Evaluation of the effect of ascorbic acid application and coexistence of mycorrhiza fungi and Azospirillium bacteria on basil under the influence of different irrigation regimes

Due to increasing population and increasing demand for food, chemical fertilizers as a tool for the desire for maximum production per unit area, have been used indiscriminately, which has caused irreparable damage to the body of the environment. On the other hand, today is the global approach to organic farming. One of the ways to increase plant resistance to environmental stress is to increase the level of substrates of antioxidant enzymes and intracellular antioxidants such as ascorbic acid. This experiment is a split factorial In the form of a randomized complete block design with three replications and in two cropping years 2018-2019 in Ghamsar village located in Shahreri city. In this experiment, drought stress as the main factor in three levels: 40-170-100 mm evaporation from the evaporation pan of class A and biofertilizer including growth-promoting bacteria (azospirillium) and mycorrhiza fungus in four levels including: a) no consumption b ) Seed of growth-promoting bacterium (Azospirillium) c) Consumption of mycorrhizal fungus in the form of seed d) Concomitant use of growth-promoting bacterium Azospirillium with mycorrhizal fungus in the form of seed and ascorbic acid in two levels of foliar application, including a) no ascorbic acid and B) Application of ascorbic acid (two days after irrigation treatment) was considered as a factorial as a sub-factor.