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一、品种来源 由本所选育的优质稻新品种“原晚39”系以水稻优质突变系优辐1号为母本,以IR24为父本,有性杂交F_1代杂种利用~(60)Co,γ—射线250格瑞（GY）辐照,经多代系谱选育而成,1988年定型。1989、1990年分别参加本所新品系预试及品比试验,两年平均亩产446.7公斤,比对照78130增产7.26％。由于米质优、产量较高、表现突出,1991年进入全省水稻良种区试。
First, the source of varieties The new high-quality rice variety “Oryzae 39” selected by our institute was the female parent of Yudou No.1, a mutant with high quality, and parent with IR24. , γ-ray 250 Gary (GY) radiation, after many generations of pedigree breeding, stereotypes in 1988. 1989 and 1990, respectively, to participate in our new product line pre-test and product ratio test, two-year average yield 446.7 kilograms, compared with the control 78130 yield 7.26%. Due to the quality of rice, high yield, outstanding performance, 1991 into the province of rice varieties test.