POTASYUMUN DOMATESTE KÖK-UR NEMATODU (MELOİDOGYNE İNCOGNİTA) ÜZERİNE ETKİSİ

Year 2020, Volume: 21 Issue: 2, 95 - 102, 30.12.2020

Naile Arslan Gizem Aksu , Hamit Altay

Abstract

Bu çalışmada; kök-ur nematodunun, domates bitkisi üzerindeki zararının potasyumla azaltılması amaçlanmıştır. Deneme bitki yetiştirme odasında; potasyumun 4 farklı dozu (10, 20, 40, 80 mg kg-1 K) ve 2 farklı nematod durumuyla (var, yok) 4 tekerrürlü olarak tesadüf blokları deneme desenine göre kurulmuştur. Bitkiler kum kültüründe, Hoagland besin solüsyonuyla yetiştirilmiştir. Bitkinin stresten etkilenme seviyesini değerlendirmek için hasattan sonra yaprak oransal su içeriği, membran zararlanması, klorofil a, klorofil b, toplam klorofil ve karotenoid içerikleri belirlenmiştir. Denemeden elde edilen veriler MINITAB 17.0 istatistik programıyla değerlendirilmiştir.
Sonuçlara göre; köklerde ki urlanmalar, 0-10 ur skalasına göre düşük potasyum dozlarında (10, 20 mg kg-1 K) yüksek potasyum dozlarına (40, 80 mg kg-1 K) göre artmıştır. Potasyum uygulamaları ölçümleri yapılan parametreleri istatistiksel olarak etkilememiştir. Nematodun her iki (evet, hayır) durumunda da, potasyum dozu arttıkça, yaprak oransal su içeriği artarken, membran zararı azalmıştır. Elde edilen sonuçlara göre potasyum uygulamasının domates bitkilerinde kök-ur nematodunun (Meloidogyne incognita) verdiği zararı hafifletebileceği söylenebilmektedir.

Keywords

Domates, Kök-ur nematodu, Potasyum

Thanks

Kök-ur nematodu (Meloidogyne incognita) popülasyonu elde edebilmek için bulaşık domates bitkisi köklerini temin eden ve çalışmamızın nematod bulaştırma kısmında yol gösteren Çanakkale Onsekiz Mart Üniversitesi, Ziraat Fakültesi, Bitki Koruma Bölümü Öğretim Üyesi Prof. Dr. Uğur Gözel’e çok teşekkür ederiz.

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