Assessing the impact of fluorescent Pseudomonas on properties of canola seedlings under drought stress induced by polyethylene glycol

Subject Areas :

Somayeh Karami Chameh ¹ , Massoumeh Namrvari ² , Amin Fathi ³ , Sadegh Bahamin ⁴ , Fakher Kardoni ⁵

1 - Graduate of Agronomy, University of Agriculture and Natural Resources Ramin Khuzestan, Iran
2 - Graduate of Agronomy, University of Agriculture and Natural Resources Ramin Khuzestan, Iran
3 - Ayatollah Amoli Branch, Islamic Azad University, Young Researchers and Elite Club, Amol- Iran
4 - PhD student in agro-ecology Ferdowsi University of Mashhad,Mashhad, Iran
5 - .College of Agriculture, University of Birjand, Birjand, Iran.

Received: 2015-09-11 Accepted : 2015-12-11 Published : 2015-02-20

Keywords: Drought stress, Canola, seedlings, Pseudomonas,

Abstract :

 Nowadays, drought stress and environmental pollutions due to irregular consume of chemical fertilizers, are the most important problems in agricultural productions. This study aimed to examine the bacteria Pseudomonas on vegetative characteristics of canola seedlings under drought stress in the Seed Technology Laboratory, Faculty of Agriculture University Ramin was conducted in 2011. A factorial experiment in completely randomized design with three replications and 12 treatments were performed. The first factor Pseodomonas fluorescence strains of bacteria at three levels: control (no inoculation with the seed), 108p and 169 p and the second factor, 4 levels of drought stress were including zero (distilled water), -0.3, -0.6 and -0.9 MPa. The results showed that the effects of drought stress was significant on all traits measured. Pseudomonas aeruginosa on length of shoot and root and shoot dry weight and had a significant effect. At the highest levels of stress (-0.9MPa), shoot dry weight was hot 0.9 amount compared to the treatment of stress was 62 percent. The inoculation of seeds with Pseudomonas fluorescens bacteria p 169, shoot fresh weight to the value of 68g was found that compared to non-inoculated treatment was 15 percent.Generally, the use of fluorescent Pseudomonas strains of bacteria could reduce the effects of drought on the properties of canola seedlings.