Effect of mycorrhizal fungus on some growth and physiological indeices in ‘Perllete’ grapevine under high temperature stress

Document Type : Full Paper


1 Ph.D. Student, Faculty of Agriculture, Shiraz University, Shiraz, Iran

2 Professor, Faculty of Agriculture, Shiraz University, Shiraz, Iran


High temperature is the most important limiting factor for plant growth in many regions. This problem is very serious because of a heading global warming phenomenon. So study of high temperature effects on different cultivars and species and finding out solution to improve plant tolerance is necessary. In this research, effect of mycorrhizalarboscular fungus on some physiological traits of grapevine (Perllete cultivar ) subjected to three temperature (25ºC, 40ºC, 45ºC) was evaluated. The experiment was conducted as a factorial experiment based on completely randomized desing with four replications. The results indicated that photosystem II photochemical efficiency and chlorophyll index were reduced in vines subjected to 45ºC without mycorrhizal fungus inoculation. Whereas this parameters were not significantly affected in vines inoculated by this fungus. In general, in ‘Perllete’ grapevine, inoculation by mycorrhizal had significant effect on tolerance improvrment to high temperature stress.


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