ACTA AGRICULTURAE BOREALI-SINICA ›› 2008, Vol. 23 ›› Issue (5): 194-197. doi: 10.7668/hbnxb.2008.05.042

Special Issue: Drought and water saving

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The Effect of Soil Drought Stress on Photosynthetic Character of Prunus armeniaca

WEI Lei, CUI Shi-mao   

  1. College of Agronomy, Inner Mongolia Agricultural University, Huhhot 010019, China
  • Received:2008-03-20 Published:2008-10-28

Abstract: In this research,The response of photosynthetic character of prunus armeniaca to soil drought stress were studied.The results show that net photosynthet ic rate(Pn),transpirat ion rate(Tr)and stomatal conductance(Cs)decreased with the increases in drought stress.Compared with control(CK),decreases of intercellular CO2concentration(Ci)under mild and moderate stress and increase under severe stress were fonnd.The test of respone of photosynthesis to temperature exhibited the decline of Pn and increase of Tr under higher temperature,and water use efficiency(WUE)decreased.The stress effects of drought were aggravated under higher temperature on photosynthesis.The diurnal variation curves of Pn,Cs and WUE were double-peak types under different water stress,but the curves of Pn and Cs were changed to single-peak types under severe stress.The conclusion is that the photosynthesis of Prunus armeniaca exhibits a certain adaptability to drought stress.

Key words: Drought stress, Photosynthetic character, Prunus armeniaca

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Cite this article

WEI Lei, CUI Shi-mao. The Effect of Soil Drought Stress on Photosynthetic Character of Prunus armeniaca[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(5): 194-197. doi: 10.7668/hbnxb.2008.05.042.

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