摘要
在温室中采用槽式栽培方法,以耐盐黄瓜品种津春5号和盐敏感黄瓜品种津优1号为试材,用浓度为525mg·kg-1的NaCl处理土壤,研究NaCl胁迫对不同耐盐黄瓜品种生长状况及根区土壤酶活性的影响。结果表明:NaCl胁迫下盐敏感品种津优1号的单株产量和全株干质量均显著低于耐盐品种津春5号;随着黄瓜生长,盐敏感品种津优1号定植后50d的叶面积和定植后40d的土壤脱氢酶活性均显著低于耐盐品种津春5号;NaCl胁迫条件下,定植后30d、40d耐盐品种津春5号土壤脲酶、过氧化氢酶和脱氢酶活性较盐敏感品种津优1号受抑制程度轻,受盐害程度低,但差异未达到显著水平。
Salt-tolerant cucumber(Cucumis sativus L.)cultivar‘Jinchun No.5’and salt-sensitive cucumber cultivar‘Jinyou No.1’were used as materials.Taking NaCl(525 mg?kg-1)as salt-stress condition,the tanks are used to culture 2 different cucumber cultivars in the greenhouse.We compared the effect of growth and soil enzyme activities of these 2 different cucumbers in the root zone.The results show that the yield per plant and dry weight of salt-sensitive cucumber cultivar‘Jinyou No.1’is significantly lower than that of salt-tolerant cucumber cultivar‘Jinchun No.5’.And the leaf area of‘Jinyou No.1’after transplanting 50 d and soil dehydrogenase activity after transplanting 40 d are significantly lower than‘Jinchun No.5’.Under soil salinization condition,the inhibited urease,catalase and dehydrogenase activity of salt-tolerant varieties‘Jinchun No.5’are lighter than that of salt-sensitive varieties‘Jinyou No.1’in rhizospher after transplanting 30 d,40 d.
出处
《中国蔬菜》
北大核心
2012年第05X期48-55,共8页
China Vegetables
基金
国家"973"计划项目(2009CB119004-05)
