The best domestic hybrids of white cabbage for Mari El

The purpose of the research is to test commercial and promising cabbage hybrids in the conditions of the Gornomariysky district of the Mari El Republic and select the best ones for growing in this zone. Hybrids of white cabbage of Poisk agricultural Holding were tested on the basis of Raevskaya S.I. farm in 2018–2019. Hybrids F₁ Univers and F₁ Poisk 2018, the mid-late maturity and late hybrids for storing F₁ Gertsoginya and F₁ Continent, were taken as the studied material. The soil of the experimental plot is sod-podzolic, with a heavy loam texture, humus content of 1.9%, pH – 5.1. Weather conditions during the years of research were not entirely favorable for the cultivation of white cabbage, the weather was hot arid and lack of rainfall, both during planting and in certain periods during the growing season. Despite this, hybrids had high productivity, marketability and good quality of heads of cabbage. The medium-late hybrid of cabbage F₁ Univers has the highest yield of commercial hybrids of 117.3–131.2 t/ha, holds a stable position in the market of medium-late cabbage, successfully competes with the best foreign counterparts and ensures the receipt of products in the fall and in the first half of winter. Hybrid F₁ Gertsoginya gave a stable yield of heads of cabbage during the years of research at the level of 108.1–108.5 t/ha. The hybrid has excellent plant uniformity, high standard of heads of cabbage, with an excellent internal structure and is designed for long-term storage of up to 8 months. New hybrids F₁ Poisk 2018 and F₁ Continent had high yields of 92.8–138 t/ha and are also recommended for cultivation in this region, and F₁ Poisk 2018 has the highest yields during the years of research among the studied hybrids.

Key words: white cabbage, hybrid, high productivity, variety testing, the best hybrids.