16份玉米自交系的耐盐性评价

选用16份玉米自交系，采用NaCl胁迫处理，测定萌发期和幼苗期的相关生长与生理指标，对盐害指数进行聚类分析和耐盐性综合评价。结果表明，盐胁迫下，不同玉米自交系萌发期的发芽势、发芽率、胚根长、胚芽长、胚芽鲜重、胚根鲜重均呈下降趋势，幼苗期的MDA含量和相对电导率上升，相对含水量下降。87-1、8723和78599-1属于高耐盐性自交系；LX9801、TS141、A413、137、81162等属于中等耐盐自交系；廊黄、昌7-2、478和成687属于耐盐性自交系；9046和65232属于敏感性自交系；543和136属于高敏感自交系。

Comprehensive evaluation of salt tolerance in 16 Maize Inbred Lines

In this study, 16 maize inbred lines were employed to determine growth parameters at germination and seedling stage under stress. The results indicated that germination potential, germination rate, root length, shoot length, root fresh weight, shoot fresh weight decreased at germination stage, and the relative conductivity, malondialdehyde(MDA) increased, but relative water content decreased at seedling stage in different maize inbred lines under 180 mmol·L^-1 NaCl stress. Finally, we screened high salt-tolerant inbred line 87-1,8723 and 78599-1, medium salt-tolerant lines LX9801, TS141, A413,137 and 81162, salt-tolerant inbred lines Langhuang, Chang7-2,478 and Cheng687, salt-sensitive inbred line 9046 and 65232, and high salt-sensitive inbred line 543 and 136.