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汕优3550是广东省农科院水稻所用青四矮×IR54杂交育成的恢复系3550与珍汕97A 配组成的杂交稻新组合,属弱感光型,只能在晚造种植。该组合于1986—1987年晚造连续二次参加本所杂交稻新组合表证和比较试验,1987年晚造参加省杂交稻区试,产量均名列前茅,比对照种汕优30选或汕优6号显著增产,增幅6.54—20.21%。据不完全统计:1987年晚造全省杂交稻21个区试点,汕优3550平均亩产419.10公斤,比对照种汕优30选平均亩产359.91公斤亩增59.19公斤,增产率16.48%,达极显著水
Shanyou 3550 is a new hybrid rice combination of 3550 and Zhenshan 97A with Qing 4 × IR 54 hybrid rice used by Guangdong Academy of Agricultural Sciences. It belongs to the weak sensitive type and can only be planted at late stage. The combination of late 1986-1987 for the second consecutive year to participate in this new hybrid rice combination card and comparative test made late in 1987 to participate in the provincial hybrid rice area test, the highest yield among all, than the control of Shanyou 30 or Shanyou 6 significantly increased production, an increase of 6.54-20.21%. According to incomplete statistics, in the night of 1987, the pilot project of producing 21 hybrid rice in the whole province was carried out. The average yield of Shanyou 3550 was 419.10 kg, which was 59.19 kg more than that of the control Shanyou 30, which increased by 59.19 kg and the increase rate was 16.48% Very significant water