Cold tolerance of forage plant species
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31070 |
Resumo: | The occurrence of frost in southern and southeastern Brazil affects pasture quality and limits the use of forage species with high yield potential. Therefore, elucidating the cold tolerance of individual forage species could facilitate the selection of species that will optimize production and animal feeding throughout the year. Accordingly, the aim of the present study was to evaluate the cold tolerance of forage species to low temperatures, based on cell membrane stability and photoinhibition. Alfalfa (Medicago sativa), sorghum (Sorghum bicolor), black oat (Avena strigosa), marandu grass (Urochloa brizantha), pearl millet (Pennisetum americanum), mombaça grass (Megathyrsus maximus), and bermuda grass ‘Tifton 85’ (Cynodon spp) plants were subjected to temperatures of 0.2, -0.9, -1.8, -2.7, -4.1, -4.6, and -6.2 °C for 1 h in a growth chamber. Cell membrane stability and photoinhibition were based on the electrical conductivity of leaf section solutions and chlorophyll fluorescence, respectively. Initial cold damage corresponded to a sudden increase in leaf solution conductivity and decrease in fluorescence. Millet and sorghum were able to tolerate exposure to temperatures as low as -2.7 °C, whereas black oat, marandu grass, alfafa, and mombaça grass were able to tolerate exposure to -4.1 °C, and bermuda grass ‘Tifton 85’ was able to withstand temperatures below -6.2 °C. |
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Semina. Ciências Agrárias (Online) |
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Cold tolerance of forage plant speciesTolerância ao frio em espécies de forrageirasFrostFluorescenceIon lixiviationConductivity testLow temperature.GeadaFluorescênciaLixiviação de íonsCondutividade elétricaTemperatura baixa.The occurrence of frost in southern and southeastern Brazil affects pasture quality and limits the use of forage species with high yield potential. Therefore, elucidating the cold tolerance of individual forage species could facilitate the selection of species that will optimize production and animal feeding throughout the year. Accordingly, the aim of the present study was to evaluate the cold tolerance of forage species to low temperatures, based on cell membrane stability and photoinhibition. Alfalfa (Medicago sativa), sorghum (Sorghum bicolor), black oat (Avena strigosa), marandu grass (Urochloa brizantha), pearl millet (Pennisetum americanum), mombaça grass (Megathyrsus maximus), and bermuda grass ‘Tifton 85’ (Cynodon spp) plants were subjected to temperatures of 0.2, -0.9, -1.8, -2.7, -4.1, -4.6, and -6.2 °C for 1 h in a growth chamber. Cell membrane stability and photoinhibition were based on the electrical conductivity of leaf section solutions and chlorophyll fluorescence, respectively. Initial cold damage corresponded to a sudden increase in leaf solution conductivity and decrease in fluorescence. Millet and sorghum were able to tolerate exposure to temperatures as low as -2.7 °C, whereas black oat, marandu grass, alfafa, and mombaça grass were able to tolerate exposure to -4.1 °C, and bermuda grass ‘Tifton 85’ was able to withstand temperatures below -6.2 °C.A ocorrência de geadas no Sudeste e Sul do Brasil afeta a qualidade das pastagens e limita o uso de espécies com elevado potencial produtivo. O conhecimento da tolerância das forrageiras ao estresse por baixa temperatura contribui para a seleção das melhores espécies a serem utilizadas, levando à otimização de sua produção e garantindo o pastejo dos animais o ano inteiro. Assim, o objetivo deste trabalho foi avaliar a tolerância de espécies forrageiras às temperaturas baixas pela estabilidade da membrana celular e fotoinibição após o estresse por frio. Foram analisadas as forrageiras: alfafa (Medicago sativa), sorgo (Sorghum bicolor), aveia-preta (Avena strigosa), capim-marandu (Urochloa brizantha), milheto (Pennisetum americanum), capim-mombaça (Megathyrsus maximus) e Tifton 85 (Cynodon spp). As plantas foram submetidas às temperaturas de 0,2; -0,9; -1,8; -2,7; -4,1; -4,6 e -6,2 ºC, durante uma hora, no interior de câmara de crescimento com condições de luminosidade e temperatura controladas, e avaliadas por meio do teste de condutividade elétrica da solução de secções foliares e fluorescência. O início dos danos correspondeu a um aumento súbito na condutividade elétrica da solução e diminuição