饲用小黑麦品种全生育期耐盐性评价

Evaluation on salt tolerance of forage triticale in whole growth period

大田模拟盐胁迫环境下,设0.1%,0.2%和0.3%及对照4个处理浓度对17个饲用小黑麦品种综合评价全生育期的耐盐性,通过生育进程及各单项指标的分析,盐胁迫使各品种的生育进程推迟,植株的存活率、株高、总茎数、地上干物重显著降低,运用标准差系数赋予权重法和耐盐指数法综合评价结果表明:NTH2597、NTH2337、NTH1888和NSHW11品种耐盐性较好,NTH2351,NTH1877和NTH2685品种耐盐性较差。

The salt tolerance of 17 forage triticale varieties in whole growth period was evaluated under 4 salt stress treatments with field experiment. The result showed that salt stress postponed the growth period, reduced the survival rate, plant ance index analysis, the of NTH2351 ,NTH187 height,stem number and above-ground dry matter accumulation. According to salt toler- salt tolerance of NTH2597, NTH2337, NTH1888 and NSHWll were stronger, and that 7 and NTH2685 were poor.