陕西林业科技2023，Vol.51Issue(5)：1-5,5.DOI:10.3969/j.issn.1001-2117.2023.05.001
接种丛枝菌根菌对灰木莲幼苗生长抗旱能力的影响
Effect of Mycorrhizal Inoculation on Drought Resistance of Magnoliaceae glanca Seedlings
摘要
Abstract
Magnoliaceae glance,an endangered plant endemic to China,has poor drought resistance.In order to achieve efficient cultivation of M.glanca,it is of great significance to explore its applica-tion potential in improving the drought resistance through mycorrhizal inoculation technology.In this experiment,the seedlings of M.glanca were used as experimental materials,and the differences in growth and physiology between mycorrhizal seedlings and non-mycorrhizal seedlings under PEG sim-ulated drought stress were analyzed.The results showed that the survival rate,biomass,leaf water deficit,photosynthetic parameters and antioxidant activity of mycorrhizal and non-mycorrhizal seed-lings were significantly different under 4％～12％ PEG 6000 treatment.Among them,any concentra-tion of PEG treatment compared with non-mycorrhizal seedlings,has the survival rate and biomass increment of mycorrhizal seedlings increased,the relative water deficit rate of leaves decreased,and the net photosynthetic rate(Pn),water use efficiency(WUE),intercellular carbon dioxide concentra-tion(Ci),chlorophyll content and malondialdehyde(M4DA)content of leaves decreased,and the tran-spiration rate(Tr),stomatal conductance(Gs)and peroxidase(POD),catalase(CAT)activity in-creased.The research indicated that the drought resistance of M.glanca seedlings was significantly improved by mycorrhizal inoculation.It is recommended that the scientific cultivation of M.glanca can be realized by mycorrhizal seedling cultivation in the future.关键词
灰木莲/抗旱性/丛枝菌根/高效栽培Key words
Magnoliaceae glance/drought resistance/arbuscular mycorrhizal/efficient cultivation分类
农业科技引用本文复制引用
曾键鸿,邓海勇,张志光..接种丛枝菌根菌对灰木莲幼苗生长抗旱能力的影响[J].陕西林业科技,2023,51(5):1-5,5.基金项目
广东省重点领域研发计划项目(2020B020215012). （2020B020215012）
