高山红景天不同性别植株形态的比较研究

目的]进一步了解高山红景天不同性别间的形态特点。方法]以栽培高山红景天和野生高山红景天为材料，进行高山红景天不同性别植株形态的比较研究。结果]结果表明，高山红景天不同性别间形态有一定的差异，株高雌株略高于雄株，主茎叶片数雄株多于雌株．叶片形态雄株比雌株狭长且薄、两性植株叶片较宽，茎粗雄株比雌株细，茎数雄株明显多于雌株，地下部根茎粗、根茎长和根茎数等性状雄株均大于雌株。结论]该研究为高山红景天的性别分化机理、组织培养和遗传育种研究提供基础理论依据。

Comparison Study on the Morphologic Characters of Different Sexual Rhodiola sachalinensis A.Bor

Objective]The purpose of this research was to future realize the morphologic characters of different sexual Rhodiola sachalinensis A.Bor.Method]This experiment used cultivated Rhodiola sachalinensis A.Bor and wild Rhodiola sachalinensis A.Bor as the experiment materials,the comparison of characters of different sexual Rhodiola sachalinensis A.Bor were studied.Result]The results showed that among different sexual Rhodiola sachalinensis A.Bor had differences on morphology.The pistillate plant was slightly higher than that of staminiferous plant.The number of the pistillate leaf blades was more than that of staminiferous plant.The pistillate leaf blades were narrower,longer and thinner than that of the staminiferous ones.The staminiferous stems were thinner than the pistillate plant stems.The number of the staminiferous stalk was obvious more than that of the pistillate plant.The diameter and length of the staminiferous rootstalk was longer than that of the pistillate plant.The number of the staminiferous rootstalks was more than that of the pistillate plant.Conclusion]This research will provide basically theoretical references for studying sex differentiation mechanism,tissue culture and genetic breeding.