玉米亲本冬繁的几项措施保山地区农科所（６７８０００）邵思全玉米亲本（源种）生活力较弱，自身产种量偏低，繁殖系数不高，如遇到灾年，亲本种子往往不足。为解决这一问题，我所利用本区自然优势，在低热河谷区开展玉米冬繁工作，加速玉米亲本繁殖，保证夏播制种使用。... Several measures of winter parental propagation in Maize Baoshan District Agricultural Science Institute (678000) Shaosi Quan The maize parent (source) has weak viability, low production and low multiplication coefficient. In case of disaster, the parental seed is often insufficient . In order to solve this problem, I used the natural advantages of this district to carry out winter and winter maize work in the low-heat valley area, speed up the propagation of maize parents and ensure the use of summer sowing seeds. ...