盐分对克隆植物蕨麻原变种生长的影响

Effect of Salt on Growth of Stoloniferous Herb Potentilla anserine L.var.anserina

研究了匍匐茎克隆草本植物蕨麻原变种对土壤不同盐分处理的表型差异,结果表明,随着盐分浓度的增加,实验植物的死亡率逐渐上升,与生长相关的性状指标显著减小,并存在显著的株间差异;而根冠比呈明显上升的趋势,说明蕨麻地下部分(即块根)比地上部分对盐分的耐受能力强,从而为蕨麻在高寒高海拔高盐分地区的植被恢复提供了一定的理论基础,同时利用SAS数据处理系统对相关指标建立了数学模型。

The architecture plasticity of stoloniferous clonal herb for different soil salinity disposal was studied. The result showed that with the increase of salt concentration, the death rate rise gradually, that characteristic index correlative with experiment plant growth minished obviously, and existed distinct individual difference; but root and coronal rate showed evidence ascend trend, it explained adequately the overground part of Juema（ie. root tuber） was more tolerance capability than the underground, which offered definite theory for vegetation resume of high cold, high altitude and high salinity area of Juema. Simultaneously, using SAS data processing system mathematics model for correlative indexes was established.