【作者】 伏兵哲； 米福贵； 赵妍；

【Author】 FU Bing-zhe MI Fu-gui Zhao Yan (College of Ecology and Environment,Inner Mongolia Agricultural University,Hohhot 010019,China)

【机构】 内蒙古农业大学生态环境学院；

【摘要】 本论文通过对串叶松香草不同驯化世代的越冬率、形态特征及生产性能方面进行研究。研究结果表明:串叶松香单经过驯化以后其越冬率有了明显的提高,其中生长1年的越冬率由原始代(M0)的59.21%提高到了M3代的91.02%。生长2年的越冬率由原始代(M0)的80%提高到了M2代的92%。串叶松香草不同驯化世代在根颈长、基生叶柄长、根颈粗、基生叶宽、茎生叶宽和株高上有明显差异。串叶松香草的产草量、鲜干比、千粒重和种子产量在不同驯化世代存在较大差异,其中产草量、千粒重和种子产量随驯化世代的增加呈上升趋势。更多还原

【Abstract】 The overwintering rate,morphological characteristics and production performance among different generations of Silphium perfoliatum were investigated in this paper.The result showed:The overwintering rate of S.perfoliatum has been increased significantly after domesticated.After one year growth,the overwintering rate improved from 59.21%of original genneration to 91.02%of third generation.After two years growth,the overwintering rate improved from 80%of original generation to 92%of second generation.Significant differences were found among different domesticated generations of S.perfoliatum in the root crown length,root crown diameter,basal petiole length,basal leaf width,stem leaf width and plant height.Differences among different domesticated generations of S.perfoliatum were quite apparent in grass production,fresh and dry ratio, 1000-grain weight and seed yield,in which grass production,1000-grain weight and seed yield had increased with the inreasing of domesticated generations.更多还原