Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/14142 |
Resumo: | A field trial was conducted designed in a completely randomized block in a 4 x 3 factorial arrangement to evaluate the application of nitrogen doses (N) (0, 40, 80 and 160 kg/ha) on the morphogenical characteristics and dry matter partition of three forage grasses (Panicum maximum cvs. Mombasa and Tanzania and Brachiaria sp. Hybrid Mulato). The leaf appearance (LAR, leaf/day) and stretching (LER; mm/day) rates, the number of green leaves per tiller (NLT) and the average weight of tillers (MTW; g) presented s positive linear response to the N dose while the phyllochron (Phil; day/leaves) showed a negative linear response. The highest LER, IAL and final leaf length (FLL; cm) occurred in the Mombaça and Tanzania grasses, while the highest LAR occurred in the Mulato grass. There was a negative quadratic effect of the N dose on the stem elongation rate (SER; mm/day) and LF. The Mombaça and Tanzania grasses presented the highest SER; however, in just two forages. The production of total dry matter (TDM; kg/ha), leaves (LDM; kg/ha) and stems (SDM; kg/ha) increased linearly and quadratically with the N dose, respectively, for the Mombaça and Tanzania grasses. There was a high positive correlation among DM, LDM and SDM and the Mombaça grass MTW. The dry matter production and morphogenic characteristics were influenced by the nitrogen fertilization as a result of the substantial increase in the flow of tissues stimulated by fertilization, proving the importance of N for forage biomass accumulation. |
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Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization Agricultural SciencesA field trial was conducted designed in a completely randomized block in a 4 x 3 factorial arrangement to evaluate the application of nitrogen doses (N) (0, 40, 80 and 160 kg/ha) on the morphogenical characteristics and dry matter partition of three forage grasses (Panicum maximum cvs. Mombasa and Tanzania and Brachiaria sp. Hybrid Mulato). The leaf appearance (LAR, leaf/day) and stretching (LER; mm/day) rates, the number of green leaves per tiller (NLT) and the average weight of tillers (MTW; g) presented s positive linear response to the N dose while the phyllochron (Phil; day/leaves) showed a negative linear response. The highest LER, IAL and final leaf length (FLL; cm) occurred in the Mombaça and Tanzania grasses, while the highest LAR occurred in the Mulato grass. There was a negative quadratic effect of the N dose on the stem elongation rate (SER; mm/day) and LF. The Mombaça and Tanzania grasses presented the highest SER; however, in just two forages. The production of total dry matter (TDM; kg/ha), leaves (LDM; kg/ha) and stems (SDM; kg/ha) increased linearly and quadratically with the N dose, respectively, for the Mombaça and Tanzania grasses. There was a high positive correlation among DM, LDM and SDM and the Mombaça grass MTW. The dry matter production and morphogenic characteristics were influenced by the nitrogen fertilization as a result of the substantial increase in the flow of tissues stimulated by fertilization, proving the importance of N for forage biomass accumulation.EDUFU2014-06-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/14142Bioscience Journal ; Vol. 30 (2014): Supplement1; 45-54Bioscience Journal ; v. 30 (2014): Supplement 1; 45-541981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUporhttps://seer.ufu.br/index.php/biosciencejournal/article/view/14142/14479Brazil; ContemporanyCopyright (c) 2014 Deise Dalazen Castagnara, Eduardo Eustáquio Mesquita, Marcela Abbado Neres, Paulo Sérgio Rabello de Oliveira, Tiago Zoz, André Zozhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCastagnara, Deise DalazenMesquita, Eduardo EustáquioNeres, Marcela AbbadoOliveira, Paulo Sérgio Rabello deZoz, TiagoZoz, André2022-05-23T19:03:54Zoai:ojs.www.seer.ufu.br:article/14142Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-05-23T19:03:54Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization |
title |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization |
spellingShingle |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization Castagnara, Deise Dalazen Agricultural Sciences |
title_short |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization |
title_full |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization |
title_fullStr |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization |
title_full_unstemmed |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization |
title_sort |
Morphogenesis and production of tanzânia, mombaça and mulato grasses under nitrogen fertilization |
author |
Castagnara, Deise Dalazen |
author_facet |
Castagnara, Deise Dalazen Mesquita, Eduardo Eustáquio Neres, Marcela Abbado Oliveira, Paulo Sérgio Rabello de Zoz, Tiago Zoz, André |
author_role |
author |
author2 |
Mesquita, Eduardo Eustáquio Neres, Marcela Abbado Oliveira, Paulo Sérgio Rabello de Zoz, Tiago Zoz, André |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Castagnara, Deise Dalazen Mesquita, Eduardo Eustáquio Neres, Marcela Abbado Oliveira, Paulo Sérgio Rabello de Zoz, Tiago Zoz, André |
dc.subject.por.fl_str_mv |
Agricultural Sciences |
topic |
Agricultural Sciences |
description |
A field trial was conducted designed in a completely randomized block in a 4 x 3 factorial arrangement to evaluate the application of nitrogen doses (N) (0, 40, 80 and 160 kg/ha) on the morphogenical characteristics and dry matter partition of three forage grasses (Panicum maximum cvs. Mombasa and Tanzania and Brachiaria sp. Hybrid Mulato). The leaf appearance (LAR, leaf/day) and stretching (LER; mm/day) rates, the number of green leaves per tiller (NLT) and the average weight of tillers (MTW; g) presented s positive linear response to the N dose while the phyllochron (Phil; day/leaves) showed a negative linear response. The highest LER, IAL and final leaf length (FLL; cm) occurred in the Mombaça and Tanzania grasses, while the highest LAR occurred in the Mulato grass. There was a negative quadratic effect of the N dose on the stem elongation rate (SER; mm/day) and LF. The Mombaça and Tanzania grasses presented the highest SER; however, in just two forages. The production of total dry matter (TDM; kg/ha), leaves (LDM; kg/ha) and stems (SDM; kg/ha) increased linearly and quadratically with the N dose, respectively, for the Mombaça and Tanzania grasses. There was a high positive correlation among DM, LDM and SDM and the Mombaça grass MTW. The dry matter production and morphogenic characteristics were influenced by the nitrogen fertilization as a result of the substantial increase in the flow of tissues stimulated by fertilization, proving the importance of N for forage biomass accumulation. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-10 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/14142 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/14142 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/14142/14479 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporany |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 30 (2014): Supplement1; 45-54 Bioscience Journal ; v. 30 (2014): Supplement 1; 45-54 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069071968108544 |