Evaluation of potato varieties from the Republic of Belarus from the doublet world collection of VIR in the Murmansk region

Relevance, Materials and Methods. The potato collection, represented by varieties from the Republic of Belarus in the amount of 40 samples, was studied in the Murmansk region. The study was conducted from 2000 to 2023, the duration of the study according to the samples ranged from 3 to 9 years. The study of potato samples was carried out according to the methodological guidelines for the maintenance and study of the world potato collection in Russia. The standards for the early ripening group were the Hibinskiy ranniy variety and the percentage of the average yield standard for the collection of early ripening varieties; the Imandra variety and the percentage of the average yield standard for the collection of mid-season varieties were chosen as the standard for the mid-season group; for the group of late-ripening varieties in the collection, the percentage of the average yield for the collection of late-ripening varieties was used as a standard, since there is no standard for lateripening ripening groups in the region.

Results. As a result of our study, we made the following conclusions: Phenology: Early shoots in the collection were noted not only in varieties of early ripening groups: Lazurit (k-11899), but also in varieties of medium-ripened Lasunok (k-11285), and the middle late (late maturing) groups: Vytok (k11897), Skarb (k-11904), Lan (k-12086). This indicates the wide adaptability and plasticity of these varieties. The stages of budding and flowering were standard. Early-maturing varieties were the first to enter the stage, then varieties with a longer maturation period. Economically valuable signs: The ability to accumulate an early harvest on the 60 day from planting in the group of early-ripening varieties, 4 varieties were distinguished: Archideуa (k-11921), Lazurit (k-11899), Neptun (k-12107), Yavar (k11907); 2 varieties in in the middle-ripening group: Granat (k-11652), Skarb (k-11904); 2 varieties in the middle-late (late) group: Garant (k-11923), Zdabytok (к-12085). As a result of the work carried out, the following varieties were identified: Granat (k-11652), Neptun (k-12107), Scarb (k-11904), Yavar (k11907) as donors of early maturity, productivity and large tuberosity. The variety Zdabytok (к-12085) in the conditions of the North showed the properties of early maturity, productivity, marketability and starchiness. The varieties Al’pinist (k-11920), Vytok (k-11897) can be recommended as donors of starchiness, as well as coarse tuberosity. The samples Sintez (k-11666), Mag (k-12238) stood out in terms of productivity and starchiness.

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