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1977年我们对杂交水稻三系开花习性的气象条件,主要是与气温、湿度的关系进行了观测试验。观测时间是在我县杂交水稻大面积繁殖制种的花期,即7月20日至8月6日,在海拔840米一季中稻区,用平行观测方法进行的。现将有关结果整理如下。 一、花期动态 据观测,在同次分蘖的有效穗中,群体花期从始花至终花所经历的天数,由于品系不同,花期长短和盛花期出现的日期也不同(见表1)。
In 1977, we studied the climatic conditions of flowering habits of three-line hybrid rice, mainly on the relationship between temperature and humidity. Observed time is in my county hybrid rice large-scale breeding flowering, that is, July 20 to August 6, 840 meters above sea level in a quarter of mid-season rice, with the parallel observation method. The relevant results are summarized below. Florescence It is observed that in the same effective tiller tillers, population flowering from the first flower to the end of the number of days, due to different strains, the flowering period and the date of full bloom appear different (see Table 1).