Effect of Water Stress on the Anti-oxidative Enzyme Activity and Root Vigor of Isatis indigotica Root in Different Regions in Seeding

doi:10.3321/j.issn:1000-7091.2006.05.006

Abstract

Abstract: In order to determine the effect of water stress by PEG on three varieties of Isatis indigotica from different regions,the activity of anti-oxidative enzymes of seedling leaves and root vigor were assessed by measuring physiological characters.The results showed that physiological and biochemical indexes of root changed greatly under-0.4 Mp of PEG.The activities of anti-oxidative enzymes including SOD,CAT and POD increased in early and middle stage of water stress,and decreased in final period.The root vigor decreased with the increase of degree and time of water stress.The drought tolerance of the variety from Anhui province was better than that from Shanxi Province and Shaanxi Province.

Key words: Water stress, Isatis indigotica, Seedling, Physiological and biochemical charaters, Root vigor

CLC Number:

S567

TAN Yong, LIANG Zong-suo, DONG Juan-e, ZHAO Zhi-xin. Effect of Water Stress on the Anti-oxidative Enzyme Activity and Root Vigor of Isatis indigotica Root in Different Regions in Seeding[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(5): 20-23. doi: 10.3321/j.issn:1000-7091.2006.05.006.

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