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选育和利用农作物优良品种,对提高农作物产量,发展农业生产具有重要作用。据丹东市农科所对25年的玉米区域试验结果分析,除去其它增产因素的作用,良种的净增产作用为37％;西北农学院对小麦等自交作物测定,种子的净增产作用为42％。建国以来,我省通过群众性评选良种和对农家品种整理、系统选育、杂交育种、杂种优势利用,不断为生产提供
Breeding and utilization of fine varieties of crops play an important role in raising crop yield and developing agricultural production. According to the analysis of 25-year maize regional trial results by Dandong Agricultural Science Institute, 37% of the net yield-enhancing effect of the improved seeds was removed except for the other factors for increasing yield. The NWS production of wheat and other inbred lines was 42% %. Since the founding of the People’s Republic of China, the province has selected the finest species for mass production and systematically sorted and cultivated farm families, systematically breeding, crossbred breeding and heterosis utilization, and continuously provided for the production