The size and quality of winter oilseed rape seed yield depending on the cultivar type

Abstract

The aim of the research was to evaluate the size and quality of winter rape seed yield depending on the cultivar type. The field experiment was carried out using the random block method and was established in the Podkarpackie Agricultural Advisory Center in Boguchwała. Weather conditions varied in the research years and had an impact on the yield of winter oilseed rape. In 2017, the seed yield was 4.18 t ha^–1, while in 2018 and 2019 it was lower by 0.66 and 0.23 t ha^–1, respectively. The individual cultivars differed significantly in the yield components. ‘Kuga F₁’ cultivar yielded the highest and ‘ES Valegro’ and ‘Mentor F₁’ cultivars significantly lower. The obtained difference was 0.39 and 0.54 t ha^–1, respectively. The clubroot-resistant cultivar ‘DK Platinium F₁’ surpassed the seed yield of the ‘Mentor F₁’. The highest content of total protein was found in the seeds of ‘Visby F₁’ variety and significantly lower in the ‘ES Valegro’ variety. The content of crude fat in seeds was not diversified. The highest protein yield was produced by the ‘DK Platinium F₁’ variety, and significantly smaller ones by ‘ES Valegro’, ‘Birdy’ and ‘Mentor F₁’. In addition, the ‘Visby F₁’ and ‘Kuga F₁’ varieties had a higher total protein yield compared to the ‘ES Valegro’ and ‘Mentor F1’ varieties. Significantly higher fat yields were obtained by the cultivar ‘Kuga F₁’ and ‘DK Platinium F₁’ in relation to the cultivar ‘Mentor F₁’. The obtained differences amounted to 0.24 and 0.18 t ha^–1, respectively. The results of the conducted research showed significant differences in the size and quality of the seed yield in individual types of winter oilseed rape.