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株1S原原种海南冬繁采用割蔸后移蔸再生繁殖,产量较高,杂株特别是高温敏株可充分表现,有充足除杂时间,生产的种子纯度好。操作上注意选择好繁殖基地,确定适宜的播期,头茬稻适当密植,少量施肥,浅水灌溉,适时割蔸移栽;再生稻适当稀植,适当喷施多效唑,重施肥,巧灌水,适当拔苞,重点防治纹枯病、稻飞虱、白叶枯病和细条病;除杂工作专人负责,严格剔除高温敏株和普通杂株。
The original strain of strain 1S, Hainan, was used to reproduce and reproduce after transplanting. The yield was high, and the heterosis, especially the high temperature sensitive strain, could be fully demonstrated. There was enough time for removing impurities and the purity of the seeds produced was good. Operation should pay attention to choose a good breeding base to determine the appropriate sowing date, the first crop of rice appropriate close planting, a small amount of fertilization, shallow water irrigation, timely cut 蔸 transplanting; ragweed appropriate sparse planting, appropriate spraying paclobutrazone, fertilization, clever irrigation, appropriate Pull bracts, focus on the prevention and control of sheath blight, planthoppers, bacterial blight and thin strip disease; impurity cleaning work person in charge, strict exclusion of high temperature sensitive strains and common hybrids.