University of Khartoum

Response of Two Cultivars of Snap Beans (Phaseolus Vulgaris L.) to Rhizobium Strains Inoculation

Response of Two Cultivars of Snap Beans (Phaseolus Vulgaris L.) to Rhizobium Strains Inoculation

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Title: Response of Two Cultivars of Snap Beans (Phaseolus Vulgaris L.) to Rhizobium Strains Inoculation
Author: Ibrahim,Hanan Adam Mohammed
Abstract: The response of two snap bean (Phaseolus vulgaris) cultivars to three Rhizobium inoculation on their yield and yield components were investigated at Shambat demonstration farm of the Faculty of Agriculture during the season 2006. The Rhizobium inoculation treatments used were three strains; ENRRI-1, USDA-2674 and USDA-2669 with two controls; without inoculum and without incoculum plus 2N (as inhibitor for nodules formation). The two cultivars of snap bean were Bronko and Narina. A split plot design, with three replications was used. Data were collected on nodulation characters, growth parameters, yield characters and both soil and plant chemical components. The plants which were treated with nitrogen as inhibitor for nodules formation, exhibited significant increases in vegetative growth during the different growth and showed increases in pods yield. The introduced strains USDA-2674 and USDA-2669 under the experimental conditions, gave no response for nitrogen fixation. On the other hand, the local strain ENRRI-1showed high nitrogen fixation, that was illustrated as high nitrogen level in the vegetative growth compared with control (without inoculum). The inoculation treatments showed significant increase in nodules number, fresh, dry weight and vegetative growth. The result showed that the local race ENRRI-1 showed high and efficient response under high temperature, saline soil conditions and late sowing date. Nodules formation in the control treatment provided evidence for existence of snap bean root nodules bacteria in shambat soil. Cultivar Bronco exceeded the cultivar Narina in most of the characters. It showed more response to nitrogen compared with Narina. There were significant interaction between cultivars =620; treatments for most parameters, the most prominent of them were obtained from Bronco =620; nitrogen treatments interaction which was applied as inhibitor, followed by the inoculation by Bronco =620; ENRRI-2 interaction. Nitrogen, the inoculum ENRRI-2 treatment exhibited high value than the other treatments when applied on cultivar Narina.
Description: 156 Pages
URI: http://khartoumspace.uofk.edu/handle/123456789/12077
Date: 2015-06-14


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