To evaluate the effects of potassium on yield, yield components and some physiological traits of chickpea in rain-fed conditions, an experiment was conducted as a factorial based on randomized complete block design with three replications in Research Farm of Islamic Aza
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To evaluate the effects of potassium on yield, yield components and some physiological traits of chickpea in rain-fed conditions, an experiment was conducted as a factorial based on randomized complete block design with three replications in Research Farm of Islamic Azad University Ardabil Branch in 2011. Factors included four potassium levels as 0, 30, 60 and 90 kgha-1 and Zinc on three levels of 0, 0.3 and 0.6%. The traits such as yield, biological yield, harvest index, number of seeds per plant, number of pods per plant, a, b and total chlorophyll, leaf relative water content, stability of cell membrane and osmotic potential were measured. The highest biological yield, harvest index, number of seeds per plant, chlorophyll a, b and total chlorophyll and leaf relative water content, cell membrane stability and lowest osmotic potential belonged to the treatment of 90 kg ha-1 potassium and 0.6% of zinc treatment. Based on the results, it seems that application of the potassium and zinc improves stress tolerance indices and reduce stress injuries and grain yield, consequently.
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