豫西瓜7号（原名开杂9号）是开封市农林科学研究所选育的早熟杂优新品种。具有优质、高产、抗病、耐贮运等特点，一般单产3000～3500km／667m2，较对照品种郑杂5号增产17．8％。果实中心可溶性固形物含量10．8％，较对照高0．7％。于1998年4月通过河南省农作物品种审定委员会审定并命名。该品种适宜于土层深厚的砂质土壤栽种。 Yu watermelon 7 (formerly known as open miscellaneous 9) Kaifeng City Institute of Agriculture and Forestry breeder new varieties of precocious hybrid. With high quality, high yield, disease resistance, storage and transportation and other characteristics, the general yield 3000 ~ 3500km / 667m2, compared with the control variety Zhengza 5 17.8% increase. The fruit center soluble solids content of 10.8%, 0.7% higher than the control. In April 1998 by the Henan Provincial Crop Variety Approval Committee and named. The variety is suitable for planting deep sandy soil.