Türkiye Entomoloji Dergisi

Yazarlar: Zübeyir DEVRAN, İbrahim MISTANOĞLU, Tevfik ÖZALP

Konular:-

Anahtar Kelimeler:Bioassay,Meloidogyne,Tomato seedling,Reaction

Özet: Tomato is one of the most important vegetables grown throughout the world. Root-knot nematodes cause significant economic yield losses in tomato. Development of tomato cultivars which are resistant to root-knot nematodes is the most effective management method. In tomato, resistance to root-knot nematodes is determined by bioassay and molecular markers. Molecular markers are commonly used to screen for resistance genes in breeding programs. However, bioassays are also required for identification of the performance of resistance genes. Different parameters such as stage of seedling, soil temperature, nematode quantity and nematode virulence effect performance of bioassays. In the present study, the response of tomato seedlings with different numbers of true leaves to Meloidogyne incognita isolate S6 was compared under controlled conditions. Seedlings showed different reactions to M. incognita inoculation. The results indicated that stage of tomato seedlings can be important for bioassay and that tomato seedlings with four true leaves are best for nematode testing. These results will help in the optimization of root-knot nematode tests used in tomato breeding.

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