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Effects of plant growth promoting rhizobacteria (PGPR) on yield, growth and nutrient contents in organically growing raspberry
Scopus
Toplam 268 atıf DOI
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 cluster 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. © 2006 Elsevier B.V. All rights reserved.
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Effects of Rhizobacteria on the Nutritional Status of Blackberry Cultivars Grown in Calcareous Soil Conditions
Scopus
Havuzumuzda 2 atıf almış
Limestone soils, which possess restricted solubility of microelements such as iron, manganese, zinc, and copper, cover 30% of the earth’s land surface. Chlorosis is a devastating disease that can drastically reduce agricultural yields. As a result, the farmer must use more expensive fertilizer to resolve the problem, increasing the cost of producing the crop. In the present study, it was found that treatment T8 (T8:637Ca+SY48+SY55) was found to be more effective in terms of nutrient supply to the plants in both blackberry cultivars. The nitrogen, phosphorous, and iron content (2.14–4.03%, 0.40% and 125.54 mg kg−1) were found to be highest in ‘Chester’ as compared to cultivar ‘Jumbo’ (1.93–3.62%, 0.37% and 112.90 mg kg−1), respectively. Copper content varied between 6.42 mg kg−1 and 14.55 mg kg−1 in the ‘Chester’, while it varied from 5.77 mg kg−1 to 13.09 mg kg−1 in the ‘Jumbo’ cultivar. The positive effects of rhizobacteria have been the subject of research, especially in arid, saline, and partially calcareous soils. According to the results of this research, it has been seen that positive results will be obtained from the use of bacteria with different abilities in nutrition together.
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Kurumlar (1)
Selçuk Üniversitesi
Selçuklu, Turkey