SUSCEPTIBILITY LEVELS OF SOME CHESTNUT CULTIVARS AND GENOTYPES TO THE CHESTNUT GALL WASP IN TURKEY NIVOI OSETLJIVOSTI NEKIH KULTIVARA I GENOTIPOVA KESTENA NA KESTENOVU OSU U TURSKOJ
Genetika, vol.54, no.3, pp.1205-1216, 2022 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 54 Issue: 3
- Publication Date: 2022
- Doi Number: 10.2298/gensr2203205c
- Journal Name: Genetika
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, CAB Abstracts, Veterinary Science Database, Directory of Open Access Journals
- Page Numbers: pp.1205-1216
- Keywords: Castanea sativa, complex hybrid, infestation index, Torymus sinensis
- Ondokuz Mayıs University Affiliated: Yes
Abstract
The Asian chestnut gall wasp (ACGW) is one of the most important pests threatening most Castanea species. The best management strategy against this pest can be establishing new orchards with resistant cultivars along with biocontrol (parasitoid Torymus sinensis Kamijo (Hymenoptera: Torymidae)). In Turkey, ACGW was first detected in 2014 at Gacık village of Yalova province. Bursa, İstanbul, Sakarya, Kocaeli, Balıkesir, Bilecik, Düzce, Giresun, Bartın, Zonguldak, Sinop and İzmir provinces are also infected with ACGW. This study was carried out to determine the levels of susceptibility of chestnut cultivars/genotypes to ACGW. The study was carried out in Yalova province between 2016 and 2018. In total, 15 cultivars/genotypes were involved in the study, including European (C. sativa) chestnuts (Albayrak, Altınay, ‘Erfelek’, ‘Osmanoğlu’, Salıpazarı, ‘Serdar’, ‘Ünal’), interspecific hybrids (‘Marigoule’ and BDB-L) and complex hybrids (‘Akyüz’, ‘Macit 55’, ‘Ali Nihat’, A9, A55, A56) were tested in the study. In April 2016, five to seven-year-old seedlings were “bark” grafted, and susceptibility to the ACGW was evaluated by recording the ratio of infected buds (%), visual assessment of the damage (severity), and calculations of an infestation index. Among the cultivars and genotypes tested in the study, the ‘Akyüz’ cultivar was determined to exhibit the highest resistance against the ACGW. To fully understand the resistance mechanism of the ‘Akyüz’ cultivar, molecular and biochemical studies should be done and compared with other results.