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Investigation of the effect of salicylic acid foliar application on reducing the effect of salinity stress in different wheat cultivars
Mohammad Yaqoub Sultani
Background: Wheat, as a strategic product, has a major contribution to the country's agricultural products, while a significant part of this product is cultivated in saline lands. Salinity in dry and semi-layered areas, such as Iran, can produce crops. To deal with this problem, the study of genetic variation in wheat and finding tolerant genotypes of salinity stress seems very necessary. One of the most important phytochemones, which plays an important role in resistance to bio and non-biological stresses such as salinity, is salicylic acid. Salicylic acid plays a role in regulating the physiological and biochemical processes of plants that are associated with salinity and cause changes in the expression of effective genes in these physiological and biochemical processes.
Aim: The effect of salicylic acid solution in reducing the effect of salinity stress in wheat cultivars. Methodology: The present study is conducted in the greenhouse of the Faculty of Agriculture and Natural Resources in the Gulf University on the outskirts of Borazjan in 2019. This experiment is a factorial on 4 wheat genotypes in pots with two levels of salinity stress (no stress (normal), 80%) and five levels of salicylic acid (1,2, 0.5, 0.25, 0) in the form The baseline layout of random blocks is done with three replications. Morphological traits such as plant height, flag leaf length, flag leaf width, peduncle length, leaf length, spike length, spike length, number of fertile spikes in spike, number of seeds per spike, spike weight, grain weight in spike, weight of thousand Grain and phytochemical traits including chlorophyll content and proline levels are measured.
Conclusions: The results of the studied traits showed that the effects of cultivar, salinity and silicylic acid (SA), as well as their interactions and triple effe