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金优990是安顺市农业科学院水稻研究所用安恢990与金23A配组育成的高产早熟三系杂交水稻新组合,经贵州省2011—2012年2年区域试验鉴定,金优990平均单产9 886.8kg/hm2,比对照香早优2017增产8.4%;生产试验平均单产7 763.7kg/hm2,比对照香早优2017平均增产6.73%。稻瘟病抗性鉴定为中感,抗冷性鉴定为强,明显优于对照香早优2017。2014年7月通过贵州省农作物品种审定委员会审定(黔审稻2014009号),适宜贵州中、高海拔稻区种植。
Jinyou 990 is a new combination of high-yielding early-maturing three-line hybrid rice cultivated by Anshu 990 and Jin 23A with Rice Research Institute of Anshun Academy of Agricultural Sciences. It has been identified by the regional experiment in 2011-2012 in Guizhou Province. The average yield of Jinyou 990 is 9 886.8 kg / hm2, which was 8.4% higher than the control Xiangzaoyou 2017; the average yield per plant in the production experiment was 7763.7kg / hm2, which was 6.73% higher than that of the control Xiangzaoyou 2017. The resistance of rice blast was identified as moderate, and the resistance to cold was identified as strong, which is obviously better than the control Xiang Zao you 2017. In July 2014, it was approved by Guizhou Province Crop Variety Approval Committee (Qiaoshaoshu 2014009) Grow rice planting area.