<b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) Morong
Enterolobium contortisiliquum occurs in native forests formations from southeast to northeast Brazil, and too in Argentina, Bolivia and Paraguay. The objective of this study was to evaluate shading effects in the early growth of E. contortisiliquum plants. We measured leaf gas exchange, chlorophyll...
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doaj-64bc773f20974ec6a3af24fe2dfc14c92020-11-25T01:41:01ZengUniversidade Estadual de MaringáActa Scientiarum : Biological Sciences1679-92831807-863X2017-05-0139111312210.4025/actascibiolsci.v39i1.3340015338<b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) MorongJoão Paulo Souza0Nayara Magry Jesus Melo1Alessandro Dias Halfed2Jéssica Naiara Reis3Universidade Federal de ViçosaUniversidade Federal de São CarlosUniversidade Federal de ViçosaUniversidade Federal de ViçosaEnterolobium contortisiliquum occurs in native forests formations from southeast to northeast Brazil, and too in Argentina, Bolivia and Paraguay. The objective of this study was to evaluate shading effects in the early growth of E. contortisiliquum plants. We measured leaf gas exchange, chlorophyll content index, biomass allocation and leaf development in plants in sunny and shaded areas. The experiment was performed in Universidade Federal de Viçosa, campus Florestal, Minas Gerais, Brazil. To determine the effects of different light regimes (full sunlight and shade) on the growth of E. contortisiliquum plants, we divided plants into two groups: plants grown in a greenhouse under full sunlight, and plants grown under 70% shade tissue. E. contortisiliquum plants grown in full sunlight showed an increase in maximum net photosynthesis, root, stem, and leaf dry mass, root length, root/stem ratio, and length of the stem. However, E. contortisiliquum under shade showed larger specific leaf area, leaf area ratio, chlorophyll content, long leaf life span, and slow growth. These ecophysiological adjustments in sunny and shaded areas may explain the wide geographical distribution of E. contortisiliquum in many vegetation types.http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/33400leaf arealeaf developmentmaximum net photosynthesis. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
João Paulo Souza Nayara Magry Jesus Melo Alessandro Dias Halfed Jéssica Naiara Reis |
spellingShingle |
João Paulo Souza Nayara Magry Jesus Melo Alessandro Dias Halfed Jéssica Naiara Reis <b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) Morong Acta Scientiarum : Biological Sciences leaf area leaf development maximum net photosynthesis. |
author_facet |
João Paulo Souza Nayara Magry Jesus Melo Alessandro Dias Halfed Jéssica Naiara Reis |
author_sort |
João Paulo Souza |
title |
<b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) Morong |
title_short |
<b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) Morong |
title_full |
<b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) Morong |
title_fullStr |
<b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) Morong |
title_full_unstemmed |
<b>Shading effects on leaf life span and functional traits in the widespread species <i>Enterolobium contortisiliquum<i> (Vell.) Morong |
title_sort |
<b>shading effects on leaf life span and functional traits in the widespread species <i>enterolobium contortisiliquum<i> (vell.) morong |
publisher |
Universidade Estadual de Maringá |
series |
Acta Scientiarum : Biological Sciences |
issn |
1679-9283 1807-863X |
publishDate |
2017-05-01 |
description |
Enterolobium contortisiliquum occurs in native forests formations from southeast to northeast Brazil, and too in Argentina, Bolivia and Paraguay. The objective of this study was to evaluate shading effects in the early growth of E. contortisiliquum plants. We measured leaf gas exchange, chlorophyll content index, biomass allocation and leaf development in plants in sunny and shaded areas. The experiment was performed in Universidade Federal de Viçosa, campus Florestal, Minas Gerais, Brazil. To determine the effects of different light regimes (full sunlight and shade) on the growth of E. contortisiliquum plants, we divided plants into two groups: plants grown in a greenhouse under full sunlight, and plants grown under 70% shade tissue. E. contortisiliquum plants grown in full sunlight showed an increase in maximum net photosynthesis, root, stem, and leaf dry mass, root length, root/stem ratio, and length of the stem. However, E. contortisiliquum under shade showed larger specific leaf area, leaf area ratio, chlorophyll content, long leaf life span, and slow growth. These ecophysiological adjustments in sunny and shaded areas may explain the wide geographical distribution of E. contortisiliquum in many vegetation types. |
topic |
leaf area leaf development maximum net photosynthesis. |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/33400 |
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