摘要
研究了稀土元素在羊草（Ｌｅｙｍｕｓｃｈｉｎｅｎｓｉｓ）体内的富集、分布和对几种牧草种子萌发的效应．稀土溶液不同喷施次数的试验结果表明：羊草根、茎、叶内的稀土元素含量与稀土溶液喷施次数表现为正相关关系．多年喷施稀土溶液试验结果表明：稀土元素在羊草体内的富集作用不明显．稀土溶液对羊草等六种牧草种子萌发试验结果表明：稀土溶液浓度为６００μｇ／ｍｌ时，种子发芽率最高，浓度为８００μｇ／ｍｌ以上时。
The article mainly researched the effect of rare earth element the accumutation distribution in the body of Leymus chinensis and the germination of some major plant seeds.The results showed that the RE content of the roots,stem and the leaves of the Leymus chinensis have certain potative correlation with the spraying times.On the other hand, the accumulation of RE in the body of Leymus chinensis with spraying for many years was not obvious.The results of permination experiments for 6 species showed,the permination rate was highest with 600 μg/ml RE solution and the seed permination was restraimed when the concentration went beyond 800 μg/ml.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
1999年第4期497-500,共4页
Journal of Inner Mongolia University：Natural Science Edition
基金
内蒙古教育厅基金
内蒙古自然科学基金
关键词
稀土元素
喷施
富集
种子萌发
羊草
rare earth element
plant
spraying
permination
accumulation
