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寒露风每年都不同程度地影响着晚稻的生产,是晚稻不能稳产的重要原因。为减少寒露风造成的损失,多年来我们在提早齐穗期方面做了许多工作,虽然取得了一些成绩,但也带来了夏收夏种的季节安排、早晚造品种布局、晚稻秧龄期长短等矛盾的激化。为此,极需明确我县晚稻大面积栽培各品种对后期低温的耐受能力、寒露风危害指标和安全齐穗期,为今后的水稻高产稳产提供科学依据。我们自1979—1981年在附城公社大联大队进行了试验工作。选用“青二矮”、“广二_(104)”、“桂朝2号”和“V优6号”作为观察材料。
Cold dew wind affects the production of late rice to varying degrees every year, which is an important reason that late rice can not be stable. In order to reduce the loss caused by cold and windy weather, we have done a lot of work in early heading stage. Although we have achieved some successes, we have also brought seasonal arrangements for summer harvest summer and evening planting varieties and the seedling age of late rice. The intensification of conflicts. Therefore, it is very necessary to clarify the tolerance of late-stage low-temperature cultivars, late-stage low temperature tolerance, cold dew wind hazard index and safe heading stage in large-scale cultivation of late rice in our county to provide a scientific basis for the high and stable yield of rice in the future. From 1979 to 1981, we carried out experimental work in the WWII Brigade of the Fucheng Commune. Selected “green two short”, “wide two _ (104)”, “Gui Chau 2” and “V excellent 6” as the observation material.