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“单繁36”系晚熟晚粳新品系,由青浦县农科所选用嘉兴农科所后季稻组合(A23×709)×66209-1的F_1代种子,于1977年采用花粉培养后选育而成。1981～83三年区试,平均亩产比对照农虎6号增产12.6％,将进入鉴定阶段。上海市农科院作物所和青浦县农科所协作,应用PGV-36型人工气候箱对“单繁36”在花粉母细胞减数分裂期、破口期、开花期、灌浆结实期进行了耐冷性鉴定。一、材料和方法供试新品系为“单繁36”、农虎6号(嘉兴地区农科所供种)。分设减数分裂期、破口期,开花期和灌浆期冷温处理,以全期自然温度为对照,农虎6号作为品种对照。6月16日播种水育秧,7月20日移入内径21厘米、深25厘米的盆钵,每品种种11盆,
“Danfan 36” was a late-maturing late Japonica rice line. F_1 seeds from late rice combination (A23 × 709) × 66209-1 of Jiaxing Agricultural Science Institute of Qingpu County were selected by Qingpu County in 1977 and pollenized after breeding in 1977 And into. 1981 ~ 83 three-year trial, the average yield per mu than the control Nonghu 6 increased 12.6%, will enter the identification stage. Shanghai Academy of Agricultural Sciences Crops and Qingpu County Institute of Agricultural Cooperatives, the application of PGV-36-type artificial climate chamber on the “Monocan 36” pollen mother cell meiosis, breaking, flowering, filling of the grain-filling period Cold tolerance identification. A, materials and methods for the test of new lines for the “single Fan 36”, Nonghu 6 (Jiaxing Prefecture for the kinds of farming). Divided into meiosis, breach, flowering and filling temperature cold treatment, the natural temperature throughout the period as a control, Nonghu 6 as a species control. June 16 sowing watering seedlings, July 20 into the diameter 21 cm, 25 cm deep bowl, each species of 11 pots,