水稻杂交育种后代选育的一种新方法——一平方寸直播法

• 机 构: 绍兴地区农科所,
• 出 处: 科技简报
• 发表日期: 1976年11期
• 关键词: 杂交育种 育种目标 发芽种子 晚稻 占地面积 浆糊 种植方式 后代 品系 一粒

在水稻杂交育种中处理杂交二、三、四代等低世代时,我们试用了一平方寸直播的方法,收到了较好的效果,在晚稻育种中,选得了一些符合育种目标的品系。做法是:直接在整平的田块上,按1平方寸距离播入一粒发芽种子;或者先在室内用浆糊把发芽种子粘在划好1平方寸格子的纸上,然后把纸铺在整平的田里。直到收获。用一平方寸直播法,每株的占地面积为1寸~2,而一般的种植方式为5×3(寸),即每株

When dealing with the second, third and fourth generations of lower generation hybrids in hybrid rice breeding in rice, we tested a square inch direct seeding method and received good results. In the late rice breeding, we selected some lines that meet the breeding objectives. Practice is: directly in the flat field, according to a square inch distance broadcast a germinating seeds; or first in the indoor paste the germinating seeds glued to 1 square square grid of paper, and then the paper shop In a flat field. Until harvest. With a square inch direct seeding method, each plant covers an area of ​​1 inch to 2, and the general planting method is 5 × 3 (inch), that is, each plant