期刊
PHOTOSYNTHETICA
卷 40, 期 2, 页码 165-169出版社
ACAD SCI CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
DOI: 10.1023/A:1021377103775
关键词
chlorophyll content; leaf osmotic potential; net photosynthetic rate; osmotic adjustment; stomatal conductance
Leaf water potential, leaf osmotic potential, chlorophyll a and b contents, stomatal conductance, net photosynthetic rate, and water use efficiency were determined in two pistachio species (Pistacia khinjuk L. and P. mutica L.) grown under osmotic drought stress induced by a combination of NaCl and polyethylene glycol 6000. A decrease in values for all mentioned variables was observed as the osmotic potential of the nutrient solution (Psi(s)) decreased. The osmotic adjustment (DeltaPsi(pi)) of the species increased by decreasing Psi(s). Thus P. khinjuk had a higher osmotic drought stress tolerance than P. mutica.
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