Effects of Biological Fertilizers on the Growth and Nutrient Content of Grapevine

Tüfenkçi Ş.

v“1st International Organic Agriculture and Biodiversity Symposium 27-29 September 2017 Bayburt” “I. Uluslararası Organik Tarım ve Biyoçeşitlilik Sempozyumu 27-29 Eylül Bayburt”, Bayburt, Turkey, 27 - 29 September 2017, vol.1, pp.37

  • Publication Type: Conference Paper / Summary Text
  • Volume: 1
  • City: Bayburt
  • Country: Turkey
  • Page Numbers: pp.37
  • Van Yüzüncü Yıl University Affiliated: Yes


Abstract The objective of this study was to evaluate the effects of seven N2-fixing and/or P-solubilizing and siderophoreproducing microorganism based bio-fertilizers in single and triple strain combinations isolated from the acidic rhizospheric soil of native tea, grapevine and wild red raspberries. Effect of these bio-fertilizers on chlorophyll content, macro- and micro-nutrient concentrations and seedling growth of grapevine cv. ‘Italy’ (Vitis vinifera). was determined. The experiments were arranged in a completely randomized design of eight treatments (seven bio-fertilizer treatments and an uninoculated control) and three replicates (each with nine rooted Grafted Grapevine saplings). Liquid biological fertilizers were applied to the grapevine seedlings in the pot by dipping and injecting methods. The greenness or total chlorophyll content was measured using non-destructive Minolta chlorophyll meter SPAD 502 of the 5th and 6th leaves. 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.