刺槐无性系生物量及其分配差异比较  

Differences in the Biomass and Biomass Allocation of Robinia pseudoacacia Clones

作　　者：高云晓 曹志 史峻峰[3] 周广波 郭朝帅 曹帮华[1] GAO Yunxiao;CAO Zhi;SHI Junfeng;ZHOU Guangbo;GUO Zhaoshuai;CAO Banghua(Shandong Agricultural University,Shandong Taian 271018;Forestry Technology Promotion Station of Lanshan district,Shandong Linyi 276000;Second nursery of Dongping County,Shandong Taian 271500;Maxi Forest Center of Shenxian,Shandong Liaocheng 252415)

机构地区：[1]山东农业大学林学院,山东泰安271018 [2]临沂市兰山区林业技术推广站,山东临沂276000 [3]东平县第二苗圃,山东东平271500 [4]莘县马西林场,山东莘县252415

出　　处：《山东林业科技》2019年第1期5-8,共4页Journal of Shandong Forestry Science and Technology

基　　金：国家自然基金(31770668);国家重点研发计划(2017YFD0601203);山东省重大科技创新工程(2017CXGC0316);泉林黄腐酸肥料工程实验室开放研发基金(QL2016-36);山东省科技发展计划项目(2015GNC111026)

摘　　要：刺槐是我国重要的造林树种之一,尤其是在环境恶劣地区,发挥着重要的生态功能。本文利用从全国各地收集的刺槐无性系繁育的1年生插根苗,研究了幼苗的生物量、生物量分配、组织相对含水量。研究结果表明,无性系之间在生物量和生物量分配上有着极显著差异,但在根、枝和茎相对含水量上差异不显著。利用聚类分析,将16个无性系分为三类:第一类生物量低、无分枝,第二类生物量低、较多分枝,第三类为生物量大、稍有分枝。无性系之间,C041、W021有着最强的生长能力,W005和W027有着最高的根冠比。无性系在生物量及其分配上的差异为进一步的选育提供了依据。Robinia pseudoacacia is one of the important forestation species in China,especially in harsh environment areas,which plays an important ecological function.In this paper,the biomass,biomass allocation and relative water content of seedlings of 16 one-year old R.pseudoacacia clones collected from all over the country were studied.The results showed that there were significant differences in biomass and biomass allocation among clones,but there were no significant differences in relative water content of roots,branches and stems.By cluster analysis,these clones were divided into three categories:the first group possessed low biomass and no branching;the second group possessed low biomass and more branching;and the third group possessed large biomass and slightly branched.Among these clones,C041 and W021 had the strongest growth ability,while W005 and W027 had the highest root shoot ratio.The differences in biomass and biomass distribution among clones provide a basis for further breeding researches of R.pseudoacacia clones.

关 键 词：刺槐 无性系 生物量分配 相对含水量 聚类分析 

分 类 号：S792.26[农业科学—林木遗传育种]