The influence of intensification techniques on the morphometric parameters of Siberian potato varieties

The goal of the research was to study the effect of intensification agents (insecticide-fungicide seed dressing, humic preparations, and mineral fertilizers) on the morphometric parameters of Siberian potato varieties of different maturity groups.

The objects and methods of the research. Three Siberian varieties were selected as objects of the research: early Yuna, mid-early Lina, and mid-season Zlatka. The research was conducted in 2022-2024 in the Novosibirsk region under soil and climatic conditions typical of the forest-steppe zone of the Western Siberia. The experiment was set up and records were taken according to generally accepted methods. The number of stems, stem length, and plant weight were recorded. Each of the three potato varieties was placed against a background of mineral fertilizers, N₄₀P₄₀K₈₀, and against a background of natural fertility. Pre-planting treatment of tubers was carried out with the Celeste Top insecticide-fungicide, KS at application rates of 0.4 and 0.2 l/t mixed with the humic preparations Beres-8, Zh (application rate 0.2 l/t) and Relikt R, Zh (0.01 l/t). The obtained data were processed using the methods of variance analysis to determine the degree of influence of factors and their interactions.

The results and discussion. It was found that Yuna variety was characterized by high responsiveness to the optimization of mineral nutrition and the use of growth regulators: against the background of N40P40 K80, a reliable increase in the number of stems by 39% and plant height by 23.4% was noted, and the bush weight more than doubled compared to the control one. Lina variety was distinguished by high morphological indicators and a pronounced response to the level of mineral nutrition, while the effect of humic preparations was secondary. Zlatka variety demonstrated high stability of morphological traits and low responsiveness to the studied agricultural practices.

Conclusion. The effectiveness of the studied practices was largely determined by varietal characteristics.

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