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天优578是广东省农业科学院水稻研究所用自育不育系天丰A与自选恢复系广恢578配组育成的三系杂交稻新组合,2009年7月通过国家农作物品种审定。该组合高产稳产,2007和2008年参加华南早籼组国家区试,比对照天优998分别增产7.41%和3.32%,增产均达极显著水平,适宜海南、广西南部、广东中南及西南部和福建南部等地区种植。
Tianyou 578 is a new three-line hybrid rice combination composed of Tianfeng A, a self-sterile CMS line and Guanghui 578, a self-selected restorer line, of the Rice Research Institute of Guangdong Academy of Agricultural Sciences. In July 2009, it passed the examination of national crop varieties. The combination of high yield and stable yield in 2007 and 2008 to participate in the South China early indica group national test, respectively, compared with the control Tianyou 998 increased 7.41% and 3.32%, respectively, the yield was reached a significant level, suitable for Hainan, southern Guangxi, Guangdong, southwest and southwest and Fujian and other regions of southern planting.