Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Research Journal of Microbiology
  Year: 2011 | Volume: 6 | Issue: 4 | Page No.: 343-355
DOI: 10.3923/jm.2011.343.355
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Effects of Plant Growth Promoting Rhizobaceria on Growth and Yield of Tef (Eragrostis tef Zucc. Trotter) under Greenhouse Condition

Delelegn Woyessa and Fassil Assefa

Abstract:
The aim of this study was to assess the effect of Plant Growth Promoting Rhizobacteria (PGPR) on growth and yield of tef. About 160 bacteria were isolated from rhizosphere of tef (Eragrostis tef Zucc. Trotter) and characterized on the basis of PGPR and biochemical features. Four best isolates (AURB15, AURB34, AURB56 and AURB65) were selected and further characterized by physiological methods and identified to species level using API kit method. The selected isolates were then evaluated by inoculation on to two tef varieties (DZ-Cr-37 and DZ-01-974) at greenhouse condition. The isolates displayed diverse morphological, physiological, biochemical and PGPR characteristics. They showed growth in wide range of temperature, pH and NaCl. The isolates were found to belong to three genera and four species. Isolate AURB15 (Pseudomonas fluorscens) was observed to significantly increase mean root dry weight (39%), root shoot ratio (42%) and yield (45%) of the tef variety DZ-Cr-37; like wise isolate AURB65 (Bacillus subtilis) better increased mean root dry weight (28%), root shoot ratio (19%) and yield (44%) of tef variety DZ-01-974. Comparable mean shoot dry weight, % nitrogen and total protein (p>0.05) was recorded by inoculation of the isolates. Where as inoculation of two isolates, AURB34 (Burkholderia cepacia) and AURB56 (Bacillus coagulans) on DZ-01-974 did not increase mean root dry weight, root shoot ratio and yield of DZ-01-974. The increase in mean root dry weight, root shoot ratio and yield of tef varieties DZ-Cr-37 and DZ-01-974 by AURB15 (Pseudomonas fluorscens) and AURB65 (Bacillus subtilis) suggests that the isolates have better potential for further field testing and application in improving yield of the tef varieties.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Isolation and Characterization of Plant Growth Promoting Traits of a Rhizobacteria: Pantoea agglomerans lma2
  •    Screening of Phosphate Solubilizing Bacterial Isolates for the Growth Improvement of Tectona grandis Linn.
  •    Differential Response of Inoculation with Indole Acetic Acid Producing Pseudomonas Sp. In Green Gram (Vigna radiata L.) and Black Gram (Vigna mungo L.)
  •    Influence of Carrier Materials and Storage Temperature on Survivability of Rhizobial Inoculant
  •    Development of Salt Stress-tolerant Plants by Gene Manipulation of Antioxidant Enzymes
  •    Contrasting Responses to Phosphorus Status by Arachis pintoi (Krapov and W.C. Gregory): A Lesson for Selecting Vegetables for Cultivation in Kenyan Ecozones
  •    Plant Growth Promoting Activities of Fungi and their Effect on Chickpea Plant Growth
  •    Impact of Organic and Inorganic Fertilizers on Microbial Populations and Biomass Carbon in Paddy Field Soil
How to cite this article:

Delelegn Woyessa and Fassil Assefa, 2011. Effects of Plant Growth Promoting Rhizobaceria on Growth and Yield of Tef (Eragrostis tef Zucc. Trotter) under Greenhouse Condition. Research Journal of Microbiology, 6: 343-355.

DOI: 10.3923/jm.2011.343.355

URL: https://scialert.net/abstract/?doi=jm.2011.343.355

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom