Evaluation and strategies of tolerance to water stress in Paspalum germplasm
Main Author: | |
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Publication Date: | 2017 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.17138/TGFT(5)153-162 http://hdl.handle.net/11449/170224 |
Summary: | The evaluation of genetic resources in germplasm banks of Paspalum can contribute to their use in breeding programs and for advanced research in biotechnology. This study evaluated the tolerance of 11 Paspalum accessions to abiotic stress caused by soil water deficit in a greenhouse experiment at Embrapa Pecuária Sudeste, São Carlos, state of São Paulo, Brazil. The variables analyzed were: dry biomass of green matter, dead matter and roots; leaf area; leaf water potential; number of days to lose leaf turgor (wilting); soil moisture at wilting; and number of tillers per pot. The results showed high genetic variability for all traits, not only among species but also within species, and also reflected the existence of different strategies of response and potential adaptation to water deficit events. For breeding programs, when the aim is to produce materials better adapted to the occurrence of prolonged drought, 5 accessions from this group seem to have good potential: P. malacophyllum BGP 289, P. quarinii BGP 229, P. regnellii BGP 112, P. conspersum BGP 402 and P. urvillei x P. dilatatum BGP 238. Conversely, when the goal is to select materials for short-term water stress conditions, 6 accessions stand out: P. atratum BGP 308, P. regnellii BGP 215, 248 and 397, P. dilatatum BGP 234 and P. malacophyllum BGP 293. |
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Evaluation and strategies of tolerance to water stress in Paspalum germplasmAbiotic stressGenotypesGermplasm bankWater deficitThe evaluation of genetic resources in germplasm banks of Paspalum can contribute to their use in breeding programs and for advanced research in biotechnology. This study evaluated the tolerance of 11 Paspalum accessions to abiotic stress caused by soil water deficit in a greenhouse experiment at Embrapa Pecuária Sudeste, São Carlos, state of São Paulo, Brazil. The variables analyzed were: dry biomass of green matter, dead matter and roots; leaf area; leaf water potential; number of days to lose leaf turgor (wilting); soil moisture at wilting; and number of tillers per pot. The results showed high genetic variability for all traits, not only among species but also within species, and also reflected the existence of different strategies of response and potential adaptation to water deficit events. For breeding programs, when the aim is to produce materials better adapted to the occurrence of prolonged drought, 5 accessions from this group seem to have good potential: P. malacophyllum BGP 289, P. quarinii BGP 229, P. regnellii BGP 112, P. conspersum BGP 402 and P. urvillei x P. dilatatum BGP 238. Conversely, when the goal is to select materials for short-term water stress conditions, 6 accessions stand out: P. atratum BGP 308, P. regnellii BGP 215, 248 and 397, P. dilatatum BGP 234 and P. malacophyllum BGP 293.Centro Universitário Central Paulista - UNICEPUniversidade Estadual Paulista (UNESP)Embrapa RondôniaUniversidade Federal de São CarlosEmbrapa Pecuária SudesteUniversidade Estadual Paulista (UNESP)Centro Universitário Central Paulista - UNICEPUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Universidade Federal de São Carlos (UFSCar)Pezzopane, Cristiana de G.Lima, Arthur G. [UNESP]Da Cruz, Pedro G.Beloni, TatianeFávero, Alessandra P.Santos, Patrícia M.2018-12-11T16:49:49Z2018-12-11T16:49:49Z2017-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article153-162application/pdfhttp://dx.doi.org/10.17138/TGFT(5)153-162Tropical Grasslands-Forrajes Tropicales, v. 5, n. 3, p. 153-162, 2017.2346-3775http://hdl.handle.net/11449/17022410.17138/TGFT(5)153-1622-s2.0-850304604422-s2.0-85030460442.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTropical Grasslands-Forrajes Tropicales0,188info:eu-repo/semantics/openAccess2023-10-08T06:02:41Zoai:repositorio.unesp.br:11449/170224Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:18:18.502212Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm |
title |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm |
spellingShingle |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm Pezzopane, Cristiana de G. Abiotic stress Genotypes Germplasm bank Water deficit |
title_short |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm |
title_full |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm |
title_fullStr |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm |
title_full_unstemmed |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm |
title_sort |
Evaluation and strategies of tolerance to water stress in Paspalum germplasm |
author |
Pezzopane, Cristiana de G. |
author_facet |
Pezzopane, Cristiana de G. Lima, Arthur G. [UNESP] Da Cruz, Pedro G. Beloni, Tatiane Fávero, Alessandra P. Santos, Patrícia M. |
author_role |
author |
author2 |
Lima, Arthur G. [UNESP] Da Cruz, Pedro G. Beloni, Tatiane Fávero, Alessandra P. Santos, Patrícia M. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Centro Universitário Central Paulista - UNICEP Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Universidade Federal de São Carlos (UFSCar) |
dc.contributor.author.fl_str_mv |
Pezzopane, Cristiana de G. Lima, Arthur G. [UNESP] Da Cruz, Pedro G. Beloni, Tatiane Fávero, Alessandra P. Santos, Patrícia M. |
dc.subject.por.fl_str_mv |
Abiotic stress Genotypes Germplasm bank Water deficit |
topic |
Abiotic stress Genotypes Germplasm bank Water deficit |
description |
The evaluation of genetic resources in germplasm banks of Paspalum can contribute to their use in breeding programs and for advanced research in biotechnology. This study evaluated the tolerance of 11 Paspalum accessions to abiotic stress caused by soil water deficit in a greenhouse experiment at Embrapa Pecuária Sudeste, São Carlos, state of São Paulo, Brazil. The variables analyzed were: dry biomass of green matter, dead matter and roots; leaf area; leaf water potential; number of days to lose leaf turgor (wilting); soil moisture at wilting; and number of tillers per pot. The results showed high genetic variability for all traits, not only among species but also within species, and also reflected the existence of different strategies of response and potential adaptation to water deficit events. For breeding programs, when the aim is to produce materials better adapted to the occurrence of prolonged drought, 5 accessions from this group seem to have good potential: P. malacophyllum BGP 289, P. quarinii BGP 229, P. regnellii BGP 112, P. conspersum BGP 402 and P. urvillei x P. dilatatum BGP 238. Conversely, when the goal is to select materials for short-term water stress conditions, 6 accessions stand out: P. atratum BGP 308, P. regnellii BGP 215, 248 and 397, P. dilatatum BGP 234 and P. malacophyllum BGP 293. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 2018-12-11T16:49:49Z 2018-12-11T16:49:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.17138/TGFT(5)153-162 Tropical Grasslands-Forrajes Tropicales, v. 5, n. 3, p. 153-162, 2017. 2346-3775 http://hdl.handle.net/11449/170224 10.17138/TGFT(5)153-162 2-s2.0-85030460442 2-s2.0-85030460442.pdf |
url |
http://dx.doi.org/10.17138/TGFT(5)153-162 http://hdl.handle.net/11449/170224 |
identifier_str_mv |
Tropical Grasslands-Forrajes Tropicales, v. 5, n. 3, p. 153-162, 2017. 2346-3775 10.17138/TGFT(5)153-162 2-s2.0-85030460442 2-s2.0-85030460442.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Tropical Grasslands-Forrajes Tropicales 0,188 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
153-162 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128343957045248 |