ACTA AGRICULTURAE BOREALI-SINICA ›› 2011, Vol. 26 ›› Issue (5): 164-169. doi: 10.7668/hbnxb.2011.05.033

Special Issue: Sweet pepper Saline-alkali stress

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Effects of KNO_3,K_2SO_4 and Their Mixed Salt Stress on the Physiological and Biochemical Characteristics of Pepper Seedling

JIANG Wei1,2, CUI Shi-mao2, ZHANG Yi-ting2, WANG Shui-xia2, WANG Jian-guo1, HU Shuan-hong1   

  1. 1. Vegetable Institute, Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Huhhot 010031, China;
    2. Agronomy College, Inner Mongolia Agricultural University, Huhhot 010018, China
  • Received:2011-03-03 Published:2011-10-28

Abstract: The effects of KNO3,K2SO4 and their mixed salt stress(0,50,100,150,200 mmol/L) on the physiological and biochemical characteristics of pepper("LiangJian" named)seedling were investigated.With the increasing concentration of salt,the results showed:shoot and root water content of pepper seedling increasing firstly and then decreasing,leaf SOD activity content first decreasing and then increasing while the POD and CAT showing a decrease-increase-decrease trend,content of Pro,soluble sugar,MDA and EC value showing increasing tendency.The effecting degree of K2SO4 on physiological and biochemical characteristics of pepper seedlings was significantly greater than KNO3 and mixing salt.

Key words: Secondary salinization, Pepper, Physiological and biochemical characteristics

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Cite this article

JIANG Wei, CUI Shi-mao, ZHANG Yi-ting, WANG Shui-xia, WANG Jian-guo, HU Shuan-hong. Effects of KNO_3,K_2SO_4 and Their Mixed Salt Stress on the Physiological and Biochemical Characteristics of Pepper Seedling[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(5): 164-169. doi: 10.7668/hbnxb.2011.05.033.

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