草业学报2011，Vol.20Issue(1)：155-160,6.
硅对紫花苜蓿种子萌发及幼苗生长发育的影响
Effects of silicon addition on seed germination and seedling growth of alfalfa
摘要
Abstract
A previous pot experiment indicated that silicon addition encouraged alfalfa plants to grow and increased the biomass. Effects of silicon addition on seed germination and seedling growth of alfalfa using a water culture experiment were investigated in this study. Silicon addition had no effect on initial time of seed germination or on final germination rate. However, it enabled seeds to germinate faster and enhanced germination in dex, vigor index and germination energy, implying that silicon addition did not improve seed quality but did improve seed vitality. There were different responses of shoot and root lengths of alfalfa seedlings to silicon addition, indicating that silicon addition significantly increased the shoot length of alfalfa seedlings (P＜0.05), but did not affect root length. Silicon addition increased the biomass of alfalfa seedlings (P＜0.05). The concentration of silicon solution was not related to germination index, germination energy, length of shoot and root, or biomass of seedlings. Silicon is directly involved in the physiological process of seed germination and seedling growth of alfalfa.关键词
初始萌发时间/总发芽率/茎叶/根/生物量Key words
initial germination time/ total germination percentage/ shoots/ roots/ biomass分类
农业科技引用本文复制引用
刘慧霞,申晓蓉,郭正刚..硅对紫花苜蓿种子萌发及幼苗生长发育的影响[J].草业学报,2011,20(1):155-160,6.基金项目
国家自然科学基金(30900173)和中国博士后科学基金(20060390191 （30900173）
200801242)资助. （）
