List of Articles Growth promotion

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  1 - Study Effect of Supplemental Nutrition on Yield, Yield Components and Grain Protein Content of Wheat Cultivars under Drain Water Irrigation
  Sardar Pasha Mojtaba Alavifazel Alireza Jafarnejadi Shahram Lack Mani Mojaddam
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  2 - Simultaneous effects of different levels of indole butyric acid and inoculation with growth promoting bacteria on some growth and biochemical traits of olive (Olea europaea L.) scion
  Mohammad Reza Safari Motlagh Behzad Kaviani Seyyed Ahmad Mousavi Mohammadi
  In order to investigate the effect of different levels of IBA and strains of Pseudomonas fluorescens bacteria, an experiment was conducted as factorial with completely randomized design containing two factors and three replications. In the first factor, the effect of th More

  In order to investigate the effect of different levels of IBA and strains of Pseudomonas fluorescens bacteria, an experiment was conducted as factorial with completely randomized design containing two factors and three replications. In the first factor, the effect of three levels of IBA (0, 2000, and 4000 mg/ ml) and in the second one, the effect of two strains of P. fluorescens (R5 and R64) were investigated on olive (Olea europaea cv. conservaliya). Results showed that bacterial inoculation with R5 strains increased shoot and root dry weight, total dry weight, nitrogen concentration, and phosphorus uptake compared to control, but there was no significant difference between R5 and R64 strains in terms of total chlorophyll. The 2000 mg/ml IBA also increased shoot and root dry weight, nitrogen concentration, total chlorophyll, and total dry weight compared to control while the maximum phosphorus uptake was obtained at 4000 mg/ml IBA. The interaction of effects of IBA and bacteria in morphological characteristics and uptake and concentration of elements showed that maximum average were obtained at 2000 mg/ml IBA and R5 strain treatment. According to the obtained results, the application of both of 2000 mg/ml IBA and R5 strain for improvement in rooting is recommended. Manuscript profile
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  3 - Effect of Piriformospora indica inoculation on some morphophysiological parameters in licorice (Glycyrrhiza glabra L.) under drought stress
  Mehdi Ghabooli Ellahe Rezaei Zahra Movahedi Ehsan Mohsenifard
  10.30495/ijpp.2020.677198
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  4 - The effect of rice endophyte bacteria on controlling Xanthomonas oryzae pv. Oryzae and expression of phenylalanine ammonia-liase gene in coexistence with Bacillus subtilis
  Hadis Yousefi Nader Hasanzadeh Keivan Behboudi Farid Beiki Firouzjahi
  Background & Objectives: Rice bacterial blight is one of the major factors limiting global rice production. Though the most effective method for controlling this disease is using resistant varieties, they are not stable in farm conditions due to high variability and More

  Background & Objectives: Rice bacterial blight is one of the major factors limiting global rice production. Though the most effective method for controlling this disease is using resistant varieties, they are not stable in farm conditions due to high variability and rapid evolution of pathogenic races. This study was aimed to evaluate rice endophyte bacteria's ability to improving plant growth and biologically controlling Xanthomonas oryzae pv. oryzae.Materials & Methods: At the first screening of endophyte isolates was performed to evaluate antagonistic activity against Xanthomonas in tryptic soy agar medium. The stimulation of plant growth by bacterial endophytes was assessed under the growth chamber and greenhouse conditions. The effect of bacterial isolates on disease severity and some rice growth factors under greenhouse conditions were determined, as well. In the final stage, the expression of the Phenylalanine ammonia-lyase gene by endophytic isolate Bacillus subtilis was evaluated using real-time PCR.Results: In terms of rice seed seedling vigor index, OS40, OS23, OS43, and OS31 isolates had a significant statistical effect as compared to control. Moreover, the use of OS3, OS23, OS31, and OS40 endophytes increased plant growth parameters. OS40 and OS23 bacterial inoculants were more successful in reducing the severity of the disease and the promotion of plant growth. PAL expression level during the experiment period was significantly higher and faster in plants treated with OS40than those treated only with Xanthomonas- isolates.Conclusion: Rice bacterial endophytes could increase plant growth and reduce disease severity, thus they can be considered as a promising and environmentally- a friendly strategy for sustainable agriculture development. Manuscript profile