Abstract: In order to evaluate the production and utilization value of the new national approved soybean[Glycine max (L.) Merr.] variety Zhudou 19, and to provide theoretical reference and technical support for its popularization in the Yangtze River Basin, the high yield, stability, adaptability, disease resistance and quality of Zhudou 19 were analyzed by LSD, high stability coefficient method, Francis-Kannenberg genotype grouping method and adaptive parameter method based on the multi-year and multi-point test data of Zhudou 19. The results showed that in the regional trials of 2014 and 2015, the average yields of Zhudou 19 were 3 094.5 kg/hm² and 3 130.5 kg/hm² respectively, which were 8.5% and 16.2% higher than that of the control variety Zhongdou No.8(P<0.01), reaching a very significant (P<0.01) level; the high stability coefficients were 96.72% and 90.63% respectively, which showed a good stable yield. Through identification by artificial inoculation with the epidemic strains SC3 and SC7 of soybean mosaic virus (SMV), the disease indexes of Zhudou 19 were 7%-33% and 8%-37% respectively, showing comprehensive resistance to soybean mosaic virus disease. Zhudou 19 had a high crude protein content, with an average crude protein content of 45.65% in three consecutive years of detection, and was classied as a high-protein soybean variety. Zhudou 19 was suitable for promotion as a high-yield variety in the Yangtze River Basin, and could also be used as a special high-protein soybean for processing and production.

Key words: soybean[Glycine max (L.) Merr.], Zhudou 19, high protein, high yield, stability, adaptability, disease resistance, quality