One of the most important problems in the cultivation of potato plants is their susceptibility to diseases. There are many disease agents that cause significant loss in yield and limit cultivation. One of these agents is Alternaria solani (Ell. and G. Martin) Sor., a facultative saprophytic fungus. The pathogen fungus causes early blight disease in potatoes. In this study, which was carried out in the field and laboratory of the Central Black Sea Transition Zone Agricultural Research Institute in 2019, the reactions of 594 clones created by crosses between some commercially registered potato varieties, local potato varieties, and some clones with superior characteristics against A. solani were identified using the detached leaf method. In order to determine the disease reactions, 5 mm diameter fungus discs taken from the actively growing tips of the cultures of A. solani isolate under sterile conditions were placed on the leaflets in five replications, and only the PDA medium was placed on the leaflets used for control purposes. As a result of the research, of the clones belonging to the A3/15 x Bafana combination, 70 were immune, 2 were tolerant, 9 were susceptible, 18 were highly susceptible. 168 of the clones belonging to the Başçiftlik Beyazı x Lady Olympia combination were immune, 1 was resistant, 4 were tolerant, 5 were susceptible, 23 were highly susceptible. 209 of the clones belonging to T5/4 x Bafana combination were immune, 2 were tolerant, 7 were sensitive and 46 were highly susceptible. Thus, in order to contribute to the development of resistant varieties, the conditions of the breeding material were revealed and evaluated as selection criteria.
Tokat İli (Türkiye) ve 11 ilçesinden 2014-2017 yılları arasında toplanan orman toprak örneklerinden izole edilen entomopatojenik fungusların, Kolorado patates böceği, Leptinotarsa decemlineata (Say, 1824) (Coleoptera: Chrysomelidae)'nın üçüncü dönem larva ve erginleri üzerindeki etkileri laboratuvar koşullarında değerlendirilmiştir. İlk olarak 33 izolatın L. decemlineata larvaları ve erginleri üzerindeki etkinliğini belirlemek için 1×108 konidi/ml’de tek doz etkinlik denemeleri yapılmıştır. Tek doz etkinlik denemelerinde en yüksek ölüm oranlarını veren dört izolat olan Beauveria bassiana (Balsamo-Crivelli) Vuillemin (Hypocreales: Cordycipitaceae)’yı içeren GOPT-498-4, GOPT-529-2, GOPT-552, GOPT-562 izolatları 1×103, 1×105, 1×107, 1×108, 1×109 konidi/ml’de doz-ölüm denemelerinde kullanılmıştır. En düşük LC50 ve LT50 değerleri sırasıyla 1.4×106 konidi/ml ve 10.6 gün ile GOPT-552 izolatı için kaydedilmiş olup, bunu GOPT-562 ve GOPT-529-2 izolatları takip etmiştir. Beauveria bassiana (GOPT-552, GOPT-562) izolatları L. decemlineata larva ve erginlerine karşı daha etkili olmuştur. Dolayısıyla GOPT-552 ve GOPT-562 izolatlarının Kolorado patates böceğinin biyolojik kontrolü için potansiyele sahip olduğu görülmüştür.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.