西南林业大学学报2018，Vol.38Issue(1)：34-40,7.DOI:10.11929/j.issn.2095-1914.2018.01.006
干旱胁迫对桃叶杜鹃菌根苗生长的影响
Effects of Drought Stress on the Growth of Rhododendron annae Mycorrhizal Seedlings
摘要
Abstract
Four water stress treatments and 3 inoculation treatments were set up to determine the root morphol-ogy,seedling height,biomass,root/shoot ratio of mycorrhizal seedlings. The effects of different mycorrhizal fungi on the growth of Rhododendron amurensis under drought stress were analyzed. Result showed that under normal wa-ter conditions,inoculation of ERM significantly increased seedling height,leaf area,and the biomass accumulation of aerial parts and underground parts of seedlings,and promoted the growth of R.annae. Under mild water stress, length and surface area of root and seedling height were higher than those of other treatments. However, with the aggravation of stress,the seedling height and leaf area of CK decreased gradually. The seedling height of mycorrhi-zal seedlings increased with mild stress,and then decreased.The decrease of mycorrhizal seedling leaf area was less than that of CK. Inoculation of different strains of promoting growth effect was also different. Inoculation TY35 had better mitigation effects than inoculation TY29 on R.annae seedlings under drought stress.关键词
桃叶杜鹃/菌根/接种/干旱胁迫/生长Key words
Rhododendron annae/mycorrhiza/inoculation/drought stress/growth分类
农业科技引用本文复制引用
熊贤荣,欧静,龙海燕,欧阳嘉晖,熊丹..干旱胁迫对桃叶杜鹃菌根苗生长的影响[J].西南林业大学学报,2018,38(1):34-40,7.基金项目
国家自然科学基金项目(31560223、31460136)资助 （31560223、31460136）
贵州省科技计划项目(黔科合支撑[2016]2522号)资助 （黔科合支撑[2016]2522号）
贵州大学研究生创新基金(研农2017010)资助. （研农2017010）
