The Responses of Chinese Fir Seedling Inoculated with the Composite Mycorrhizal fungi under P Stress
The mechanism of resistance enhanced by composite endomycorrhizal and ectomycorrhizal fertilizers under stresses had been studied.The results showed that under P stress,the seedling height,ground diameter,aboveground and underground dry weight,relative water content,WUE,chlorophyll content,soluble sugar content of P0+F treatment group were higher than that of P0+NF treatment group,to which were respectively higher 64.10%、69.40%、31.83%、73.17%、35.68%、133.33%、89.55%、17.98%.The RWD,Pro and MDA content of the inoculation of composite mycorrhizal fungi treatment under the stresses were all significantly decreased.In the aspect of antioxidant enzymes activity,SOD,CAT and POD activity of P0+F treatment group increased than that of P0+NF treatment group to 26.04%、50.50%、46.56%.The enzyme activity of soil phosphatase,catalase,polyphenol oxidase,urease,protease of P0+F were respectively increased than that of P0+NF to 75.00%、74.68%、34.62%、95.24%、84.62%.Because of the series responses of Chinese fir seedling inoculated with the composite mycorrhizal fungi,which were benefit for promoting growth,improving water use efficiency,improving the physicochemical character of soil,the resistance of plant had been improved to stress.
Composite mycorrhizal fungi Phosphorus stress Osmotic regulation substances Antioxidase activity Soil enzyme activity
Li Lin Wang Huimin He Yuanhao LI Hongjun Wang Shengjie Zhou Guo-ying
Central South University of Forestry & Technology,Changsha 410004,Hunan,China
国内会议
福州
英文
107-112
2013-09-01（万方平台首次上网日期，不代表论文的发表时间）