玉米新品种登海9号由山东省莱州市农科所育成,亲本组合“DH65232×8723”。2000年全国农作物品种委员会审定,品种审定编号为“国审玉2000007”。同年经陕西省农作物品种审定委员会认定为陕西省适宜推广种植品种。登海9号在2000年种子管理站安排品种对比试 Denghai 9, a new breed of maize, was bred by the Agricultural Science Institute of Laizhou, Shandong Province on the 9th and the parent combination was “DH65232 × 8723”. In 2000 the National Crop Variety Commission validation, variety validation number “state trial jade 2000007 ”. The same year by the Shaanxi Provincial Crop Variety Approval Committee identified as Shaanxi Province to promote the planting varieties. Denghai 9 in the 2000 seed management station arrangements for species comparison test