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海农６号为由国外引进的杂种一代系选自交系ＷＡ－３和抗病杂种系选自交系８５－１０－２杂交而成的西瓜杂种一代，对西瓜的枯萎病和炭疽病有较强的抗性，果实椭圆形具花条纹，规整美观，瓜瓤红色，果实中心可溶性固形物含量１１％～１２％，边部９％～１０％，皮厚１ｃｍ，单瓜重１０ｋｇ左右，商品瓜率高，每６６７ｍ２产量４０００～５０００ｋｇ，目前在北京、河北、河南、山东、山西、湖南、湖北、内蒙古、辽宁、吉林、黑龙江等地引种试种，大面积示范累计达１３３３ｈｍ２。
Hai Nong 6 is a hybrid generation of watermelon derived from a cross between WA-3 and a resistant hybrid selected from cross-line 85-10-2. Strong resistance, the fruit oval with flower stripes, structured appearance, melon red, fruit center soluble solids content of 11% to 12%, the edge of 9% to 10%, skin thickness 1cm, single melon weight about 10kg, The output of melon is high, yielding 4000-5000kg per 667m2. At present, a total area of 1333hm2 has been planted in Beijing, Hebei, Henan, Shandong, Shanxi, Hunan, Hubei, Inner Mongolia, Liaoning, Jilin and Heilongjiang.