ZY Late-Maturity Head Chinese Mustard SeedpuritypurifymoisturegerminationProducitonDuation>=95%>=98%<=7%>=85%shantou,China>=1 years1, plant:Disease-resistance,late maturity,strong winterness,endurant to bolting,fonds of cool climate.Fan-shaped leaf in light green color,short and fewer outer leaf,big and substantial leaf-head, almost round, with broad and flat stalk and light green head leaf,thick leaf-head, crisp and tender, excellent for pickling and flesh stir-fry, with perfect flavor.The plant spread to be 88-93cm in width, weights 1.5-2.5kg.2, cultivaton:Sow from middle Aug. to early Oct. in Chaoshan areas,proper sowing temperature is 10-25 degree celsius,18-25 days of seedling stage,planting distance is 60-70cm,cultivate 9000-12000 plants per acre,9000-15000kg of yield per acre.