不同盐种类对黄瓜幼苗生长的影响  

Effect of the Different Kinds of Salts on Cucumber Seedling Growth

作　　者：吕杰[1] 王秀峰[1] 杨凤娟[1] 高青海[1] 

机构地区：[1]山东农业大学园艺学院,山东泰安271018

出　　处：《安徽农业科学》2006年第24期6417-6419,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金(B0471187)

摘　　要：用水培法研究了Ca(NO3)2、KNO3、NaNO3和NaCl 4种盐对黄瓜幼苗鲜重、叶面积、含水量、脯氨酸含量和膜质透性的影响。结果表明:3种NO3--N肥对黄瓜幼苗生长的抑制作用:NaNO3>KNO3>Ca(NO3)2。营养液中,随着阴离子浓度增大,植株的含水量逐渐降低,但是NaCl和Ca(NO3)2处理好于其他2种盐;4种盐处理均使黄瓜幼苗脯氨酸含量升高;对黄瓜幼苗生长的抑制作用:NaNO3>NaCl。Abstract The effect of four kinds of salt [ Ca（NO3）2, NaNO3 and NaCl] on fresh weight, leaf area, water content, praline content and membrane permeability of cucumber seedling was studied in condition of solution culture. The results showed that compared with three kinds of NO3 -N fertilizers, the inhibition effect on cucumber seedling was NaNO3 〉 KNO3 〉 Ca（NOah. The higher anion concentration of the nutrient solution was： the less the water content of the plant was, but NaCl and Ca （NO3）2 were better than other salts; four kinds of salts treatment increased the content of praline, which is beneficial to cucumber seedlings keeping water absorbing ability. At the same concentration of Na^＋, the inhibition effect on cucumber seedlings was NaNO3 〉 NaCl.

关 键 词：盐 黄瓜 盐害 

分 类 号：Q945.78[生物学—植物学]