安徽大学学报（自然科学版）2024，Vol.48Issue(6)：86-93,8.DOI:10.3969/j.issn.1000-2162.2024.06.012
不同水分条件下喀斯特生境植物相互作用及其诱导的形态可塑性
Plant-plant interactions and its induced morphological plasticity in karst species under different water conditions
摘要
Abstract
In this study,Buddleja lindleyana and Bidens pilosa were used as the research objects.Under drought and wet conditions,the plants were subjected to three biological environment treatments:single growth,intraspecific interaction and interspecific interaction.A series of morphological and biomass characteristics were measured to explore the effect of water on the plasticity induced by plant-plant interaction and whether the effects of intraspecific and interspecific interactions were different.The results showed that the intraspecific and interspecific interactions had a promoting effect on Buddleja lindleyana under both water conditions(the promoting effect of the same neighbor under drought conditions was weakened),but they were not conducive to the growth of Bidens pilosa(the interspecific competition was enhanced under wet conditions,and the intraspecific competition was weakened).This meant that the interspecific interaction not only depended on the response ability of the species itself,but also was closely related to the relative strength of the response ability of the neighbor species:the interaction was moderate for Buddleja lindleyana,so it was more likely to produce a promoting effect;but for Bidens pilosa the intensity was too high,more likely to produce a competitive effect.Under drought conditions,the response of the two species to adjacent plants was weak.The contrasting growth strategies(increasing underground and aboveground growth,respectively)of Buddleja lindleyana and Bidens pilosa under wet conditions were conducive to their complementarity in interspecific interactions.The response of Bidens pilosa to interspecific interactions was more likely to change with the adjustment of the growth strategy of Buddleja lindleyana.关键词
表型可塑性/地上生长/地下生长/生物量分配/种内相互作用/种间相互作用Key words
phenotypic plasticity/aboveground growth/underground growth/biomass allocation/intraspecific interaction/interspecific interaction分类
农业科技引用本文复制引用
侯夏丽,王姝,陈家兴,尹任娅,陈林丽,黄元浒,杨庆祝..不同水分条件下喀斯特生境植物相互作用及其诱导的形态可塑性[J].安徽大学学报（自然科学版）,2024,48(6):86-93,8.基金项目
国家自然科学基金资助项目(32171511) （32171511）
