【摘要】 无性系植物可通过自身的表型可塑性调节适应不同的环境资源供应水平。在环境条件相同的情况下,以典型的无性系植物中国沙棘为对象,采用跟踪挖掘和样方相结合的方法,调查分析中国沙棘无性系生长差异。结果表明:中国沙棘无性系之间的生长特征和形态特征均存在明显差异,具体表现在子株数量和子株大小、子株数量散布格局和子株大小散布格局,以及无性系子株群结构等方面。此外,子株地径与母株地径之间存在显著的正相关关系。更多还原

【Abstract】 Clonal plants adapt themselves to the different level of resource availability by phenotypic plasticity.Based on the measurement of all individuals in a sample plots and following excavation of clones,the differences of clonal growth of Hippophae rhamnoides L.subsp sinensis clone population under the same environment condition were analyzed.The results showed that the characteristics of clonal growth and clonal morphology have significant difference.The characteristics are listed as the number and the size of daughter ramet,the distribution patter of daughter ramet number and daughter ramet size referring to distance from its mother ramet,and the height class structure of daughter ramet group(daughter ramets within a clone) among clones.And there was a positive correlation between the basal diameter of mother ramet and daughter ramet.更多还原