Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking.
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Publication Date: | 2021 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Download full: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133498 https://doi.org/10.37496/rbz5020200225 |
Summary: | This work evaluated the productive and structural characteristics of the BRS Zuri and BRS Quênia cultivars under rotational stocking management. The evaluations were divided into five periods according to rainfall regime (high, medium, and low rainfall) during 16 months of the years 2016-2018. Pastures were grazed when canopies intercepted 95% of incident light to stubbles corresponding to 50% of the pre-grazing height. The pre- and post-grazing heights varied as a function of cultivar, with higher values for BRS Zuri (89 and 49 cm) than for BRS Quênia (78 and 45 cm). No differences in canopy lowering percentage, forage mass, and stem and dead material dry masses between cultivars were observed, with averages of 41.3%, 5,856, 1,835, and 841 kg ha?1, respectively. The post-grazing canopy height was lower in the second year, which resulted in higher values of canopy lowering percentage (51%). The highest value for leaf:stem ratio for both cultivars was observed in the high rainfall period of the second year. Higher average tiller population density was observed for BRS Quênia (477 tillers m?2) than for BRS Zuri (260 tillers m?2) for all the rainfall periods. Forage bulk density was similar between cultivars and varied according to the periods evaluated, with the highest value observed during the dry period of the year. Forage mass, as well as its component fractions, did not vary between cultivars, but was influenced by the studied periods. The cultivars showed high leaf mass in the pre-grazing forage mass with an average value of 3,174 kg ha?1. The cultivars are similar in morphological composition and offer high yield potential when managed under a rotational grazing system. |
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Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking.BRS ZuriBRS QuêniaLotação rotativaForragemCapimPastejo RotativoThis work evaluated the productive and structural characteristics of the BRS Zuri and BRS Quênia cultivars under rotational stocking management. The evaluations were divided into five periods according to rainfall regime (high, medium, and low rainfall) during 16 months of the years 2016-2018. Pastures were grazed when canopies intercepted 95% of incident light to stubbles corresponding to 50% of the pre-grazing height. The pre- and post-grazing heights varied as a function of cultivar, with higher values for BRS Zuri (89 and 49 cm) than for BRS Quênia (78 and 45 cm). No differences in canopy lowering percentage, forage mass, and stem and dead material dry masses between cultivars were observed, with averages of 41.3%, 5,856, 1,835, and 841 kg ha?1, respectively. The post-grazing canopy height was lower in the second year, which resulted in higher values of canopy lowering percentage (51%). The highest value for leaf:stem ratio for both cultivars was observed in the high rainfall period of the second year. Higher average tiller population density was observed for BRS Quênia (477 tillers m?2) than for BRS Zuri (260 tillers m?2) for all the rainfall periods. Forage bulk density was similar between cultivars and varied according to the periods evaluated, with the highest value observed during the dry period of the year. Forage mass, as well as its component fractions, did not vary between cultivars, but was influenced by the studied periods. The cultivars showed high leaf mass in the pre-grazing forage mass with an average value of 3,174 kg ha?1. The cultivars are similar in morphological composition and offer high yield potential when managed under a rotational grazing system.PRISCILA DORNELAS VALOTE, Universidade Federal Rural do Rio de Janeiro; CARLOS AUGUSTO BRANDÃO DE CARVALHO, Universidade Federal Rural do Rio de Janeiro; CÁSSIA APARECIDA SOARES FREITAS, Universidade Federal de Viçosa; MIRTON JOSE FROTA MORENZ, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL.VALOTE, P. D.CARVALHO, C. A. B. deFREITAS, C. A. S.MORENZ, M. J. F.PACIULLO, D. S. C.GOMIDE, C. A. de M.2021-08-12T16:00:26Z2021-08-12T16:00:26Z2021-08-122021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Zootecnia, v. 50, e20200225, 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133498https://doi.org/10.37496/rbz5020200225enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2021-08-12T16:00:38Zoai:www.alice.cnptia.embrapa.br:doc/1133498Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-08-12T16:00:38falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-08-12T16:00:38Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. |
title |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. |
spellingShingle |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. VALOTE, P. D. BRS Zuri BRS Quênia Lotação rotativa Forragem Capim Pastejo Rotativo |
title_short |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. |
title_full |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. |
title_fullStr |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. |
title_full_unstemmed |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. |
title_sort |
Forage mass and canopy structure of Zuri and Quênia guineagrasses pasture under rotational stocking. |
author |
VALOTE, P. D. |
author_facet |
VALOTE, P. D. CARVALHO, C. A. B. de FREITAS, C. A. S. MORENZ, M. J. F. PACIULLO, D. S. C. GOMIDE, C. A. de M. |
author_role |
author |
author2 |
CARVALHO, C. A. B. de FREITAS, C. A. S. MORENZ, M. J. F. PACIULLO, D. S. C. GOMIDE, C. A. de M. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
PRISCILA DORNELAS VALOTE, Universidade Federal Rural do Rio de Janeiro; CARLOS AUGUSTO BRANDÃO DE CARVALHO, Universidade Federal Rural do Rio de Janeiro; CÁSSIA APARECIDA SOARES FREITAS, Universidade Federal de Viçosa; MIRTON JOSE FROTA MORENZ, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL. |
dc.contributor.author.fl_str_mv |
VALOTE, P. D. CARVALHO, C. A. B. de FREITAS, C. A. S. MORENZ, M. J. F. PACIULLO, D. S. C. GOMIDE, C. A. de M. |
dc.subject.por.fl_str_mv |
BRS Zuri BRS Quênia Lotação rotativa Forragem Capim Pastejo Rotativo |
topic |
BRS Zuri BRS Quênia Lotação rotativa Forragem Capim Pastejo Rotativo |
description |
This work evaluated the productive and structural characteristics of the BRS Zuri and BRS Quênia cultivars under rotational stocking management. The evaluations were divided into five periods according to rainfall regime (high, medium, and low rainfall) during 16 months of the years 2016-2018. Pastures were grazed when canopies intercepted 95% of incident light to stubbles corresponding to 50% of the pre-grazing height. The pre- and post-grazing heights varied as a function of cultivar, with higher values for BRS Zuri (89 and 49 cm) than for BRS Quênia (78 and 45 cm). No differences in canopy lowering percentage, forage mass, and stem and dead material dry masses between cultivars were observed, with averages of 41.3%, 5,856, 1,835, and 841 kg ha?1, respectively. The post-grazing canopy height was lower in the second year, which resulted in higher values of canopy lowering percentage (51%). The highest value for leaf:stem ratio for both cultivars was observed in the high rainfall period of the second year. Higher average tiller population density was observed for BRS Quênia (477 tillers m?2) than for BRS Zuri (260 tillers m?2) for all the rainfall periods. Forage bulk density was similar between cultivars and varied according to the periods evaluated, with the highest value observed during the dry period of the year. Forage mass, as well as its component fractions, did not vary between cultivars, but was influenced by the studied periods. The cultivars showed high leaf mass in the pre-grazing forage mass with an average value of 3,174 kg ha?1. The cultivars are similar in morphological composition and offer high yield potential when managed under a rotational grazing system. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-12T16:00:26Z 2021-08-12T16:00:26Z 2021-08-12 2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Revista Brasileira de Zootecnia, v. 50, e20200225, 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133498 https://doi.org/10.37496/rbz5020200225 |
identifier_str_mv |
Revista Brasileira de Zootecnia, v. 50, e20200225, 2021. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133498 https://doi.org/10.37496/rbz5020200225 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503508208123904 |