“汕优桂44”是广西壮族自治区农科院用“珍汕97A”和恢复系“桂44[IR36×(泰引1号×IR24)]”配制而成的杂交晚稻新组合.该组合具有生长快、群体大、穗大粒多、高产稳产、增产潜力大、米质优等特点.一般亩产550～600公斤,高者达750公斤,比对照种“汕优桂33”增产20～25.8%,增产效果达极显著.1987年晚季在华南三省已推广种植25万亩. “Shanyougui 44” is a new late-season hybrid late rice combination formulated by Guangxi Academy of Agricultural Sciences of the People’s Republic of China with “Zhenshan 97A” and restorer line “Gui 44 [IR36 × (Taiyin No.1 × IR24)]” Growing rapidly, large population, large spikelets, high and stable yield, large yield potential, excellent quality of rice, etc. Generally, the output per mu is 550-600 kg and the highest is 750 kg, which is 20-25.8% higher than the control “Shanyougui 33” , The effect of increasing yield was extremely significant. In the late autumn of 1987, 25 million mu were planted in three southern provinces of South China.