Effect of Piriformospora indica on reducing the negative effects of salinity stress in lemon balm (Melissa officinalis)
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Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:

Lemon balm (Melissa officinalis), which belongs to the Lamiaceae family is one of the most important medicinal plants which is characterized by the smell of lemon. In order to study the symbiotic effects of Piriformospora indica (an endophytic fungus) on morpho-physiologic characteristics of lemon balm under salt stress, an experiment was conducted in the research greenhouse of Malayer University in 2017 as a factorial based on the completely randomized design (CRD) with three replications. Experimental treatments were included various forms of P. indica (mycelium, spores application once, spores applications twice, and control) as the first factor and different levels of salinity (0 and 4 dS/m) as the second factor. Based on the results, the interaction of experimental treatments on plant height, root length, leaf dry weight, chlorophyll a, relative water content, membrane stability, and soluble protein content was significant. The highest amount of plant height, root length, and leaf dry weight was related to the treatment of spores applications twice without salinity stress. The highest amount of chlorophyll a and membrane stability observed in the mycelium treatment under control conditions. In general, according to the results of this experiment, it seems that the use of this fungus is recommendable to moderate the negative effects of salinity stress, and among the various treatments, spores applications twice has more ability to reduce the negative effects of salinity stress.

Language:
Persian
Published:
Journal of Crop Science Research in Arid Regions, Volume:2 Issue: 2, 2021
Pages:
219 to 229
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