seeds weight. Wide variation was observed for all these characters in the present study. The GCV value was maximum for pod yield per plant (g) followed by pod weight (g) and number of pods per plant. Low values of GCV were observed for days to first flowering, days to first harvest and number of seeds per pod. In the present study, the twenty nine genotypes could be grouped into fourteen clusters based on genetic distance. High coefficient of variation was observed for pod yield per plant, pod weight, number of pods per plant and pod length indicating their significant contribution in determining the inter cluster distances.Thangam MRamachandrudu KAshok Kumar JSafeena S APriya Devi SSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticlecorrelation coefficientgenetic divergencequantitative charactervegetable cowpeaPlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 15, Iss 1, Pp 45-51 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	correlation coefficient genetic divergence quantitative character vegetable cowpea Plant culture SB1-1110
spellingShingle	correlation coefficient genetic divergence quantitative character vegetable cowpea Plant culture SB1-1110 Thangam M Ramachandrudu K Ashok Kumar J Safeena S A Priya Devi S Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa
description	Vegetable cowpea or Yard long bean [Vigna unguiculata var. sesquipedalis L. (Walp)] is a warm season leguminous crops grown especially for vegetable purpose along the west coast of India. In Goa, pole type varieties are preferred over bushy types as they offer multiple harvests with comparatively longer pods. There is wide variability found for different morphological and other traits in the local types cultivated in the state of Goa. Exploration of genetic variability in the available germplasm is a prerequisite for initiation of any successful breeding programme. Twenty nine genotypes of vegetable cowpea including three improved varieties collected from different parts of Goa state were evaluated for twelve quantitative characters including yield. High variability was observed for pod yield/plant, number of pods/plant and pod length. The high variability for pod yield per plant is apparent as the pod yield ranged from 315.25 to 2070.45 g/plant with an average of 827.48 g per plant. Pod yield depends on number of pods per plant, pod length and pod weight. Number of pods per plant ranged from 36.65 to 147.80. Pod weight depends on pod length, number of seeds per pod and hundred seeds weight. Wide variation was observed for all these characters in the present study. The GCV value was maximum for pod yield per plant (g) followed by pod weight (g) and number of pods per plant. Low values of GCV were observed for days to first flowering, days to first harvest and number of seeds per pod. In the present study, the twenty nine genotypes could be grouped into fourteen clusters based on genetic distance. High coefficient of variation was observed for pod yield per plant, pod weight, number of pods per plant and pod length indicating their significant contribution in determining the inter cluster distances.
format	article
author	Thangam M Ramachandrudu K Ashok Kumar J Safeena S A Priya Devi S
author_facet	Thangam M Ramachandrudu K Ashok Kumar J Safeena S A Priya Devi S
author_sort	Thangam M
title	Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa
title_short	Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa
title_full	Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa
title_fullStr	Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa
title_full_unstemmed	Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa
title_sort	variability and genetic divergence in vegetable cowpea germplasm of goa
publisher	Society for Promotion of Horticulture - Indian Institute of Horticultural Research
publishDate	2020
url	https://doaj.org/article/17d53eceb0ac4bcf9edf87d88f6d4705
work_keys_str_mv	AT thangamm variabilityandgeneticdivergenceinvegetablecowpeagermplasmofgoa AT ramachandruduk variabilityandgeneticdivergenceinvegetablecowpeagermplasmofgoa AT ashokkumarj variabilityandgeneticdivergenceinvegetablecowpeagermplasmofgoa AT safeenasa variabilityandgeneticdivergenceinvegetablecowpeagermplasmofgoa AT priyadevis variabilityandgeneticdivergenceinvegetablecowpeagermplasmofgoa
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Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa

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