Abstract：‘Xialvfei’is a new heat tolerant pakchio bred by crossing male sterile line of environment-sensitive XBm107-2 with inbred line S99-1. It is tolerant to heat and can grow quickly. Its growing period is about 30 days. It is about 25 cm in plant height, 22 cm in plant spread. The plant type is vertical. It is a good commodity with bright green leaf, reseda petiole and little cellulose. Its yield is about 25.5 t·hm-2 in Fujian. It has stronger resistance to downy mildew, black spot, soft rot than‘shanxibai’. It is suitable to be cultivated in plain areas of Fujian Province for all seasons and in mountainous areas only in summer and autumn.
