Effect of Bio-fertilizer and Arbuscular Mycorrhizal Fungi on Yield, Growth Characteristics and Quality of Green Bean (Phaseolous vulgaris L.)

Document Type : Research Paper

Authors

Abstract

Phosphate solubilizing bacteria with nitrogen-fixing bacteria and also arbuscular mycorrhizal fungi which are provided in the form of bio-fertilizers have an important role in the nutrient supply of plants. In order to evaluate the effect of bio-fertilizer, barvar 2 (B), Nitrokara (N) and arbuscular mycorrhizal fungi and their combination on yield, growth characteristics and quality of green bean cv. Sunray a field experiment was carried out in a randomized complete block design with 6 treatments and three replications in 2012. The results showed that the bean pod yield, stem length, number of lateral shoots, number of leaves, dry weight and dry matter content, pod length, pod  diameter, number of seeds per pod, chlorophyll index, chlorophyll b, total chlorophyll, vitamin C and TSS were  significantly different. Among treatments plants inoculated with bio-fertilizers Nitrokara produced the highest pod yield (29006.67 kg/h), number of lateral branches, dry matter content, leaf number, dry weight, TSS and pod length. The results also showed that using of arbuscular mycorrhiza fungi in combination with bio-fertilizer is more effective than individual application of them.

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