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株1S原原种本地规模化生产采用割蔸后坐蔸再生冷灌繁殖,繁殖基地选择在株1S原种繁殖基地内,便于隔离和温度调控。栽培上注意培育壮秧、匀秧;单本移栽,密度16.7 cm×16.7 cm;头茬肥轻、再生肥重;齐穗后2~3 d割蔸,留桩高度8 cm,切口平整;科学管水,培育健壮的茎、根;全程加强预防以纹枯病和稻飞虱为主的病虫防治;头茬稻每蔸成穗6~7穗,每个穗生成2~3个再生穗;割蔸后7 d开始冷灌,持续17~18 d,至90%再生苗剑叶全展时停止冷灌;冷灌深度18~22 cm,调整水流量和冷灌时间,保持出水口日平均温度在23.5℃左右。在头茬育性敏感期创造高温株表达环境,严格剔除高温敏株和普通杂株。繁殖产量可达3t/hm~2以上。
Strain 1S strain of the original large-scale local production of cut 蔸 sit 蔸 regenerative cold irrigation, breeding base selection in the strain 1S breeding base species, easy isolation and temperature control. Cultivation of strong seedlings, uniform seedlings; single transplanting, the density of 16.7 cm × 16.7 cm; the first stubble fat, heavy fertilizer; 2 ~ 3 d after heading cut, leaving the pile height of 8 cm, incision formation; Scientific management of water, nurturing robust stems and roots; to strengthen the prevention and control of sheath blight and planthopper pest mainly throughout the prevention and control; the first stubble paddy ear per tuber ear 6 to 7, each ear to generate 2 to 3 regeneration Spike irrigation was started 7 days after cuttings, and continued for 17-18 days. When cold water was supplied to 90% of the regenerated leaves, the cold irrigation was stopped when the flag leaves were fully expanded. The depth of cold irrigation was 18-22 cm, and the water flow and cold irrigation time were adjusted to maintain the outlet The average daily temperature is about 23.5 ℃. In the first stage of fertility sensitive period to create high temperature strains expression environment, strictly eliminate high temperature sensitive strains and common hybrids. Breeding yield up to 3t / hm ~ 2 or more.