Effects of fungicide spray programs on Grapevine powdery and downy mildew diseases control and some quality criteria of Cardinal and Sultana Seedless grapes
Abstract
Systemic fungicides may cause some physiological changes on plants besides their suppressive effects on plant diseases. In this study, effects of four different fungicide spray programs (for control of Grapevine powdery and downy mildew diseases) both on diseases control and some quality criteria of Cardinal and Sultana Seedless grapes were investigated. Trials were repeated three times in experimental areas of Manisa Viticulture Research Institute experimental areas in 2009-2011 years. The vines were sprayed with fungicides in 14-day-intervals according to the scheduled programs. Berry and bunch size, berry weight, soluble solids (brix°), yield, nutrient accumulation in leaves and powdery-downy mildew disease severity on bunches were examined in growth season or at harvest .Strobilurin spray programs increased berry size (up to 16.1% in width and 19.8% in length) and berry weight (up to 35%) in Sultana Seedless but it could not provide any significant increase in Cardinal grape in every years of experiment. However the spray program of this group retarded accumulation of soluble solids (brix°) in juice of Sultana Seedless grape. This corresponded to 7-8 days retardation with 2.8% brix point in 2011 year, compared to control. Strobilurin based spray programs did not have any effect on the accumulation of macro elements in vine leaves, but it increased some micro element accumulations (especially zinc) up to 3.2 fold in Cardinal and 3.4 fold in Sultana Seedless depending on years. Although it varied to years, fungicide sprays could suppress diseases up to 98.2% maximally. It has been revealed at the end of this study that strobilurin fungicides affect vine physiology especially on Sultana Seedless grapes.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Davut Soner Akgül
Çukurova Üniversitesi, Ziraat Fakültesi, Bitki Koruma Bölümü, Balcalı, Sarıçam, Adana, Türkiye
Türkiye
Serkan Önder
Gıda Tarım ve Hayvancılık Bakanlığı, Manisa Bağcılık Araştırma Enstitüsü Müdürlüğü, Horozköy, Yunus Emre, Manisa
Türkiye
Özen Merken
Gıda Tarım ve Hayvancılık Bakanlığı, Manisa Bağcılık Araştırma Enstitüsü Müdürlüğü, Horozköy, Yunus Emre, Manisa
Türkiye
Metin Kesgin
This is me
Gıda Tarım ve Hayvancılık Bakanlığı, Manisa Bağcılık Araştırma Enstitüsü Müdürlüğü, Horozköy, Yunus Emre, Manisa
Türkiye
Adem Yağcı
Gazi Osman Paşa Üniversitesi, Ziraat Fakültesi, Bahçe Bitkileri Bölümü, Taşlıçiftlik, Tokat
Türkiye
Publication Date
September 30, 2017
Submission Date
May 7, 2017
Acceptance Date
August 17, 2017
Published in Issue
Year 2017 Volume: 57 Number: 3
Cited By
Sultani Çekirdeksiz Üzüm Tiplerinin Hasat Sırasındaki Verim ve Bazı Kalite Özellikleri
Türkiye Tarımsal Araştırmalar Dergisi
https://doi.org/10.19159/tutad.458956
