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Information × Registration Number 0221U100941, 0119U100228 , R & D reports Title Latent infection of fomogenous rotten potatoes and ecologization of disease control measures in the western forest-steppe of Ukraine popup.stage_title Head Hunchаk Volodymyr M., Кандидат сільськогосподарських наук Registration Date 11-01-2021 Organization Ukrainian scientific-research plant quarantine station popup.description2  Studies conducted during 2019-2020 to detect latent infection of phomosis rot in the western region of the forest-steppe zone (Zakarpattia, Chernivtsi, Ivano-Frankivsk regions) showed that the causative agent of phomosis rot of potatoes in latent form is a widespread pathogen - a form of labial disease. in each of the selected batches ranged from 0 to 37%. According to culture characteristics on 2% maltose (MA) and malt agar, the isolated pathogens were identified as Phoma exigua var. exigua. The use of biological products reduced (after two months of storage) the number of affected tubers (on average over two years) by 2.3-2.9 times compared with the control. The effectiveness of biological products ranged from 57.1 (Gaupsin) to 68.3% (Trichodermin). The stability of potato varieties and hybrids obtained from the Institute of Potato NAAS (IR) and the Ukrainian Institute of Plant Variety Examination was assessed. Varieties with relative resistance to the disease were noted: Sorentina (Pu 7.5%); Mistress (Pu 8.0%); Colonnade (Pu 6.7%); Lucilla (Pu 6.5%); Bar white (Pu 7.0%); Lilly (Pooh 5.6%); Prince (Po 5.5%). Fountain (Pu 5.3%); Sontsedar (Pu 7.1%); Rodrigo (Pu 6.2%); Paradiso (Pu 6.8%); Laundin (Pu 8.2%); Mystery (Pu 9.0%); Karelia (Pu 7.7%). Product Description popup.authors Andriichuk Tetiana O Hunchak Volodymyr M popup.nrat_date 2021-01-11 Close