（1Zhangye City Institute of Agricultural Sciences of Gansu Province，Zhangye 734000，Gansu，China；2Zhangye City Ruizhen Seeds Co.，LTD，Zhangye 734000，Gansu，China）
Abstract：‘Hongrui No.1’ is a new tomato F1 Hybrid developed by crossing RZHT257 as female parent and RZHT006 as male parent. This variety is of unlimited growth type. It is of early maturity. It has strong growth vigor. Its leaf is green in color and big in size. The space between inflorescence is 2-3 leaf blades. Its fruit is of round shape. The matured fruit is red in color with hard pulp and has no green shoulder. It has multiple ventricular and good commercial characteristics. The average single fruit weight is 182.7 g. Its shelf life is 8-10 days. The soluble solid content is 5.7%. Its resistance to powdery mildew，leaf mold and early blight is stronger than that of the contrast‘ Zhongshu No. 4’. It is suitable for open and protected field cultivation in Gansu，Shandong，Hebei Provinces. Its average yield is 85.9 t·hm-2.
