Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
05/05/2014 |
|
Data da última atualização: |
19/10/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LEMOS FILHO, J. P. de; PINTO, H. S.; ROCHA NETO, O. G. da. |
|
Afiliação: |
JOSÉ PIRES DE LEMOS FILHO, UFMG; HILTON SILVEIRA PINTO, UNIVERSIDADE ESTADUAL DE CAMPINAS; OLINTO GOMES DA ROCHA NETO, CPATU. |
|
Título: |
Responses of Hevea brasiliensis Muell. Arg. plants to low temperatures under controlled conditions. |
|
Ano de publicação: |
1993 |
|
Fonte/Imprenta: |
International Journal of Biometeorology, v. 37, n. 4, p. 203-206, 1993. |
|
DOI: |
10.1007/BF01387524 |
|
Idioma: |
Inglês |
|
Conteúdo: |
In this study we have examined the responses ofHevea plants to low temperatures in growth chambers simulating winter conditions in the tropics. The low temperatures increased the leaf diffusive resistance even with a rise in the leaf temperatures toward the end of day. The total chlorophyll levels were reduced by chilling, with no changes in the chlorophyll a/b ratio. Neither organic solute nor electrolyte leakage were observed at low temperatures. These results explain the low growth rate of plants and the lack of serious chilling symptoms (necrosis) in mature leaves during winter conditions near latitude 22° S in Brazil. |
|
Palavras-Chave: |
Baixa temperatura. |
|
Thesagro: |
Clorofila; Hevea Brasiliensis. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01257naa a2200193 a 4500
001 1985577
005 2022-10-19
008 1993 bl uuuu u00u1 u #d
024 7 $a10.1007/BF01387524$2DOI
100 1 $aLEMOS FILHO, J. P. de
245 $aResponses of Hevea brasiliensis Muell. Arg. plants to low temperatures under controlled conditions.$h[electronic resource]
260 $c1993
520 $aIn this study we have examined the responses ofHevea plants to low temperatures in growth chambers simulating winter conditions in the tropics. The low temperatures increased the leaf diffusive resistance even with a rise in the leaf temperatures toward the end of day. The total chlorophyll levels were reduced by chilling, with no changes in the chlorophyll a/b ratio. Neither organic solute nor electrolyte leakage were observed at low temperatures. These results explain the low growth rate of plants and the lack of serious chilling symptoms (necrosis) in mature leaves during winter conditions near latitude 22° S in Brazil.
650 $aClorofila
650 $aHevea Brasiliensis
653 $aBaixa temperatura
700 1 $aPINTO, H. S.
700 1 $aROCHA NETO, O. G. da
773 $tInternational Journal of Biometeorology$gv. 37, n. 4, p. 203-206, 1993.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
