当前,我省稻田三熟制迅速发展,如何合理利用新育和引进的优良品种,是生产上急待解决的问题之一。研究这些品种的温光反应的基本特性,对合理安排茬口,确定适宜播期,以及制定其他有关的丰产栽培措施,将能提供必要的根据。我们在1973、74年(见湖北农业科学74年第二期75年第二、三期)工作基础上,1975年选定14个品种,其中二九青、华矮15、广陆矮4号、竹莲矮、温革,湘矮早8号是继续深入74年试验。2057和湘矮早9号分别是湖北农科所和湖南农科院改造“691”(国际8号)的 At present, the rapid development of rice-field three-cropping system in our province makes it one of the most urgent problems to be solved in production how to make rational use of fine varieties newly introduced and introduced. Studying the basic characteristics of the temperature and light response of these varieties will provide the necessary basis for the rational arrangement of stubble crops, the establishment of suitable sowing dates, and the development of other relevant high-yielding cultivation measures. Based on our work in 1973 and 74 (see the Second and Third Periods of Agricultural Sciences in Hubei in 1975 and the Second and Third Periods in 75 Years), we selected 14 varieties in 1975, of which 292 were Green, 15 were short and 4 were Guanglu , Bamboo lotus short, Wen Ge, Xiang short morning as 8 is to continue in-depth 74-year trial. 2057 and Xiang short morning 9 are Hubei Agricultural Science Institute and Hunan Academy of Agricultural Sciences, “691” (International 8)