Soybean variety evaluation – Tabulam, NSW 2018–19

Abstract

Key findings • The two new lines T171A-2 (2.74 t/ha) and NK94B-25 (2.51 t/ha) had yields that were statistically similar to the industry standard variety Richmond[PBR] (2.28 t/ha). • Richmond[PBR] had a grain protein concentration of 45.2% on a dry matter (DM) basis, which was significantly higher than the varieties T171A-2 (43.0 %) and NK94B-25 (43.4%). • There was significant difference in seed size between varieties. Richmond[PBR] produced the largest seed size (25.7 g/100 seeds), followed by T171A-2 (23.4 g/100 seeds) and NK94B-25 (21.3 g/100 seeds). • No significant difference in grain oil concentration, plant height, and lodging score was observed between the three lines. • Downy mildew, a leaf disease, was identified in the experiment, but not at an economically significant level. • Adaptation of the two unreleased lines to the North Coast region of New South Wales (NSW) was validated through this experiment.