Study the efficiency of rhizobium strains in water stress condition in common bean.
2013
Hemmati . Akbar | Galebi.Saeed | Hoseini,H.S.M | Rahmani.Asadi | Mirtalebi .S.H | Amini.Z.
Because of high water requirement and N2-fixation in bean plant, if there is unsuitable condition in growth period, may be to result in more damage than other plant in drought seasons. To investigate the efficiency of rhizobium strains in water stress, this study performed base on randomized complete block design in split plot experiment with 12 treatments in 3 replication. The treatments were irrigation base of 30,60 and 80 % of available water of soil in mean plot and 54,58,160 and 177 rhizobium strains seed inoculated in sub plot. Water irrigation content, water use efficiency, plant nitrogen, yield and yield components were determined. The results in 2 years showed that, the irrigation and rhizobium treatments have significant (at 5 %) effects on yield and yield components. In water stress condition, the resistance of bean plant will be increasing 20-40 % by rhizobium inoculated without low yield of bean. The 177 rhizobium strain and irrigation base of 60 % available water have most of irrigation water use efficiency. Key words: Bean, Rhizobia, Water stress, Yield. 1-Scientific member of research center for agriculture and natural resources of Fars province. Iran.
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