玉米杂交育种工作的几点体会

• 机 构: 海淀区东北旺公社科技站,
• 出 处: 农业科技资料
• 发表日期: 1978年05期
• 关键词: 杂交育种工作 育种目标 自交系 杂交种 生产基本条件 双穗率 穗行 高产组合 南繁加代 种植面积

确定育种目标要以当前为主兼顾长远确定育种目标是开展育种工作的前提,对育种工作快慢和效果关系很大,也是引种,培育新自交系和组配杂交组合的依据。一九六六年北京郊区玉米斑病大发生,我站玉米单产只有上年的三分之一,总产减收170万斤左右,许多玉米田因斑病一干到底,做了青貯喂了牛,严重影响到当年生产

Determine the breeding objectives should be based on the current priority to take into account the long-term goal of breeding is to carry out the work of breeding the premise of the breeding speed and effect of a great relationship, but also the introduction of new inbred lines and combinations of hybrid combinations based on. In 1966, there was a big corn spot in the outskirts of Beijing. Only a third of the corn yield in our station stood at one-third of the total output of corn. The total output was reduced by 1.7 million kilograms. Many corn fields were spotted with sore spots. , Seriously affecting the current production