Abstract: Jinyou No. 3、Jinyou No. 2 and bh-8 cucumber cultivars were used as materials to study the changs of physical and chemical properties and their correlation with the yield drought index(DAI) under water stress in fruit stage,blooming fruit stage,late fruit stage. The results showed that: in early fruit stage,soluble sugar and proline content of the hardiest Jinyou No. 3 were highest,rised significantly,MDA content was lowest,rised slightly; soluble sugar content and proline conten of drought-sensitive hb-8 were lowest,rised or decrease slightly,MDA content was highest,rised significantly. In blooming fruit stage and late fruit stage,physiological and biochemical changes of cucumbers did not coincide with the drought-tolerant index. During the whole growing period soluble protein content changed slightly. Comprehensive view was changs of proline content,soluble sugar and MDA could reflect the drought resistance of cucumber to some extent,they could be used as assisted Identification of indicators of drought resistance in cucumber.

Key words: Water stress, Cucumber, Physiological and biochemical, Drought resistance

CLC Number: 

• S642.01