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本文应用早晚季稻共77个品种采取人工和自然光长共15级处理,除1981年中季种植外,于1980～1987年早晚两季种植合共进行8年17季试验。结果表明:品种对日长反应实际存在有早稻的无感与弱感,晚稻的强感与极强感共4个类型,按品种对光温联应可分为无感光、弱到中感温,弱感光、中感温,强感光、中感温和极强感光、中到强感温四个类型。同时建立了各代表类型品种最优回归方程式,极强感光型具有严格的出穗临界日长,超过此日长不能抽穗,强感光型品种则随着叶龄增大对日长要求放宽。
In this paper, a total of 77 varieties of early and late rice were treated with artificial and natural light for a total of 15 treatments except planting in the middle of 1981. The results showed that there were actually four types of strong and very strong sense of late rice in response to Japanese long-term reaction, which could be divided into light-sensitive and weak-medium temperature-sensitive , Weak sense of light, in the sense of temperature, strong sense of light, the feeling of a strong sense of sensitivity, the temperature to the strong sense of the four types. At the same time, the optimal regression equation of each representative type was established. The extremely sensitive type had a strict critical heading date. Exceeding this date, the heading date could not be obtained.