“常优９９－１”系常熟市农科所１９９８年（Ａ１／Ｃ６８）配置育成三系杂交粳稻新组合。１９９９年参加苏州市杂粳协作联鉴，并小面积示范受到各方面领导专家好评。２０００年参加江苏省单晚杂粳组区试及苏、锡、常三市品比试验，并在上述三市及上海、浙江、湖北等省市小面 “Changyou 99-1” Department of Changshu Agricultural Science Institute of 1998 (A1 / C68) configuration breed new three-line Japonica hybrid rice. Participated in Suzhou City in 1999 hybrid magazine, and small-scale demonstration by all aspects of leading experts. In 2000, he took part in the trial of single late hybrid japonica rice in Jiangsu Province and the ratio test of the three cities of Jiangsu, Wuxi and Changzhou. In the above three cities and small cities and towns in Shanghai, Zhejiang and Hubei