Open AccessVariety testing of Helianthus annuus L. of domestic selection under conditions of the steppe zone of the Crimea
Author(s) -
Е.V. Kostenkova,
А.S. Bushnev
Publication year - 2020
Language(s) - English
Resource type - Conference proceedings
DOI - 10.33952/2542-0720-15.05.2020.29
Subject(s) - sunflower , helianthus annuus , crop , agronomy , sunflower seed , yield (engineering) , sunflower oil , biology , horticulture , mathematics , biochemistry , materials science , metallurgy
In 2019, in a single-factor experiment, two varieties of confectionery sunflower were studied in four-fold repetition: ‘SPK’ (control) and ‘Belochka’, as well as two oilseed varieties: ‘Umnik’ (control) and ‘VNIIMK 100’. The plot area is 56 m2, the registered area is 28 m2. The standing density is 30 thousand plants per ha. Climatic conditions in 2019 were generally favorable for the growth and development of sunflower plants. Autumn-winter moisture reserves (for the period September-March) amounted to 325 mm, for the growing season – 264.7. In oilseed varieties, the shortest growing season was observed for ‘VNIIMK 100’ – 80 days, for confectionery sunflower – ‘Belochka’ – 107 days. The highest height of plants of confectionery varieties (208.6 cm) was formed by the ‘SPK’; of oilseeds – ‘Umnik’ – 176.5 cm. The highest indicators of oil content of seeds and oil collection were recorded for ‘Umnik’ variety – 53.6 % and 0.97 t/ha respectively. Based on the results of environmental testing of various sunflower varieties of domestic selection, we can conclude about the potential of crop productivity in the steppe zone of the Crimea. The most adapted among oilseed sunflower varieties of domestic selection is ‘Umnik’ with a seed yield of 1.99 t/ha and an oil content of 53.6%; among confectionery varieties – ‘SPK’ variety with a yield of 2.12 t/ha and an oil content of 43.6%. Cultivating varieties in the climate conditions of 2019 was cost-effective: the level of profitability for all varieties varied from 63.7 to 93.4%.