论文部分内容阅读
威优244—3和威优244—6组合,系福建农学院育种组用IR24为材料,经幅射处理选育成的姐妹恢复系244—3、244—6,与V20不育系配制成的杂优组合,经我区两年试种示范表现早熟、抗病、丰产的优点。多年来我区把杂交水稻推广工作,作为发展粮食生产的重要措施之一。自一九七七年大面积推广以后,获得粮食的大幅度增产,种植面积迅速扩大,其速度之快在良种推广中是罕见的.到一九七九年全区推广面积达68.7万多亩,其中:早稻近20万亩;中稻基本实现杂优化;晚稻普及了杂优。取得全年增产粮食一亿多斤。但是,由于目前推广的杂优当家组合,还
Weiyou 244-3 and Weiyou 244-6, Fujian Academy of Agricultural Sciences breeding group using IR24 as materials, the radiation treatment of breeding sister recovery line 244-3,244-6, formulated with the V20 sterile line Combination of miscellaneous advantages, after two years of pilot demonstration in our region early performance, disease resistance, high yield advantages. For many years, our district has popularized the work of hybrid rice as one of the important measures for developing food production. Since the promotion of a large area in 1977, it has enjoyed a substantial increase of grain output and a rapid expansion of its planting area, which is rare at the speed of seed propagation. By 1979, the total area of the whole area was 687,000 mu , Of which: nearly 20 million mu of early rice; hybrid rice basically achieve hybrid optimization; Late hybrid universal hybrid. We achieved an annual increase of more than 100 million kg of grain. However, due to the promotion of the hybrid portfolio, also