摘要： 以14个玉米自交系为材料，用不同浓度NaCl溶液模拟盐胁迫环境对其芽苗期耐盐性进行了鉴定。结果表明：玉米对盐胁迫非常敏感，不同盐浓度均对玉米芽苗期的发芽率、胚根长度、叶片相对含水量及净光合速率产生抑制作用；不同材料间耐盐性存在明显差异，各指标均能反映出不同材料的耐盐性；通过鉴定筛选，14个材料中，耐盐性极强的为XS98-28，耐盐性较强的为XSK5，耐盐性中等的为XSF，XS01-61，其余材料耐盐性均较弱。

关键词: 玉米, 芽苗期, 耐盐性, 鉴定, 筛选

Abstract: Maize inbreeds of 14 varieties were treated with NaCl solutions of different concentration and their salinity tolerance during seedling emergence stage were analyzed. The results were as the follows: maize inbreeds were sensitive to salt stress; different salinity stress had inhibition effects on the germination rate, shoot length, relative water content and net photosynthetic rate; different inbreed had obvious difference in salinity tolerance; the best one was XS98-28; the next was XSK5; the middle were in turn XSF, XS01-61; the lower were other inbreeds.

Key words: Maize, Seedling emergence stage, Salinity tolerance, Identification, Screening

中图分类号: 

• S513.01