Effects of Root Plant Growth Promoting Rhizobacteria Inoculations on the Growth and Nutrient Content of Grapevine |
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| Authors: | Ummugulsum Erdogan Metin Turan Fadime Ates Recep Kotan Ramazan Çakmakçi Yasar Erdogan |
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| Institution: | 1. Department of Food Engineering, Faculty of Engineering, Bayburt University, Bayburt, Turkeygulsum25@gmail.com;3. Department of Genetic and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey;4. Viticulture Research Institute, Department of Breeding Technique, Manisa, Turkey;5. Faculty of Agriculture, Department of Plant Protection, Atatürk University, Erzurum, Turkey;6. Faculty of Agriculture, Department of Field Crops, ?anakkale Onsekiz Mart University, ?anakkale, Turkey;7. Demir?zü Vocational School, Department of Veterinary, Bayburt University, Bayburt, Turkey |
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| Abstract: | The objective of this study was to evaluate the effects of seven nitrogen (N2)-fixing and/or phosphorus (P)-solubilizing and siderophore-producing microorganism based bio-fertilizers in single and triple strain combinations isolated from the acidic rhizospheric soil of native tea, grapevine, and wild red raspberries. As a result of this study, bacterial efficiency was found to be variable and depended on the bacterial strains and evaluated growth parameters. Plant growth-promoting rhizobacteria (PGPR) has improved macro- and micro-nutrient concentrations in grapevine leaves, and stimulated plant growth. Triple inoculation and single inoculation based bio fertilizers were found to stimulate overall plant growth, including shoot and leaf weight, main shoot length, leaf ground index, chlorophyll, nitrogen, zinc and iron content of grapevine cv ‘Italy’. Bio-fertilizers increased the nutrients such as nitrogen, zinc and iron concentrations and consequently increased the chlorophyll content of the leaves. |
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| Keywords: | Chlorophyll content grapevine nutrients PGPR plant growth yield |
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