“中甜１ 号”（Ｆ３１）属极早熟厚皮甜瓜杂交一代新组合，全生育期８５～８８ 天，果实长椭圆形，果皮黄色，上有１０ 条银白色纵沟。果肉纯白色，肉厚２．５ ｃｍ 左右，可溶性固形物含量１３．５％ ～１５．５％ ，肉质细脆爽口，单瓜重１．２ ｋｇ左右，一般产量２ ５００～３ ０００ ｋｇ／６６７ ｍ ２，耐贮运性好，抗病性强，适应性广，适于大棚、小棚和露地地膜覆盖栽培。 “Sweet 1” (F31) is a new generation of very early maturing muskmelon hybrid generation, the whole growth period of 85 to 88 days, the fruit is long oval, yellow peel, there are 10 silver vertical grooves. The pulp is pure white with a meat thickness of about 2.5 cm and a soluble solid content of 13.5% to 15.5%. The meat is fine and crisp with a weight of about 1.2 kg per single melon and a typical yield of 2 500-3 000 kg / 667 m 2, good storability, strong disease resistance, wide adaptability, suitable for greenhouse, shed and open field film mulching cultivation.