<b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypes
Changes in leaf anatomy were evaluated in genotypes of Brachiaria brizantha, Brachiaria decumbens, Brachiaria ruziziensis and three Brachiaria ruziziensis clones through tissue proportion in internerval and midrib regions at three regrowth ages. Plants were grown and cutting was performed after 60 d...
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Universidade Estadual de Maringá
2018-04-01
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doaj-4fd55127826c46cda263011965cd1a952020-11-25T02:10:43ZengUniversidade Estadual de MaringáActa Scientiarum : Biological Sciences1679-92831807-863X2018-04-01401e39369e3936910.4025/actascibiolsci.v40i1.3936918572<b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypesJanaína Mauri0Gabrielle Avelar Silva1Daniele Laís Pereira2Vânia Helena Techio3Lisete Chamma Davide4Fausto Souza Sobrinho5Fabrício José Pereira6Universidade Federal de LavrasUniversidade Federal de LavrasUniversidade Federal de LavrasUniversidade Federal de LavrasUniversidade Federal de LavrasEmpresa Brasileira de Pesquisa AgropecuáriaUniversidade Federal de AlfenasChanges in leaf anatomy were evaluated in genotypes of Brachiaria brizantha, Brachiaria decumbens, Brachiaria ruziziensis and three Brachiaria ruziziensis clones through tissue proportion in internerval and midrib regions at three regrowth ages. Plants were grown and cutting was performed after 60 days. Further, leaves were sampled at 8, 15 and 29 regrowth days and processed with usual plant microtechnique. The internerval region showed higher parenchyma percentage at 15 days for Clone 95 and similar values at 15 and 29 days for Clone 1. The proportion of vascular bundles was lower after 15 days in Clones 1 and 95 and 29 days in B. brizantha. In the midrib, the parenchyma proportion was higher at 29 days in B. brizantha and lower at 15 days in B. ruziziensis. The proportion of vascular bundles was higher at 8 days in B. decumbens, B. brizantha and Clone 1, and lower at 29 days for Clones 97 and 95 and at 8 days in B. ruziziensis. Therefore, the regrowth age modifies the percentage of leaf tissues in Brachiaria genotypes, in which the fibers and vascular bundles increase at 29 days and 8-day-old leaves are not fully developed.http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39369digestibilityligninaUrochloaBrachiaria brizanthaBrachiaria decumbensBrachiaria ruziziensis. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Janaína Mauri Gabrielle Avelar Silva Daniele Laís Pereira Vânia Helena Techio Lisete Chamma Davide Fausto Souza Sobrinho Fabrício José Pereira |
spellingShingle |
Janaína Mauri Gabrielle Avelar Silva Daniele Laís Pereira Vânia Helena Techio Lisete Chamma Davide Fausto Souza Sobrinho Fabrício José Pereira <b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypes Acta Scientiarum : Biological Sciences digestibility lignina Urochloa Brachiaria brizantha Brachiaria decumbens Brachiaria ruziziensis. |
author_facet |
Janaína Mauri Gabrielle Avelar Silva Daniele Laís Pereira Vânia Helena Techio Lisete Chamma Davide Fausto Souza Sobrinho Fabrício José Pereira |
author_sort |
Janaína Mauri |
title |
<b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypes |
title_short |
<b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypes |
title_full |
<b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypes |
title_fullStr |
<b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypes |
title_full_unstemmed |
<b>Regrowth age modifies the leaf anatomy of <i>Brachiaria</i> genotypes |
title_sort |
<b>regrowth age modifies the leaf anatomy of <i>brachiaria</i> genotypes |
publisher |
Universidade Estadual de Maringá |
series |
Acta Scientiarum : Biological Sciences |
issn |
1679-9283 1807-863X |
publishDate |
2018-04-01 |
description |
Changes in leaf anatomy were evaluated in genotypes of Brachiaria brizantha, Brachiaria decumbens, Brachiaria ruziziensis and three Brachiaria ruziziensis clones through tissue proportion in internerval and midrib regions at three regrowth ages. Plants were grown and cutting was performed after 60 days. Further, leaves were sampled at 8, 15 and 29 regrowth days and processed with usual plant microtechnique. The internerval region showed higher parenchyma percentage at 15 days for Clone 95 and similar values at 15 and 29 days for Clone 1. The proportion of vascular bundles was lower after 15 days in Clones 1 and 95 and 29 days in B. brizantha. In the midrib, the parenchyma proportion was higher at 29 days in B. brizantha and lower at 15 days in B. ruziziensis. The proportion of vascular bundles was higher at 8 days in B. decumbens, B. brizantha and Clone 1, and lower at 29 days for Clones 97 and 95 and at 8 days in B. ruziziensis. Therefore, the regrowth age modifies the percentage of leaf tissues in Brachiaria genotypes, in which the fibers and vascular bundles increase at 29 days and 8-day-old leaves are not fully developed. |
topic |
digestibility lignina Urochloa Brachiaria brizantha Brachiaria decumbens Brachiaria ruziziensis. |
url |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39369 |
work_keys_str_mv |
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1724917993199108096 |