European Journal of Experimental Biology Open Access

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The study effects of some biological agents on Chickpea (Cicer arietinum L.) under semi-dry conditions in Kermanshah

Behnoush Rasaei, Mohammad-Eghbal Ghobadi, Mokhtar Ghobadi, Abdollah Nadjaphy and Ali Rasaei

Among the environmental stresses, drought stress is one of the important factors that influence on the yield, yield components and physiological characteristic of the crops under rain-fed conditions. As regards, in the Iran the most cropping area of the chickpea is rain-fed, so, using of the biological agents with once performance supplemental irrigation during growth can be effective in improving the nutritional status of the chickpea. So that, a field experiment was conducted as split-factorial based on Randomized Complete Block Design with three replications, at the Experimental Farm at Campus of Agriculture and Natural Resources of Razi University, in 2010-2011. The main plots consisted of the supplemental irrigation at time of the flowering and non- irrigation and sub-plots were including use and non-use of the Mycorrhiza, Rhizobium and humic acid as factorial. Traits including relative water content (RWC), biological yield, grain yield, number of pods per plant, number of grains per plant, number of grains per pod, 100-grains weight and harvest index. The results showed that the main effect of the supplemental irrigation on yield, yield components (except 100-grains weight), RWC, N and P content were significant. Also, the effect of the humic acid was significant on RWC, biological yield, grain yield, harvest index and P content but the Rhizobium wasn’t effective on the traits. The Mycorrhiza only was significant for grain yield and P content. Also the interaction effects between supplemental irrigation and humic acid were significant for biological yield and grain yield and P content. Overall, application of the supplemental irrigation with use of biological and symbiosis agents was effective in improving physiological traits