摘要： 控制条件下用不同浓度NaCl溶液浸种研究转Bt抗虫基因玉米与其亲本种子萌发与幼苗生长状态,结果表明相同处理下,转Bt基因玉米的生长势优于受体亲本郑58,二者在发芽率上差异不显著。50,100 mmol/L NaCl对玉米的发芽、幼苗生长具有一定的促进作用,400 mmol/L NaCl降低玉米种子的活力,降低发芽率,抑制了幼苗的生长。外源Bt基因的导入对玉米耐盐性没有明显影响。

关键词: 发芽率, 盐胁迫, 耐盐性, 转Bt基因玉米, 株高, 根长

Abstract: We studied the influence on seed germination and seedling growth of transgenic corn with Bt gene and its receptor Zheng 58 by seeds soaked with different concentrations of NaCl solution and the results showed that under the same treatment,seedling physiological ecology of transgenic corn with Bt gene seemed superior to their recipient parents Zheng 58,but there was no significant differences in the germination rate.When treated with 50 mmol/L or 100 mmol/L NaCl,maize germination and seedling growth showed a certain role in promoting,while the vigor of maize seeds and germination rate reduced under treatment of 400 mmol/L NaCl,the growth of seedlings was also inhibited.Introduction of exogenous gene Bt of maize had no significant effect on the Salt tolerance.

Key words: Germination, Salinity stress, Salt tolerance, Bt corn, Seedling height, Root length

中图分类号: 

• S513