Abstract
This research aimed to study the formation of asparagus bean yield, taking into account the influence of technological factors, including testing specific varieties based on changes in stand density. Among the primary methods used to investigate this issue were field experiments to examine the cultivation techniques and statistical analysis to assess the reliability of the results. This article presents the results of studies on sowing patterns: 70×10 cm, 70×25 cm (control), 70×40 cm, and 70×50 cm, on bush asparagus bean varieties Kafedralna (Ukraine) and U-Cha-Kontou (China) (control). Stand density significantly influenced the morphometric characteristics and productivity of the studied varieties. Increasing plant density to 143,000 plants/ha led to a significant increase (by 2-3 t/ha) in the yield of flat pods in both cultivars compared to the control (70×25 cm). The highest yield of flat pods (7.7-10.4 t/ha) was obtained for varieties at a density of 143,000 plants/ha. This is related to the optimal provision of plants with moisture, light, and nutrients at a given stand density. The Kafedralna variety generally exhibited a higher yield of flat pods than the U-Cha-Kontou variety. At lower seeding densities (29,000 plants/ ha), the beans had a greater mass (120.5-152.0 g), but their number per plant was lower. Reducing stand density to 29,000 plants/ha led to an increase in the beans’ dry matter, sugars, and vitamin C content. The Kafedralna variety had a higher content of these components under all sowing patterns. A strong correlation was found between biochemical indicators and stand density. The optimal sowing pattern for cowpeas to obtain flat pods in the Forest-Steppe zone of Ukraine can be considered 70×10 cm and 70×25 cm. The Kafedralna variety is recommended for open-field cultivation to obtain flat pods. The materials presented in the article have practical value for developing effective technologies for growing bush varieties of asparagus beans in the Forest-Steppe zone of Ukraine for vegetable production
Published Version
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