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本文用较丰富的资料建立了水稻光照阶段发育速度的光温模式。 1.资料 本文所用资料有两部分:(1)人工控制黑暗长度(d)的分期播种试验,播期为3月18日、5月16日、7月12日。d=24—光照长度h,d是12.50h,12.17h,11.83h,11.50h,11.17h,10.83h,10.50h,10.17h,9.83h,9.50h共10个处理,地点广州,1963年。(2)自然条件下分期播种试验。播期从1月开始到12月结束,每隔15天播1期。地点广州,1962—1963年。品种见表1。 相似文献
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Rice is one kind of crops with short length of light, its developmental rate in the photophase depends on the light-length and temperature. Since uncultivated rice was discovered in China, about 40,000 species of rice, including photo-sensitive and temperature-sensitive types, have been growing. A number of researches have been carried out by agrometeorologists in this field. The purpose of this paper is to develop a photo-temperature model based on a considerable amount of experimental data. 相似文献
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