|
Registro Completo |
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
|
Data corrente: |
16/02/2000 |
|
Data da última atualização: |
16/02/2000 |
|
Autoria: |
TARDIEU, F.; ZHANG, J.; GOWING, D. J. G. |
|
Afiliação: |
INRA, Laboratore d'Agronomie, F 78850 Thiverval Grignon, France, and University of Lancaster Division of Biological sciences, Lancaster. |
|
Título: |
Stomatal control by both [ABA] in the xylem sap and leaf water status: a test of a model for droughted or ABA-fed field-grown maize. |
|
Ano de publicação: |
1993 |
|
Fonte/Imprenta: |
Plant, Cell and Environment, v.16, p.413-420, 1993. |
|
Idioma: |
Inglês |
|
Conteúdo: |
A model of maize stomatal behaviour has been developed, in which stomatal conductance is linked to the concentration of abscisic acid ([ABD]) in the xylem sap, with a sensitivity dependent upon the leaf water potential. It was tested against two alternative hypotheses, namely that stomatal sensitivity to xylem [ABA] would be linked to the leaf-to-air vapour pressure difference (VPD), or to the flux of ABA into the leaf. Stomatal conductance (gs) was studied: in field-grown plants whose xylem [ABA] and depended on soil water status and evaporative demand; in field-grown plants fed with ABA solution such that xylem [ABA] was artificially raised, thereby decreasing gs and increasing and leaf-toair VPD; and in ABA-fed detached leaves exposed to varying demands, but with a constant and high. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01261naa a2200145 a 4500
001 1648646
005 2000-02-16
008 1993 bl --- 0-- u #d
100 1 $aTARDIEU, F.
245 $aStomatal control by both [ABA] in the xylem sap and leaf water status$ba test of a model for droughted or ABA-fed field-grown maize.
260 $c1993
520 $aA model of maize stomatal behaviour has been developed, in which stomatal conductance is linked to the concentration of abscisic acid ([ABD]) in the xylem sap, with a sensitivity dependent upon the leaf water potential. It was tested against two alternative hypotheses, namely that stomatal sensitivity to xylem [ABA] would be linked to the leaf-to-air vapour pressure difference (VPD), or to the flux of ABA into the leaf. Stomatal conductance (gs) was studied: in field-grown plants whose xylem [ABA] and depended on soil water status and evaporative demand; in field-grown plants fed with ABA solution such that xylem [ABA] was artificially raised, thereby decreasing gs and increasing and leaf-toair VPD; and in ABA-fed detached leaves exposed to varying demands, but with a constant and high.
700 1 $aZHANG, J.
700 1 $aGOWING, D. J. G.
773 $tPlant, Cell and Environment$gv.16, p.413-420, 1993.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
