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作 者 ：王艳君;王美燕;黄荣荣

期 刊 ：植物研究 2012年 32卷 6期 页码：689-694

关键词：壳聚糖包衣；油菜；种子萌发；

Keywords:chitosan coating, Rapeseed(Brassica napus L.), seed germination, salt tolerance,

摘 要 ：以不同浓度的壳聚糖对油菜种子进行包衣处理，考察其对油菜种子萌发及幼苗耐盐性的影响，并在不同盐浓度胁迫条件下对种子萌发时的发芽势、发芽率、生物量（鲜重、干重、根长、芽长）等指标进行测定，同时分析油菜幼苗叶绿素含量、可溶性蛋白及可溶性糖含量的变化。结果表明，一定浓度的壳聚糖包衣处理可提高油菜种子发芽率、发芽势、生物量、幼苗的耐盐指数、叶绿素含量、可溶性蛋白及可溶性糖的含量，其中浓度为0.25 g·L^-1壳聚糖包衣处理对油菜种子萌发的促进效果较好，而浓度为0.50 g·L^-1壳聚糖包衣处理对提高油菜幼苗耐盐性具有较好的促进作用。

Abstract:In this study, Brassica napus L. seeds was treated by different concentrations of chitosan coating and the effect on rape seed germination and seedling salinity tolerance at different concentrations of salt stress on seed germination was studied. The germination potential, germination rate, biomass (fresh weight, dry weight, root length, shoot length) were measured, and the chlorophyll content, contents of soluble protein and soluble sugar were analyzed. The results showed that chitosan coating could increase germination potential, germination rate, biomass, salttolerance index of rapeseed seedling, chlorophyll content, contents of soluble protein and soluble sugar. The promotion effect of 0.25 g·L^-1 chitosan coating on seed germination was better, and 0.50 g·L^-1 of chitosan coating could increase the salt tolerance of rape seedling better.

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