摘要
以调查统计的方法研究了矮嵩草草甸内鹅绒委陵菜无性生长特征 ,研究结果表明 :匍匐茎只有 1条的鹅绒委陵菜最多 ,占 5 2 .86 % ,匍匐茎有 4条的鹅绒委陵菜只占 4.2 9%。同一鹅绒委陵菜无性系中 ,随着匍匐茎数目的增多 ,分株数、间隔子数、茎总长和匍匐茎比节间重变小。分株一般在第二级或第三级最高 ,末级较高 ;间隔子一般以第二、第三或第四级为最长 ,最末一级较长 ,第一级最短。随鹅绒委陵菜匍匐茎数目的增多 。
The characteristic of clonal plant, Potentilla anserina were studied in alpine Kobresia humilis meadow by investigation and statistics in this paper.The results are as followed. P.anserina with one stolon is the most and its proportion is 52.86%.The proportion of P.anserina with four stolons is only 4.29%.The ramet number,spacer number,total stolon length and specific stolon internode weight are decreased with the increase of stolon number in P. anserina clone.The second or third ramet are always the highest and the end ramet is higher.The second,third or fourth spacer are the longest and the end spacer is loner while the first one is always the shortest.The total dry weight of the clone is increased slowly while the dry weight proportion of stolons and ramets for reproduction are increased with the increase of stolon number in P.anserina clone.
出处
《西北植物学报》
CAS
CSCD
2002年第1期9-17,共9页
Acta Botanica Boreali-Occidentalia Sinica
基金
中国科学院"九五"重大及特别支持项目 ( KZ95 1 -A1 -2 0 4
KZ95 1 -A1 -30 1
KZ95 T-0 4
KT95 T0 6 )
国家基础研究规划项目 ( 1 9980 4 0 80 0 )
中国科学院海北高寒草甸生态系统开放站基金资助项目
关键词
鹅绒委陵菜
无性系
生长特征
形态特征
干重分配
高寒草甸
Potentilla anserina
clone
growing characteristic
morphology characteristic
dry weight allocation
