Effects of Low Temperature Stress on Photosynthetic Characteristics in Leaves of Eggplant Seedlings

doi:10.7668/hbnxb.2008.05.040

Abstract

Abstract: Effects of low temperature stress on photosynthetic characteristics in leaves of eggplant(Solanum melongena L.)seedlings of 702 were studied.The results showed that chlorophyll contents,chlorophyll a/b,net photosynthetic rate(Pn),stomatalconductance(Gs),transpiration rate(Tr),light saturation point(LSP),photosynthetic rate at light saturation point,apparent quantum yield(AQY),CO₂saturation point(CSP),carboxylation efficiency(CE)and maximum RuBP regeneration rate were decreased;Light compensation point(LCP),CO₂compensation point(CCP)were increased,and intercellular CO₂concentration(Ci)were decreased in the former period,and then increased.The results suggested photochemical structure of eggplant seedlings was damaged under low temperature stress.

Key words: Low temperature stress, Eggplant seedlings, Photosynthetic characteristics

CLC Number:

S641.101

WU Xue-xia, CHEN Jian-lin, ZHA Ding-shi. Effects of Low Temperature Stress on Photosynthetic Characteristics in Leaves of Eggplant Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(5): 185-189. doi: 10.7668/hbnxb.2008.05.040.

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http://www.hbnxb.net/EN/Y2008/V23/I5/185

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