Effects of arbuscular mycorrhizal fungi and Rhizobium on ion content and root characteristics of green bean and maize under intercropping

Zahra Marzban, Elham Faryabi, Shahram Torabian


In order to evaluate arbuscular mycorrhizal fungi and rhizobium bacteria effects on leaf nitrogen (N) and phosphorus (P) concentration and root characteristics of green bean and maize under intercropping, experiment was carried out in the research field of College of Agriculture, Payame Noor University of Azna, Lorestan, Iran. In experiment, sandy loam soil with pH 7.3 and EC 0.49 dS m-1 was used.The treatments comprised three cropping systems (sole cropping of green bean and maize, and intercropping), and four inoculations (control, arbuscular mycorrhizal fungi, rhizobium and mix of arbuscular mycorrhizal fungi and rhizobium). The results showed that inoculation with rhizobium improved length, diameter, volume and area of green bean root.The highest of green bean N, P concentration and root dry mass were observed in sole culture of green bean inoculated with arbuscular mycorrhizal fungi. Moreover, root length, diameter, volume and area of maize increased by arbuscular mycorrhizal fungi, and total concentration of N and P enhanced with use of rhizobium in sole cropping. Although the usage of Rhizobium and AMF can be affected on increasing the root growth and nutrient uptake of crops, application of bacterium and fungi combination at the same time would not be suitable. Overall, intercropping of maize with green bean caused to increase of leaf N and P concentrations and root growth of maize.


inoculation; AMfungi; rhizobacteria; intercropping; root length; root area; root dry mass; phosphorus; nitrogen

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DOI: http://dx.doi.org/10.14720/aas.2017.109.1.08


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