Abstract: Cuiyu is a middle-maturing, disease resistant, high-yielding, and high quality new cultivar of
watermelon bred by using tetrap loid cultivar SB-1 asmale parent and RB-5 as female parent. It ismiddle-late
cultivarwith a growth period of 105 days. The fruit is spherical in shape and fruit shape index is 1.01. The
fruit peel is light green mixed with black stripe in colour and is 1. 4 cm in thickness. Its storage p roperty is
good. The mass of a single fruit is 8 - 10 kg and the biggest one is above 15 kg. The highest yield is 67.5 t/
hm² or more. It is highly resistant to anthrax of watermelon (Colletotrichum lagenarium ) , watermelon virus
disease, and moderately resistant to watermelon wilt disease. Its flesh is red in colour, succulent, crisp, less
fibber content, the seedless p roperty is stable, and no hollow. The content of central soluble solids is 12.5%.
The peel is thin, the edible rate is high, the commercial p roperty is good and the quality is high.

Key words: Seedlesswatermelon, Disease resistance, High quality, High yield, Keep ing and transporting quality