期刊
COMPTES RENDUS BIOLOGIES
卷 329, 期 2, 页码 98-105出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crvi.2005.11.006
关键词
chlorophyll fluorescence; water deficit; leaf water potential; Olea europaea L.
类别
The effect of the water deficit, on two olive tree varieties 'Chetoui' and 'Chemlali' at the level of photosystem II photochemistry (PSII) was studied through the following parameters: leaf water potential ((psi)Hb), quantum yield of PSII (Phi PSII), maximum quantum yield of PSII (Phi(max) PSII), electron transfer rate (J(T)) and photochemical quenching (qP). The results obtained show a reduction in the leaf water potential and a decrease in quantum efficiency of PSII. Besides, electron transfer rate and photochemical quenching showed an increase in response to water deficit. These modifications present some differences according to the variety. These observations are discussed in relation to the strategies developed to grow drought-resistant olive trees in and areas.
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