PHYSIOLOGICAL QUALITY OF PROCESSED, REPROCESSED, AND STORED SORGHUM SEEDS: IMPACT OF A DENSIMETRIC TABLE

ABSTRACT Sorghum ( Sorghum bicolor L. Moench) is a crop of paramount importance for Brazil, used in human and animal food. Considering the reduced number of studies on the influence of using a densimetric table in seed processing and its respective reprocessing to the equipment, this study aimed to evaluate the physiological quality of processed sorghum seeds reprocessed in a densimetric table and stored for three months. The treatments consisted of four collection points in the terminal part of the densimetric table, representing the processing material: upper part (P1), upper middle part (P2), middle part (P3), and lower part (D). Subsequently, the samples that were reprocessed in the table came from P3 and were divided into the upper part, which was followed to bagging (P3R1), and the lower part (P3R2), which followed for disposal, totaling six treatments. Storage was performed in a refrigerated environment, using a completely randomized design, with the means being compared by Tukey’s test at 5%. We concluded that the reprocessing of sorghum seeds in the densimetric table can improve the physical quality of a lot due to its standardization at the end of the stages, contributing to the improvement of the physiological quality and use of the material that would be discarded. The equipment performance allows the removal of seed fractions with lower apparent specific mass and promotes positive stratifications in the physiological quality of sorghum seed lots.

摘要：高粱（Sorghum bicolor L. Moench）作为巴西至关重要的作物，广泛应用于人类和动物食品。鉴于关于使用密度计表在种子加工及其相应再处理对设备影响的研究数量有限，本研究旨在评估经密度计表再处理的加工高粱种子在储存三个月后的生理质量。实验处理包括密度计表终端部分的四个收集点，代表加工材料：上部（P1）、上部中间部分（P2）、中部（P3）和下部（D）。随后，再处理于表中的样本来自P3，并分为上部（P3R1），随后进行包装，以及下部（P3R2），随后进行废弃，共计六种处理。储存于冷藏环境中，采用完全随机设计，通过Tukey检验在5%水平上比较均值。我们得出结论，在密度计表中再处理高粱种子可以因其标准化处理而提高种子批次的质量，有助于提升被废弃材料的生理质量与利用率。设备性能允许去除具有较低表观密度的种子部分，并促进高粱种子批次生理质量的正向分层。