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- Title
Environmental evaluation of auxin priming and plant growth promoting rhizobacteria on yield and yield components of wheat under drought stress.
- Authors
Bagheri, Najmeh; Alizadeh, Omid; Sharafzadeh, Shahram; Aref, Farshid; Ordookhani, Kourosh
- Abstract
This study was performed to the environmental evaluation of auxin and plant growth promoting rhizobacteria priming on yield and yield components of wheat under drought stress. Experiment was conducted as a Split plot in RCBD design with 3 replications. Main factor included drought stress (irrigation on base of 25, 50 and 75%FC) and sub plots were inoculation at 4 levels (control, azotobacter, pseudomonas and a combination of two bacteria), also sub plots were auxin priming at 4 levels (0, 1, 2 and 4 mg.L-1). According to results, application of drought stress led to the reduction grain yield, so, the 50% and 75% water discharge treatments led to 9% and 37% the reduction of grain yield as compared to control, respectively. In relation to bacteria treatments, highest grain yield (4.35 t/ha) obtained by azotobacter inoculation. In relation to auxin application, the 4 mg.L-1 treatment led to 6%the increase of grain yield as compared to control. Highest means of grain yield (3.25 t/ha) under 75% discharge water observed by azotobacter inoculation. We concluded that priming with auxin and rhizobacteria, plays an important role in the induction of tolerance to drought and overcome limitations created by the drought stress on wheat.
- Publication
EurAsian Journal of Biosciences, 2018, Vol 12, Issue 2, p467
- ISSN
1307-9867
- Publication type
Academic Journal