Data/hora: 13/06/2024 00:15:34

Provedor de dados: | 3
País: | Brazil
Título: | Shading effects on leaf life span and functional traits in the widespread species Enterolobium contortisiliquum (Vell.) Morong
Autores: | Souza, João Paulo; Melo, Nayara Magry Jesus; Halfeld, Alessandro Dias; Reis, Jéssica Naiara.
Data: | 2017-05-03
Ano: | 2017
Palavras-chave: | 2.05.00.00-9 leaf area; Leaf development; Maximum net photosynthesis. Ecologia Vegetal.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/33400

10.4025/actascibiolsci.v39i1.33400

Editor: | Universidade Estadual De Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/33400/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/downloadSuppFile/33400/13223

Formato: | application/pdf

Fonte:

Acta Scientiarum. Biological Sciences; v. 39, n. 1 (2017); 113-122

Acta Scientiarum. Biological Sciences; v. 39, n. 1 (2017); 113-122

1807-863X

1679-9283

Fonte: | Direitos autorais 2017 Acta Scientiarum. Biological Sciences