Effect of Soil application and Zinc Solubility on grain filling, grain yield and some biochemical traits of wheat under Salinity Stress

In order study the effect of soil application and zinc solubility on chlorophyll content and grain yield of wheat in salinity conditions, an experiment was conducted in 2018 in a factorial based on a completely randomized block design with three replications in a research greenhouse of Faculty of Agriculture and Natural Resources University of Ardebil. The investigated factors included soil salinity in four levels (control and salinity levels of 30, 60 and 90 mM in soil), sodium chloride salt and the second factor including zinc sulfate and zinc oxide (control) , Soil fertilization, zinc sulfate, zinc dispersion and soil application and zinc solubility). The results showed that soil application and zinc spray application and lack of soil salinity increased grain yield, seed weight, seed filling speed, period length and effective grain filling period (respectively, 47.56, 72.45, 20.20 And 29.22 %), compared to non-zinc conditions in soil at 90 m molar. Zinc application also reduced the content of hydrogen peroxide and malondialdehyde in soil salinity conditions. Keywords: Grain filling speed, hydrogen peroxide, zinc micronutrient, malondialdehyde