Use of the Piriformosupora indica on chlorophyll content and antioxidant activity in the medicinal plant Dracocephalum kotschyi under salinity stress

آزرمی, رسول and آدم, آرزو and پاداش, اکبر Use of the Piriformosupora indica on chlorophyll content and antioxidant activity in the medicinal plant Dracocephalum kotschyi under salinity stress. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Background and objectives: In Iran, salinity extension of soils along with high levels of salinity of water limit quality of product and productivity. Since, in the recent years global demand for the use of medicinal herbs such as peppermint is increasing, nowadays the use of microorganisms that have a symbiotic relationship with plants is a new strategy to improve the environmental performance of the plants in adverse conditions such as saline water and soil. In this study, therfore, the effect of symbiotic mycorrhiza like fungi, Piriformospora indica on growth improvement of peppermint was designed and implemented under salt condition. The study was conducted based on randomized complete block design with four replications at research greenhouse University of university of mohaghegh ardabili 2018. Treatments included two levels of coexistence (control and inoculated with the fungus) and four salinity levels (0, 75, 150 and 300 mmol NaCl). The parameters were studied such as root colonization, chlorophyll content and radical scavenging DPPH were measured. Results showed that with increasing salinity the root colonization and chlorophyll content decreased. The symbiotic fungi improved plant chlorophyll content and radical scavenging DPPH. In addition, the use of P. indica, by developed the root system by fungal hyphae resulted in alleviating the effect of salinity in the Dracocephalum kotschyi. Therefore, it seems that p. indica could induce salt tolerance and roughly improve growth parameters of Dracocephalum kotschyi plants.

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