Seven early-maturing autumn varieties of Chinese cabbage from different regions were compared by open cultivation.The results showed that Xinzao 56 had the highest yield of 4 934.56 kg per 666.7m2 and then the Hualiangxiaqiu of 3 829.07 kg.They had strong disease resistance and their growth periods were 62 and 68 days respectively,so they were fit for local cultivation with early maturing in autumn.Julongzaoqiu and Weibai 6 had the highest yield per plant,but they had serious black rot disease occurrence wh...