新疆农业科学2018，Vol.55Issue(10)：1803-1809,7.DOI:10.6048/j.issn.1001-4330.2018.10.005
EM菌对NaCl胁迫下核桃幼苗生长、光合特性及抗氧化系统的影响
Effects of EM Fungi on the Growth, Photosynthetic Characteristics and Antioxidant System of Walnut Seedlings under NaCl Stress
摘要
Abstract
[Objective] This project aims to explore the effects of EM fungi on the growth, photosynthetic characters and antioxidant system of walnut seedlings under NaCl stress.[Method]Effects of EM fungi on salt tolerance of walnut seedlings were studied in pot culture under different NaCl concentrations (0, 0.4％, 0.8％ and 1.2％).[Result]With the increase of stress concentration, the biomass, photosynthetic ability and antioxidant capacity of walnut seedlings decreased significantly in various treatments. Under different NaCl stress, inoculation of EM enhanced biomass and photosynthetic capacity of walnut seedlings. At the same time, superoxide dismutase (SOD) and peroxidase (POD) activities of seedlings inoculated with EM were significantly higher than those in non-inoculated plants, and the relative electric conductivity and malondialdehyde (MDA) content were significantly lower than those in non-inoculated plants. In addition, variation in relative electric conductivity, MAD content, SOD and POD enzyme activity of non-inoculated seedlings were obviously greater than those of inoculated seedlings, after stress.[Conclusion]The walnut seedlings are sensitive to salt stress. EM fungi can improve salt tolerance of seedlings by increasing their biomass, photosynthetic capacity and antioxidant capacity.关键词
核桃幼苗/EM菌/盐胁迫/光合能力/抗氧化能力Key words
walnut seedling/EM fungi/NaCl stress/photosynthetic capacity/antioxidant capacity引用本文复制引用
艾尔买克·才卡斯木,钟海霞,张雯,张付春..EM菌对NaCl胁迫下核桃幼苗生长、光合特性及抗氧化系统的影响[J].新疆农业科学,2018,55(10):1803-1809,7.基金项目
自治区公益性科研所项目 (KYGY2016129) （KYGY2016129）
