Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]

A field study was conducted to estimate genetic variability, heritability and genetic advance in 20 genotypes of China aster for 15 traits during the year 2012-13 in Randomized Complete Block Design, with three replications. Results revealed that the magnitude of phenotypic co-efficient of variation...

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Autores principales:	Gayatri Khangjarakpam, Rajiv Kumar, G K Seetharamu, T Manjunatha Rao, M V Dhananjaya, R Venugopalan, K Padmini
Formato:	article
Lenguaje:	EN
Publicado:	Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2014
Materias:	china aster genetic variability heritability genetic advance Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/6272945a9f994a3e9b516ff13f4a688a
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spelling	oai:doaj.org-article:6272945a9f994a3e9b516ff13f4a688a2021-12-02T12:37:43ZGenetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]0973-354X2582-4899https://doaj.org/article/6272945a9f994a3e9b516ff13f4a688a2014-12-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/183https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899A field study was conducted to estimate genetic variability, heritability and genetic advance in 20 genotypes of China aster for 15 traits during the year 2012-13 in Randomized Complete Block Design, with three replications. Results revealed that the magnitude of phenotypic co-efficient of variation (PCV) was higher than genotypic co-efficient of variation (GCV) for all the traits studied. Narrow differences between GCV and PCV were recorded in all the characters except flowering duration, vase-life and shelf-life, indicating little environmental influence on expression of these characters. High (>20%) GCV and PCV were recorded for plant height, number of branches and leaves per plant, flower diameter, number of ray and disc florets/flower head, stalk length, and, number and weight of flowers/plant. Heritability estimates ranged from 28.30% (flowering duration) to 99.54% (flower diameter). High heritability (<60%) was observed for all the traits except flowering duration. High heritability, coupled with high genetic advance as per cent mean, was recorded for flower diameter, stalk-length, number of branches/plant, weight of flowers/plant, days to first flower opening, days to 50 per cent flowering, plant height, number of leaves/plant, number of ray and disc florets/flower head, number of flowers/plant, indicating a possible role of additive gene action. Thus, these traits can be improved through selection and breeding.Gayatri KhangjarakpamRajiv KumarG K SeetharamuT Manjunatha RaoM V DhananjayaR VenugopalanK PadminiSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticlechina astergenetic variabilityheritabilitygenetic advancePlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 9, Iss 2, Pp 141-144 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	china aster genetic variability heritability genetic advance Plant culture SB1-1110
spellingShingle	china aster genetic variability heritability genetic advance Plant culture SB1-1110 Gayatri Khangjarakpam Rajiv Kumar G K Seetharamu T Manjunatha Rao M V Dhananjaya R Venugopalan K Padmini Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]
description	A field study was conducted to estimate genetic variability, heritability and genetic advance in 20 genotypes of China aster for 15 traits during the year 2012-13 in Randomized Complete Block Design, with three replications. Results revealed that the magnitude of phenotypic co-efficient of variation (PCV) was higher than genotypic co-efficient of variation (GCV) for all the traits studied. Narrow differences between GCV and PCV were recorded in all the characters except flowering duration, vase-life and shelf-life, indicating little environmental influence on expression of these characters. High (>20%) GCV and PCV were recorded for plant height, number of branches and leaves per plant, flower diameter, number of ray and disc florets/flower head, stalk length, and, number and weight of flowers/plant. Heritability estimates ranged from 28.30% (flowering duration) to 99.54% (flower diameter). High heritability (<60%) was observed for all the traits except flowering duration. High heritability, coupled with high genetic advance as per cent mean, was recorded for flower diameter, stalk-length, number of branches/plant, weight of flowers/plant, days to first flower opening, days to 50 per cent flowering, plant height, number of leaves/plant, number of ray and disc florets/flower head, number of flowers/plant, indicating a possible role of additive gene action. Thus, these traits can be improved through selection and breeding.
format	article
author	Gayatri Khangjarakpam Rajiv Kumar G K Seetharamu T Manjunatha Rao M V Dhananjaya R Venugopalan K Padmini
author_facet	Gayatri Khangjarakpam Rajiv Kumar G K Seetharamu T Manjunatha Rao M V Dhananjaya R Venugopalan K Padmini
author_sort	Gayatri Khangjarakpam
title	Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]
title_short	Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]
title_full	Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]
title_fullStr	Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]
title_full_unstemmed	Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]
title_sort	genetic variability for quantitative traits in china aster [callistephus chinensis (l.) nees]
publisher	Society for Promotion of Horticulture - Indian Institute of Horticultural Research
publishDate	2014
url	https://doaj.org/article/6272945a9f994a3e9b516ff13f4a688a
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Genetic Variability for Quantitative Traits in China Aster [Callistephus chinensis (L.) Nees]

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