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Irradiance, Temperature, and Salinity Effects on Growth, Leaf Anatomy, and Photosynthesis of 'Distichlis spicata' (L.) Greene

机译:辐照度,温度和盐度对'Distichlis spicata'(L.)Greene生长,叶片解剖和光合作用的影响

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摘要

The effects of irradiance, temperature, and salinity on growth, net CO2 exchange, and leaf anatomy of Distichlis spicata were investigated in controlled environment chambers. When plants were grown at low irradiance, growth rates were significantly reduced by high substrate salinity or low temperature. However, when plants were grown at high irradiance, growth rates were not significantly affected by temperature or salinity. The mechanisms by which Distichlis spicata tolerates salt appear to be closely coupled to the utilization of light energy. Salt-induced leaf succulence is of questionable importance to gas exchange at high salinity in this C4 species.

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