Boron sources and rates on soybean seed physiological quality and root system volume

Abstract: Soybean has shown increasing performance in terms of yield recent years. However, despite this growth, the lack quality control and knowledge about effects nutritional status plants compromised germination vigor a significant proportion seeds. The aim study was to evaluate physiological seeds root growth soybean cultivated with boron (B) sources different solubilities incorporated into soil. experimental design completely randomized 2×5 factorial arrangement, two B (boric acid ulexite) five rates (0, 2, 4, 8, 16 mg.kg-1). 100-seed weight (100SW), germination, seedling shoot length (SSL), (SRL), accelerated aging (AA), protrusion (RP), lignin content seed coat (LCSC), volume (RV) were evaluated. showed interaction increases RV, RP, SSL, SRL, 100SW, while LCSC decreased no effect, indicating reduction up 8.0 mg.kg-1, regardless source used.