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川东南地区高温伏旱对杂交水稻开花结实究竟有多大影响?这个地区能否发展杂交中稻?这些问题近几年来引起了人们的普遍关注,不少单位进行了大量的试验研究和调查总结工作,为川东南高温伏旱区发展杂交中稻提供了十分可贵的经验。 1、关于高温对开花结实的影响;关于高温引起水稻不实问题的研究,国内外有过不少的报导,我省不少单位近几年也作了大量试验。四川省农科院水稻所的研究指出;“汕优2号”开花当时(10:30—12:00)在自然常温(25—28℃)、
In recent years, these problems have aroused people’s attention, many units have conducted a lot of experimental research and investigation concluded that the impact of high temperature and drought on the flowering and fruiting of hybrid rice how much impact? The region can develop hybrid rice? High temperature and humidity in southeastern Sichuan hybrid rice development provides a very valuable experience. 1, on the impact of high temperature on the flowering firm; on high temperature caused false rice research, there have been many reports at home and abroad, many units in our province also made a large number of experiments in recent years. Sichuan Academy of Agricultural Sciences Rice Research pointed out; “Shanyou 2” flowering (10: 30-12: 00) in the natural room temperature (25-28 ℃),