SOYBEAN OIL YIELD FOR BIODIESEL AT DIFFERENT SOWING DATES IN THE TOCANTINS CERRADO
DOI:
https://doi.org/10.66104/vqdt3q53Keywords:
biodiesel, sowing date, oil contente; Glycine maxAbstract
The State of Tocantins accounts for 70% of all biodiesel produced in Brazil’s Northern region, with soybean being the most commonly used raw material for this purpose. Biodiesel production from soybeans requires cultivars with a high potential for oil yield, a factor influenced by genetic variability, climatic conditions, and planting time. Therefore, due to the scarcity of information on the performance of soybean cultivars at different planting times for biodiesel production, three experiments were conducted in the 2023/24 growing season in the central region of Tocantins State, represented by three planting dates (November 17, 2023; December 19, 2023; and January 6, 2024). Each trial followed a randomized complete block design, with three replications and 12 cultivars. Oil content (%) and oil yield (kg/ha) were evaluated. Planting time and climatic conditions—especially rainfall distribution and temperature—significantly influenced oil yield. Cultivar NEO 820 IPRO (1.012 kg/ha-1) had the highest oil yield in the traditional planting window, while DM 82i78 IPRO (1.041 kg/há-1) performed best in the later planting window. The variable performance among cultivars confirms the significance of the planting time × cultivar interaction and highlights the importance of climatic zoning and the selection of genotypes adapted to each planting window
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Copyright (c) 2026 Dr. Celso Hackenhaar, Dr. Joênes Mucci Peluzio , Msc. Neusa Hackenhaar, Dra. Alessandra Maria de Lima Naoe, Dra. Maria Dilma de Lima, Msc. Douglas Martins da Costa , Msc Giani Raquel dos Santos Resplandes Gouvêa , Msc. Domingos Bonfim Ribeiro dos Santos
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