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Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (28): 13-17.doi: 10.11924/j.issn.1000-6850.2014-0917

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Comparison of Drought Resistance Mechanism of Five Shrubs

  

  • Received:2014-04-01 Revised:2014-04-01 Accepted:2014-09-05 Online:2014-10-15 Published:2014-10-15

Abstract: In order to supply a more theoretical basis for the selection of drought resistance shrubs in Ulanbuh Desert, under different soil moisture, the drought resistant indexes of Caragana korshinskii, Artemisia sphaerocephala, Calligonum mongolicum, Nitraria tangutorum and Hedysannn scoparium in Ulan Buh Desert were measured. Comprehensive analysis of drought resistance of five shrubs was conducted with principal component analysis. The results were as follows: (1) under different soil moisture, water deficit, bound water content, ratio of bound water to free water and chlorophyll content of Caragana korshinskii were higher than that of the other shrubs; (2) water physiology index of five shrubs were synthetically evaluated with the method of principal component analysis, the drought resistance order of the five shrubs were as follows: Caragana korshinskii>Nitraria tangutorum>Calligonum mongolicum>Hedysannn scoparium>Artemisia sphaerocephala.