Emre EVLİCE, Fatma Dolunay ERDOĞUŞ, Gökhan YATKIN

Bazı havuç çeşitlerinin kök-ur nematodu türlerine (Meloidogyne spp. Goeldi, 1982) karşı reaksiyonu

Kök-ur nematodlarının diğer sebzelerde olduğu gibi havuç bitkisinde de önemli verim kayıplarına yol açtığı bilinmektedir. Bu çalışmada İç Anadolu Bölgesi’nde ticari olarak yaygın şekilde kullanılan üç farklı havuç çeşidinin dört farklı kök-ur nematodu türüne karşı reaksiyon durumları 2018 yılında iklim odasında saksı denemeleri ile değerlendirilmiştir. Köklerde oluşan ur ve yumurta paketi sayılarına göre Romance, Chantenay, Nantes çeşitleri Meloidogyne chitwoodi, M. javanica, M. incognita ve M. hapla’ya karşı hassas bulunmuştur. Meydana getirdikleri yumurta paketi ve gal sayılarına göre M. chitwoodi ve M. incognita türlerinde, çeşitler arasında fark tespit edilmemiştir (P>0.05). M. javanica türünün 234.4 adet yumurta paketi ve gal ile en fazla Nantes çeşidinde; M. hapla’nın ise 193.6 adet ile en fazla Nantes çeşidinde çoğaldığı belirlenmiştir (P<0.05). Çeşitler açısından ise Chantenay çeşidinde türler arasında fark tespit edilmemiş olup (P>0.05), Nantes çeşidinde M. javanica (234.4) ve M. hapla (193.6), Romance çeşidinde ise M. javanica (207.8), M. hapla (176.4) ve M. chitwoodi (141.6) türleri aynı grupta yer almıştır (P<0.05). Çalışma sonucunda Romance, Chantenay ve Nantes havuç çeşitlerinin kök-ur nematodlarına hassas olduğu ve bulaşık alanlarda bu çeşitlerin kullanımında dikkatli olunması gerektiği sonucuna ulaşılmıştır.

Anahtar Kelimeler:

Kök-ur nematodu, Meloidogyne, havuç, çeşit reaksiyonu

Reaction of some carrot varieties against root-knot nematode species (Meloidogyne spp. Goeldi, 1982)

Root-knot nematodes (Meloidogyne spp.) cause serious damage by forming galls on the roots of the many vegetables host plants including carrots. In this study, the reactions of three different carrot varieties that are commercially used in the Central Anatolia region were evaluated against four different types of root-knot nematodes in a growth chamber pot trial in 2018. Based on the observation of root galling and the egg-mass numbers, Romance, Chantenay and Nantes carrot varieties were considered susceptible to Meloidogyne chitwoodi, M. javanica, M. incognita and M. hapla. There were differences in egg-mass and gall numbers among all carrot varieties for both M. chitwoodi and M. incognita (P>0.05). M. javanica reproduced the highest number of 234.4 egg masses and gall numbers on Nantes variety respectively. On the other hand, M. hapla reproduced 193.6 egg masses and galling on Nantes variety. From the carrot variety point of view, no differences detected between the nematode types on Chantenay. However on Nantes variety M. javanica (234.4), M. hapla (193.6) and on Romance M. javanica (207.8), M. hapla (176.4) and M. chitwoodi (141.6) were categorized in the same group. As a result of the study, it was concluded that Romance, Chantenay and Nantes carrot varieties are sensitive to root-knot nematodes. Because of this, these varieties should be used carefully in contaminated areas.

Keywords:

root-knot nematodes, Meloidogyne, carrot, reaction of variety,

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