Effect of seed priming and foliar application of selenium on physiological traits and Stink bug injury percentage of rainfed wheat Azar 2 cultivar
Subject Areas : Journal of Plant Ecophysiology
Nourali
Sajedi
1
(Scientific member of Islamic Azad university)
Keywords: Grain yield, Electrolyte leakage, Wheat, Sodium selenite, Chlorophyll content,
Abstract :
In order to study the effect of seed priming by selenium and foliar application on physiological charactristics and Stink bug injury percentage of Rainfed wheat, a one year field experiment was carried based on complete randomized block design with three replicates at the Research Station of Islamic Azad University, Arak Branch, in Iran during 2014. Twelve treatments were including control, seed priming with distilled water, priming with rates of 1, 2 and 3 mg/L Se alone; and along with spray of distilled water and Se (Sodum Selenite). The results showed that seed priming along with foliar application of distilled water, seed priming with distilled water plus foliar application of Se, seed priming with 3 mg/L Se along with foliar application of Se, increased the relative water content compared with the control. Seed priming with distilled water, foliar application of Se and seed priming with 2 mg/L Se, plus spray of Se decreased electrolyte leakage compared to the control. Foliar application of Se alone and seed priming with 1 mg/L Se plus spray of Se increased Chl a by 31.4 and 24.2 % compared to the control, respectively. Seed priming plus spray of Se decreased the Stink bug injury, significantly. The maximum seed yield was recorded for seed priming with 2 mg/L Se plus foliar application of Se. The results suggest that seed priming with distilled water and espicial Se at low amounts along with spray of Se can decrease electrolyte leakage and Stink bug injury percentage under rainfed condition.
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