Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu

Genetic variability existing among genotypes is the prime and basic factor for the improvement of any character in a successful breeding programme of tuberose (Polianthes tuberosa L.). Though the attempts made so far to exploit the available variability have culminated in the release of a few improv...

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Autor principal:	C T Sathappan
Formato:	article
Lenguaje:	EN
Publicado:	Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2018
Materias:	tuberose -polianthes tuberosa- pcv gcv – heritability Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/40b9a8da513e41708b11b5e9f9511c76
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spelling	oai:doaj.org-article:40b9a8da513e41708b11b5e9f9511c762021-12-02T15:39:33ZEvaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu0973-354X2582-4899https://doaj.org/article/40b9a8da513e41708b11b5e9f9511c762018-12-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/518https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899Genetic variability existing among genotypes is the prime and basic factor for the improvement of any character in a successful breeding programme of tuberose (Polianthes tuberosa L.). Though the attempts made so far to exploit the available variability have culminated in the release of a few improved region specific selections as varieties from different centers in India, still, varieties suited to coastal eco-system are yet to be identified. Hence, an experiment was laid out to study the performance of 21 genotypes of Polianthes tuberosa L. collected from varied geographical locations. The trial was conducted in the floriculture unit of the Department of Horticulture, Faculty of Agriculture, Annamalai University under randomized block design replicated thrice to assess the genetic variability for eleven economic characters. The results showed that the genotype PT-15 recorded relatively superior mean performance with respect to all characters. High PCV and GCV were observed for number of leaves per plant, plant height and rachis length. Low variability in terms of PCV and GCV was observed for length of the flower and time taken for flowering. High PCV and GCV values of more than 60 per cent was observed for bulb volume followed by yield of flowers per plant, rachis length and duration of flowering. The genotypes viz., PT-15 (Kuzhumani, Thiruchirappalli District), PT-3 (Ravanthavadi, Dharmapuri District) and PT-10(Perumalpatti, Dindugul District) were identified as superior genotypes which are suitable for the coastal region based on per se values and can be utilized for future breeding programmes.C T SathappanSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticletuberose -polianthes tuberosa- pcvgcv – heritabilityPlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 13, Iss 2, Pp 202-208 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	tuberose -polianthes tuberosa- pcv gcv – heritability Plant culture SB1-1110
spellingShingle	tuberose -polianthes tuberosa- pcv gcv – heritability Plant culture SB1-1110 C T Sathappan Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu
description	Genetic variability existing among genotypes is the prime and basic factor for the improvement of any character in a successful breeding programme of tuberose (Polianthes tuberosa L.). Though the attempts made so far to exploit the available variability have culminated in the release of a few improved region specific selections as varieties from different centers in India, still, varieties suited to coastal eco-system are yet to be identified. Hence, an experiment was laid out to study the performance of 21 genotypes of Polianthes tuberosa L. collected from varied geographical locations. The trial was conducted in the floriculture unit of the Department of Horticulture, Faculty of Agriculture, Annamalai University under randomized block design replicated thrice to assess the genetic variability for eleven economic characters. The results showed that the genotype PT-15 recorded relatively superior mean performance with respect to all characters. High PCV and GCV were observed for number of leaves per plant, plant height and rachis length. Low variability in terms of PCV and GCV was observed for length of the flower and time taken for flowering. High PCV and GCV values of more than 60 per cent was observed for bulb volume followed by yield of flowers per plant, rachis length and duration of flowering. The genotypes viz., PT-15 (Kuzhumani, Thiruchirappalli District), PT-3 (Ravanthavadi, Dharmapuri District) and PT-10(Perumalpatti, Dindugul District) were identified as superior genotypes which are suitable for the coastal region based on per se values and can be utilized for future breeding programmes.
format	article
author	C T Sathappan
author_facet	C T Sathappan
author_sort	C T Sathappan
title	Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu
title_short	Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu
title_full	Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu
title_fullStr	Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu
title_full_unstemmed	Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu
title_sort	evaluation of tuberose (polianthes tuberosa l.) genotypes under coastal ecosystem of tamil nadu
publisher	Society for Promotion of Horticulture - Indian Institute of Horticultural Research
publishDate	2018
url	https://doaj.org/article/40b9a8da513e41708b11b5e9f9511c76
work_keys_str_mv	AT ctsathappan evaluationoftuberosepolianthestuberosalgenotypesundercoastalecosystemoftamilnadu
_version_	1718385868475990016

Evaluation of tuberose (Polianthes tuberosa L.) genotypes under coastal ecosystem of Tamil Nadu

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