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登海9号是山东登海种业股份有限公司于1995年育成的中晚熟玉米杂交种。2000年通过国家和吉林省审定,2001年通过山东省审定,是国家授权的保护品种。
Denghai 9 is a middle-late maturing corn hybrid bred by Shandong Denghai Seed Co., Ltd. in 1995. Approved by the state and Jilin Province in 2000 and Shandong Province in 2001, it was approved by the state as a protected species.