摘要
通过对两生境小花碱茅独立分蘖丛的取样调查,定量地分析了松嫩平原小花碱茅无性系的数量特征。结果表明,打草地小花碱茅营养株数量是保护样地的1.33倍,保护样地生殖株数量、分蘖苗数量分别为打草样地的1.71倍、1.11倍,表明打草有利于营养生长。两样地小花碱茅无性系分蘖株数量、生物量与丛径之间均呈直线正相关系,其相关系数均达到了极显著水平(P<0.01)。
In this paper,we quantitatively analyzed the number properties of clones of Puccinelilia tenuiflora in Song- Nen Plain by samphng and investigating two habits of them. The results showed that the number of vegetative strains in the cutting- grass- samples was 1.33 times than that in the reserve-samples for the P. tenuiflora ;however, by the terms of number of reproductive strains and shoots, the latter was 1.71 times and 1.11 times than former respectively. There was positive linear relationship between the numbers of clones of reproductive strain and cluster size, even between the numbers of nutrient strains and cluster size, so do the biomass of clone of reproductive strains, nutrient strains and total biomass, and their significance was P 〈 0. 01.
关键词
小花碱茅
数量性状
生物量
Puccinellia tenuiflora
quantitative properities
biomass
