Effects of different pseudomonas flluoresence bacterium strains on yield, yield components and some traits of safflower

Subject Areas : Journal of Plant Ecophysiology

A. Rahimi ¹ , M. Jamialahmadi ² , K. Khavazi ³ , M. Sayyari-Zahan ⁴ , R. Yazdani ⁵

1 - دانش آموخته کارشناسی ارشد دانشگاه بیرجند
2 - دانشیار دانشگاه بیرجند
3 - استادیار دانشگاه تهران
4 - استادیار دانشگاه بیرجند
5 - دانشجوی دکتری دانشگاه بیرجند

Received: 2014-05-28 Accepted : 2014-05-28 Published : 2013-11-01

Keywords:

Abstract :

In order to study the effects of using bacteria (Pseudomonas) on yield and yield components of safflower (Carthamus tinctorious L( var. IL111, an experiment was conducted during 2009-2010 at Agricultural Research Station, Faculty of Agriculture, the University of Birjand, as a randomized complete blocks design with 10 treatments with three replications. Treatments included different Pseudomonas fluorescent (36, 99, 169 and 187) and Pseudomonas putida (11, 41, 159, 168 and 177), along with a control (without inoculation). In this study yield and yield components, and quality characteristics (oil and protein %) were measured. Inoculation with different strains of bacteria had no significant effects on any of the plants properties; however, group comparison indicated a significant difference at 0.05 probability level in traits such as number of primary branches per plant, leaf and stem dry weights, stem diameter and seed weight, and at 0.01 probability level for fat quality measures. Most of different bacteria strained tested caused to crop show superiority over the control plants, in terms of quantitative and qualitative traits, so the seed and oil yields were increased by 25 and 50%, respectively. The plants inoculated by Pseudomonas putida strains predominated than those with fluorescence strains for all traits, except the heads per plant. The strain 177 of Pseudomonas putida caused higher leaf area index, dry matter accumulation and crop growth rate to be significantly higher than other strains. It seems that using of bacteria (Pseudomonas) to improve plant growth characteristics can be used.