对水稻78—1等三个高产品种合理群体结构探讨

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疏附县是南疆水稻重点产区之一。七○年以前本地白芒、黑芒稻为主裁品种,那时平均亩产在三百斤以上。后来推广中梗129,加之裁培技术不断改进,到83年全县五万亩水稻平均单产提高到47.5斤,单产和总产呈同步上升。其中老稻区的帕合太克力乡(一万二千亩水稻)农民积极种植良种,成效尤为显著。83年平均单产为805斤,比未推广良种前翻了一番。83年又从外地引进几个新品种,经试验,示范筛选出适应本县的高产品种78—l、78—2和沙交5号,这三个品种在我县均表现抗逆性强,尤以抗稻瘟病,丰产 Shufu County is one of the key rice producing areas in southern Xinjiang. 70 years ago local white mahogany, black rice for the chief referee varieties, when the average yield in more than three jin. Later in the promotion of stems 129, combined with cutting technology continues to improve, to 83 years, the county average yield of 50,000 mu of rice increased to 47.5 pounds, yield and total output showed a synchronous increase. Farmers in Phatalkoliang Township (12,000 mu of paddy rice) in the old paddy areas actively planted their seeds and the results were especially remarkable. The average yield in 83 years was 805 kg, double the figure before the promotion of high quality seeds. In 1983, it introduced several new varieties from other places. After testing and demonstrating, the high-yielding varieties 78-l, 78-2 and Shajiao-5 that fit the county were screened out. All three varieties showed strong resistance in our county, especially in our county To fight blast, high yield
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