研究燕麦和小黑麦种子萌发和幼苗生长对不同浓度盐胁迫的反应.结果表明:燕麦和小黑麦的种子发芽率、芽长和根长随盐浓度增加而降低,而且盐胁迫对小黑麦发芽率的影响大于对燕麦的影响.与对照相比,当盐浓度为0.0％、0.2％、0.4％、0.6％、0.8％、1.0％、1.2％、1.6％和2.0％时,燕麦种子发芽率分别为76％、81％、73％、79％、71％、69％、53％、38％和26％,小黑麦种子发芽率分别为85％、79％、51％、47％、33％、29％、1％、0％和0％.通过回归分析,燕麦种子发芽率和根长忍受极限盐浓度分别为3.13％和1.62％,小黑麦种子发芽率和根长忍受极限盐浓度分别为1.82％和1.59％.此值对盐碱地筛选燕麦和小黑麦品种具有一定参考价值.%Seed germination,bud length and root length of oat and triticale under different salt stress conditions were studied.The results showed that seed germination,bud length and root length of oat and triticale decreased with concentrations of NaCl solution.And the effects on triticale were greater than oat.Compared with control (salt concentration was 0.0％),the seed germination rates were,76 ％,81％,73％,79％,71％,69％,53％,38％ and 26％ for oat under 0.2％,0.4％,0.6％,0.8％,1.0％,1.2％,1.6％ and 2.0％ of NaCl solution conditions respectively,and 85 ％,79％,51％,47％,33％,29％,1％,0％ and 0％ for triticale.The maximum tolerant NaCl concentrations for seed germination and root of oat were 3.13％ and 1.62％ respectively,and they were 1.64％ and 1.44％ respectively for triticale.
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