Features of disease affected varieties and hybrids of carrots and beets created in the Primorsky vegetable experimental station in the monsoon climate of the Far East

UDC 635.1.631.523 (571.63)
https://doi.org/10.25630/PAV.2020.77.81.005

Vanjushkina I.A., Miheev Yu.G., Leunov V.I.

For four years (2016–2019), research on the resistance of promising varieties of carrots and beets of local selection to fungal and bacterial diseases during the growing season in the monsoon climate of the Far East was conducted on the experimental field of the Primorsky vegetable experimental station - a branch of the FSBSI Federal Scientific Vegetable Center against a natural infectious background. Carrot varieties Typhoon, Leader, Garant, Primorskaya 22 and hybrid F1 Forward were tested, as well as beet varieties Primorskaya 4, Primorskaya cylindrical and 5 numbered samples. Carrot leaf infestation was evaluated for the entire complex of diseases: Alternaria dauci (Kuhn.) Groves & Skolko, Cercospora carota (Pass.) Solh., Xanthomonas carotae Dows, and beet leaves – for Cercospora beticola Sass. The first signs of diseases (A. dauci) were detected on the leaf surface of carrots from the second decade of July – the beginning of the first decade of August and in the second decade of August – early September, their prevalence was 100% with a maximum weighted average score of 2.6. The first signs of infection of table beet samples with cercosporosis were noted in the first and second decades of July and by the second decade of August, the prevalence of the disease in almost all samples was 100%. At the same time, there was a direct dependence of the prevalence and degree of plant diseases on the amount of precipitation and air temperature. The greatest resistance to diseases on the leaf surface of carrots showed a hybrid of carrots F1 Forward and cercosporosis – a sample of beet POOS 22. The Leader carrot variety and the POOS 22 beet sample can be used in breeding work to create varieties and hybrids with increased resistance to infectious diseases.

Key words: carrot, beet, Far East, infestation, disease resistance

Vanyushkina I.A., senior research fellow, Primorskaya vegetable experimental station – branch of the FSBSI Federal Scientific Vegetable Center (PVEX – branch of FSBSI FSVС)

Mikheev Y.G., D. Sci. (Agr.), chief research fellow, head of Department, PVEX – branch of FSBSI FSVC. E-mail: jgmiheev53@mail.ru

Leunov V.I., D. Sci. (Agr.), professor of the Department of vegetable growing, RSAU-MTAA after K.A. Timiryazev. E-mail: vileunov@mail.ru

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For citing: Vanjushkina I.A., Miheev Yu.G., Leunov V.I. Features of disease affected varieties and hybrids of carrots and beets created in the Primorsky vegetable experimental station in the monsoon climate of the Far East. Potato and vegetables. 2020. No10. Pp. 29-32. https://doi.org/10.25630/PAV.2020.77.81.005 (In Russ.).

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