生态学杂志2025，Vol.44Issue(3)：720-727,8.DOI:10.13292/j.1000-4890.202503.052
雌雄桑树幼苗对不同性别邻株的响应
Response of female and male mulberry seedlings to neighbors with different genders
摘要
Abstract
Recent studies have shown that plant responses to neighboring plants are correlated with the"identity"of neighbors.Dioecious plants play crucial role in maintaining ecosystem functions.Few studies have focused on how dioecious plants respond to neighbors with different genders.In this study,we compared the direction and intensity of neighbor effects on biomass and root morphology of female/male seedlings grown with sex-associated neighbors in the important economic and ecological tree species,Morus alba.The results showed that:(1)stem biomass and total biomass of both male and female mulberry trees were significantly reduced under intra-sex neighbors,com-pared with the condition without neighbors.Under inter-sex neighbors,root biomass of females was significantly in-creased,and stem biomass and total biomass of males were significantly reduced.(2)In terms of neighbor effects,intra-sex neighbors had significant negative effects on root biomass,leaf biomass,leaf weight ratio,total root vol-ume and total root surface area of female plants,and showed significant positive effects on male plants.Inter-sex neighbors had significant negative effects on stem biomass,total biomass,and stem weight ratio of both male and female mulberry trees,and had significant positive effects on root weight ratio,root shoot ratio and total root vol-ume.(3)Total root surface area and total root volume of female plants were significantly smaller than those of male plants under intra-sex neighboring plants,while those of female plants were significantly larger than those of male plants under inter-sex co-planting.These results demonstrated that the response of mulberry to neighboring plants was related to the sex of neighboring plants,and this response was sex-specific.By exploring plant neighbor effect from the perspective of plant sex,our results may provide new research content investigating plant-plant interactions and offer novel insights for the establishment of high-yielding mulberry plantations.关键词
桑树/邻体效应/生长/雌雄异株Key words
mulberry/neighbor effect/growth/dioecious plant引用本文复制引用
黄俊翰,刘一伯,王雅蔓,黄平平,董廷发..雌雄桑树幼苗对不同性别邻株的响应[J].生态学杂志,2025,44(3):720-727,8.基金项目
国家自然科学基金项目(32171750)资助. （32171750）
