Agronomy Research (2006) 4, 349-352

A. Sasnauskas, D. Gelvonauskiene, B. Gelvonauskis, V. Bendokas and D. Baniulis (2006)
Resistance to fungal diseases of apple cultivars and hybrids in Lithuania
Agronomy Research 4 (special issue), 349-352
Abstract: Thirty apple (Malus domestica Mill.) cultivars and hybrids were evaluated for resistance to scab (Venturia inaequalis (Cke.) Wint.), apple blotch (Phyllosticta mali Pr.at Del.) and canker (Nectria galligena Bres.). Resistance to scab and apple blotch were studied in 2003-2005 and to canker in 2005. Injuries caused by fungal diseases were evaluated according to a 6 point scale: 0 - no disease symptoms detected on leaves or branches, 5 - injured more than 75% of leaf area or, in the case of canker, the branch is girdled by distorted area. Meteorological conditions were favourable or moderately favourable for the development of pathogens. It was ascertained that apple hybrids No 20429 and No 20016 are characterized as complex-resistant to scab, apple blotch and canker. Cultivar 'Kurnakovskoe' and hybrids No 19399, No 19707, No 19646, No 19942, No 20235, No 20239, No 20978 and No 24-40-52 are characterized as complex-resistant to scab and apple blotch. Cultivars 'Delikates', 'Ante!', hybrids No 25-50-126 and No 25-50-132 were the most sensitive to scab; 'Pamyat' Syubarovol' and No 25-51-122, to apple blotch, and 'Katja', 'Yubilyar', 'Pamyat' Syubarovol', 'Bolotovskoe' and No 19942, to canker.
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Database assignments for author(s): A. Sasnauskas

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Venturia inaequalis	Apple (Malus)	Lithuania
	Neonectria ditissima	Apple (Malus)	Lithuania
	Didymella macrostoma	Apple (Malus)	Lithuania