Research
Extension
Courses
Consumers
--------------------------
Virtual
Tours Student
& Job Opportunities News
Articles Standards
--------------------------
Market
Information Events
Issues
Animal Welfare Strategic
Plans --------------------------
Links
Award-winners
Site Map
Effects of plant growth promoting rhizobacteria (PGPR) on yield, growth and nutrient contents in organically growing raspberry
E. Orhan1, A. Esitken1*, S. Ercisli1, M. Turan2 and F. Sahin3
Abstract
During 2003 and 2005, plant growth promoting effects of two Bacillus strains OSU-142 (N2-fixing) and M3 (N2-fixing and phosphate solubilizing) were tested alone or in combinations on organically grown primocane fruiting raspberry (cv. Heritage) plants in terms of yield, growth, nutrient composition of leaves and variation of soil nutrient element composition in the province of Erzurum, Turkey.
The results showed that Bacillus M3 treatment stimulated plant growth and resulted in significant yield increase. Inoculation of raspberry plant roots and rhizosphere with M3 and/or OSU-142 + M3, significantly increased yield (33.9% and 74.9%), cane length (13.6% and 15.0%), number of clusters per cane
(25.4% and 28.7%) and number of berries per cane (25.1% and 36.0%) compared with the control, respectively. In addition, N, P and Ca contents of raspberry leaves with OSU-142 + M3 treatment, and Fe and Mn contents of the leaves of raspberry with M3 and OSU-142 + M3 applications significantly improved under organic growing conditions. Bacterial applications also significantly effected soil total N, available P, K, Ca, Mg, Fe, Mn, Zn contents and pH. Available P contents in soil was determined to be increased from 1.55 kg P2O5/da at the beginning of the study to 2.83 kg P2O5/da by OSU-142, to 5.36 kg P2O5/da by M3 and to 4.71 kg P2O5/da by OSU-142 + M3 treatments.
The results of this study suggest that Bacillus M3 alone or in combination with Bacillus OSU-142 have the potential to increase the yield, growth and nutrition of raspberry plant under organic growing conditions.
See more at http://orgprints.org/18587/
Source
Scientia Horticulturae (2006) 111: 38-43
DOI: 10.1016/j.scienta.2006.09.002
Author Locations and Affiliations
(1) Atatürk University, Faculty of Agriculture, Department of Horticulture, 25240 Erzurum, Turkey
(2) Atatürk University, Faculty of Agriculture, Department of Soil Science, 25240 Erzurum, Turkey
(3) Yeditepe University, Faculty of Engineering and Architecture, Department of Genetics and Bioengineering, 34755 Kayisdagi, Istanbul, Turkey
* Corresponding author, E-mail aesitken@atauni.edu.tr
Posted June 2011