na fluorescência. A tolerância das espécies forrageiras ao frio foi até a temperatura -2,7oC para milheto e sorgo; -4,1oC para alfafa, aveia-preta, Marandu e Mombaça, e inferior a -6,2oC para o Tifton 85.UEL2018-08-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAgronomyapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3107010.5433/1679-0359.2018v39n4p1469Semina: Ciências Agrárias; Vol. 39 No. 4 (2018); 1469-1476Semina: Ciências Agrárias; v. 39 n. 4 (2018); 1469-14761679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31070/23968Copyright (c) 2018 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessManetti Filho, JoãoOliveira, Carolina Maria Gaspar deCaramori, Paulo HenriqueNagashima, Getulio TakashiHernandez, Fernando Braz Tangerino2022-10-20T19:38:13Zoai:ojs.pkp.sfu.ca:article/31070Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-20T19:38:13Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Cold tolerance of forage plant species Tolerância ao frio em espécies de forrageiras |
title |
Cold tolerance of forage plant species |
spellingShingle |
Cold tolerance of forage plant species Manetti Filho, João Frost Fluorescence Ion lixiviation Conductivity test Low temperature. Geada Fluorescência Lixiviação de íons Condutividade elétrica Temperatura baixa. |
title_short |
Cold tolerance of forage plant species |
title_full |
Cold tolerance of forage plant species |
title_fullStr |
Cold tolerance of forage plant species |
title_full_unstemmed |
Cold tolerance of forage plant species |
title_sort |
Cold tolerance of forage plant species |
author |
Manetti Filho, João |
author_facet |
Manetti Filho, João Oliveira, Carolina Maria Gaspar de Caramori, Paulo Henrique Nagashima, Getulio Takashi Hernandez, Fernando Braz Tangerino |
author_role |
author |
author2 |
Oliveira, Carolina Maria Gaspar de Caramori, Paulo Henrique Nagashima, Getulio Takashi Hernandez, Fernando Braz Tangerino |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Manetti Filho, João Oliveira, Carolina Maria Gaspar de Caramori, Paulo Henrique Nagashima, Getulio Takashi Hernandez, Fernando Braz Tangerino |
dc.subject.por.fl_str_mv |
Frost Fluorescence Ion lixiviation Conductivity test Low temperature. Geada Fluorescência Lixiviação de íons Condutividade elétrica Temperatura baixa. |
topic |
Frost Fluorescence Ion lixiviation Conductivity test Low temperature. Geada Fluorescência Lixiviação de íons Condutividade elétrica Temperatura baixa. |
description |
The occurrence of frost in southern and southeastern Brazil affects pasture quality and limits the use of forage species with high yield potential. Therefore, elucidating the cold tolerance of individual forage species could facilitate the selection of species that will optimize production and animal feeding throughout the year. Accordingly, the aim of the present study was to evaluate the cold tolerance of forage species to low temperatures, based on cell membrane stability and photoinhibition. Alfalfa (Medicago sativa), sorghum (Sorghum bicolor), black oat (Avena strigosa), marandu grass (Urochloa brizantha), pearl millet (Pennisetum americanum), mombaça grass (Megathyrsus maximus), and bermuda grass ‘Tifton 85’ (Cynodon spp) plants were subjected to temperatures of 0.2, -0.9, -1.8, -2.7, -4.1, -4.6, and -6.2 °C for 1 h in a growth chamber. Cell membrane stability and photoinhibition were based on the electrical conductivity of leaf section solutions and chlorophyll fluorescence, respectively. Initial cold damage corresponded to a sudden increase in leaf solution conductivity and decrease in fluorescence. Millet and sorghum were able to tolerate exposure to temperatures as low as -2.7 °C, whereas black oat, marandu grass, alfafa, and mombaça grass were able to tolerate exposure to -4.1 °C, and bermuda grass ‘Tifton 85’ was able to withstand temperatures below -6.2 °C. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-08-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Agronomy |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31070 10.5433/1679-0359.2018v39n4p1469 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31070 |
identifier_str_mv |
10.5433/1679-0359.2018v39n4p1469 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/31070/23968 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 39 No. 4 (2018); 1469-1476 Semina: Ciências Agrárias; v. 39 n. 4 (2018); 1469-1476 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306078904647680 |