Key factors that influence for seasonal production of Guinea grass
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1678-992X-2016-0413 http://hdl.handle.net/11449/160073 |
Resumo: | Climate, soil and management are the main drives for growth and production of tropical pastures. Thus, a better understanding of the effects of these factors and their interactions under climate conditions is required to obtain effective management options. Here, we used data from two field trials to research on climate and management interactions on the production seasonality of Panicum maximum Jacq. Treatments included four sampling times (250, 500, 750, and 1000 degrees C accumulated) during eight regrowth period, under irrigated and rainfed conditions and, cuts were made to simulate grazing intensity. All treatments were arranged in a completely randomized block design with four replications. At each sampling time, basal tillers were sampled to observe meristematic differentiation and were linked with the respective daylength. Soil moisture was determined, and the water availability index (WAI) was calculated. The dry matter production (DMP) was taken and relative productivity was calculated. Soil moisture was the key seasonal drive in spring-summer and the WAI could be used to adjust the maximum production for that season. The major drive for DMP in fall was the daylength, which was found at 11.81 h. For all seasons, DMP correlated better with the residues in early regrowth phase (r = 0.82 and p < 0.0001) and with degree-days at final regrowth phase (r = 0.73 p < 0.01). Applying these critical values to management guidelines should make Guinea grass DMP more efficient on tropical farms. |
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Key factors that influence for seasonal production of Guinea grassdaylengthdegree-daysmombacatropical foragewater deficitClimate, soil and management are the main drives for growth and production of tropical pastures. Thus, a better understanding of the effects of these factors and their interactions under climate conditions is required to obtain effective management options. Here, we used data from two field trials to research on climate and management interactions on the production seasonality of Panicum maximum Jacq. Treatments included four sampling times (250, 500, 750, and 1000 degrees C accumulated) during eight regrowth period, under irrigated and rainfed conditions and, cuts were made to simulate grazing intensity. All treatments were arranged in a completely randomized block design with four replications. At each sampling time, basal tillers were sampled to observe meristematic differentiation and were linked with the respective daylength. Soil moisture was determined, and the water availability index (WAI) was calculated. The dry matter production (DMP) was taken and relative productivity was calculated. Soil moisture was the key seasonal drive in spring-summer and the WAI could be used to adjust the maximum production for that season. The major drive for DMP in fall was the daylength, which was found at 11.81 h. For all seasons, DMP correlated better with the residues in early regrowth phase (r = 0.82 and p < 0.0001) and with degree-days at final regrowth phase (r = 0.73 p < 0.01). Applying these critical values to management guidelines should make Guinea grass DMP more efficient on tropical farms.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Sao Paulo State Univ, FEIS, Av Brasil 56, BR-15385000 Ilha Solteira, SP, BrazilEmbrapa Southeast Livestock, Rod Washington Luiz,Km 234 S-N, BR-13560970 Sao Carlos, SP, BrazilUniv Queensland, Queensland Alliance Agr & Food Innovat, POB 102, Toowoomba, Qld, AustraliaSao Paulo State Univ, FEIS, Av Brasil 56, BR-15385000 Ilha Solteira, SP, BrazilFAPESP: 2009/00263-6Univ Sao PaoloUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Univ QueenslandAraujo, Leandro Coelho de [UNESP]Santos, Patricia MenezesRodriguez, DanielMacedo Pezzopane, Jose Ricardo2018-11-26T15:47:24Z2018-11-26T15:47:24Z2018-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article191-196application/pdfhttp://dx.doi.org/10.1590/1678-992X-2016-0413Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 75, n. 3, p. 191-196, 2018.1678-992Xhttp://hdl.handle.net/11449/16007310.1590/1678-992X-2016-0413S0103-90162018000300191WOS:000424389600003S0103-90162018000300191.pdf03876309007214370000-0002-4879-4167Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientia Agricolainfo:eu-repo/semantics/openAccess2023-10-23T06:11:56Zoai:repositorio.unesp.br:11449/160073Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-23T06:11:56Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Key factors that influence for seasonal production of Guinea grass |
title |
Key factors that influence for seasonal production of Guinea grass |
spellingShingle |
Key factors that influence for seasonal production of Guinea grass Araujo, Leandro Coelho de [UNESP] daylength degree-days mombaca tropical forage water deficit |
title_short |
Key factors that influence for seasonal production of Guinea grass |
title_full |
Key factors that influence for seasonal production of Guinea grass |
title_fullStr |
Key factors that influence for seasonal production of Guinea grass |
title_full_unstemmed |
Key factors that influence for seasonal production of Guinea grass |
title_sort |
Key factors that influence for seasonal production of Guinea grass |
author |
Araujo, Leandro Coelho de [UNESP] |
author_facet |
Araujo, Leandro Coelho de [UNESP] Santos, Patricia Menezes Rodriguez, Daniel Macedo Pezzopane, Jose Ricardo |
author_role |
author |
author2 |
Santos, Patricia Menezes Rodriguez, Daniel Macedo Pezzopane, Jose Ricardo |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Univ Queensland |
dc.contributor.author.fl_str_mv |
Araujo, Leandro Coelho de [UNESP] Santos, Patricia Menezes Rodriguez, Daniel Macedo Pezzopane, Jose Ricardo |
dc.subject.por.fl_str_mv |
daylength degree-days mombaca tropical forage water deficit |
topic |
daylength degree-days mombaca tropical forage water deficit |
description |
Climate, soil and management are the main drives for growth and production of tropical pastures. Thus, a better understanding of the effects of these factors and their interactions under climate conditions is required to obtain effective management options. Here, we used data from two field trials to research on climate and management interactions on the production seasonality of Panicum maximum Jacq. Treatments included four sampling times (250, 500, 750, and 1000 degrees C accumulated) during eight regrowth period, under irrigated and rainfed conditions and, cuts were made to simulate grazing intensity. All treatments were arranged in a completely randomized block design with four replications. At each sampling time, basal tillers were sampled to observe meristematic differentiation and were linked with the respective daylength. Soil moisture was determined, and the water availability index (WAI) was calculated. The dry matter production (DMP) was taken and relative productivity was calculated. Soil moisture was the key seasonal drive in spring-summer and the WAI could be used to adjust the maximum production for that season. The major drive for DMP in fall was the daylength, which was found at 11.81 h. For all seasons, DMP correlated better with the residues in early regrowth phase (r = 0.82 and p < 0.0001) and with degree-days at final regrowth phase (r = 0.73 p < 0.01). Applying these critical values to management guidelines should make Guinea grass DMP more efficient on tropical farms. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26T15:47:24Z 2018-11-26T15:47:24Z 2018-05-01 |
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/10.1590/1678-992X-2016-0413 Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 75, n. 3, p. 191-196, 2018. 1678-992X http://hdl.handle.net/11449/160073 10.1590/1678-992X-2016-0413 S0103-90162018000300191 WOS:000424389600003 S0103-90162018000300191.pdf 0387630900721437 0000-0002-4879-4167 |
url |
http://dx.doi.org/10.1590/1678-992X-2016-0413 http://hdl.handle.net/11449/160073 |
identifier_str_mv |
Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 75, n. 3, p. 191-196, 2018. 1678-992X 10.1590/1678-992X-2016-0413 S0103-90162018000300191 WOS:000424389600003 S0103-90162018000300191.pdf 0387630900721437 0000-0002-4879-4167 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientia Agricola |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
191-196 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Sao Paolo |
publisher.none.fl_str_mv |
Univ Sao Paolo |
dc.source.none.fl_str_mv |
Web of Science 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 |
|
_version_ |
1799964673693450240 |