- Department of Agroecology, Islamic Azad University, Varamin-Pishva Branch, Varamin-Pishva, Iran
In order to investigate on the effect of foliar application of microelements on phenological and physiological characteristics of Mung bean under drought stress, factorial experiment based on completely randomized design with three replications was conducted in the Agriculture Faculty greenhouse of Islamic Azad University of Varamin-Pishva branch in2013-2014.The first factor was drought stress at four levels include a control (without stress),applying of drought stress at flowering stage,pod and dough stages and the second factor was foliar application of microelements at three levels include a control (spraying of distilled water),3 and 6 pm.The results showed that the drought stress decreases plant height, leaf area index, thousand grain weight, chlorophyll a, chlorophyll b and total chlorophyll and increases grain protein percentage and pro line accumulation.
The effect of drought stress at flowering stage was higher than other stages. Also, the foliar application of microelements was increased the plant height, leaf area index, thousand grain weight, chlorophyll a, chlorophyll b and total chlorophyll, grain protein percentage and pro line accumulation in with and without stress conditions.Therefore, the most effective concentration of microelements was 6 pm.
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