Document Type : Research Paper
Authors
1
Department of Plant Production and Genetics, Faculty of Agriculture, Malayer University, Malayer, Iran
2
Department of Agronomy and Plant Breeding, Faculty of Agriculture, Malayer University, malayer, Iran
3
Plant Production and Genetics department, Faculty of Agriculture Malayer University Malayer Iran
Abstract
Background & Objective: Salt stress is now an increasingly serious environmental issue that affects the physiological, morphological, biochemical function of many plants.
Methods & Materials: In this research, the interaction effect of Serendipita indica, NaCl (0, 50 and 200 mM) and trehalose (0, 25 and 50 mM) on germination of tomato, also the interaction effect of Serendipita indica, NaCl (0, 50 and 200 mM) and trehalose (0, 25 and 50 mM) in pot were investigated on morphophysiological traits of tomato according to a factorial experiment based on completely randomize design (CRD) with 3 replication in two independent experiments.
Results: In germination experiment the results showed that salinity stress signifcantly decreased germination percentage, radical length, hypocotyl length, seedling dry weight, seedling fresh weight and K with increasing Na and phenol content. Meanwhile, S. indica and Tre treatments promoted germination parameter. The results indicate that the negative effects of NaCl on tomato plants were alleviated after S. indica inoculation and trehalose. In pot experiment, the results indicated that salinity stress signifcantly decreased biomass, relative water content, photosynthetic pigments and K with increasing catalase, electrolyte leakage, hydrogen peroxide, Na and proline content. Meanwhile, S. indica and Tre treatments promoted biomass and enhanced proline, K, catalase and photosynthetic pigments content under salt stress.
Conclusion:This study is novel in showing the salt adaptation of tomato plants by combination use of S. indica and Tre, which can be a promising strategy for improving salt tolerance.
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