| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Gas exchange and plant growth after defoliation on Leandra lacunosa, a cerrado woody species with continuous leaf production
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| Autores: |
Damascos,Maria Angélica
Ronquim,Carlos Cesar
Prado,Carlos Henrique Britto Assis
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| Data: |
2005-11-01
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| Ano: |
2005
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| Palavras-chave: |
Compensatory photosynthesis
Herbivory
Leaf age
Leaf phenology
Leandra lacunosa
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| Resumo: |
Morphological and physiological leaf traits were studied on control and defoliated potted Leandra lacunosa young plants. After defoliation, remaining bottom leaves showed no significant change in net photosynthesis and stomatal conductance values with time, but the leaf transpiration rate was higher. The production of the new leaves was greater after defoliation in top defoliated plants. Bottom defoliated plants increased stem extension rates and net photosynthesis transitorily. Two months after defoliation, control and defoliated plants did not differ in stem length and root dry mass values. In spite of smaller area and photosynthetic capacity, remaining bottom leaves were able to compensate top leaves elimination. The effectiveness of this compensatory response, however, depended on the ability of new leaves to escape from herbivores.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800013
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132005000800013
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.48 n.6 2005
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| Direitos: |
info:eu-repo/semantics/openAccess
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