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1975年,我们从推广种湘东水稻种植田里,选出了高秆大穗的天然变异植株。它比湘东稻株高5寸,穗粒数多60粒。1976年春,将这一变异株的种子请贵州省农科院农业物理组,以1.5万伦琴处理干种子。将处理过的种子播种在下坝试验田,当年选出矮秆大穗的一个植株,单独脱粒留种。1977年将这株种子单独育苗,单株栽插,结果是株间差别不大,表现较整齐,共收得种子3.5斤,1978年4月22日将这批种子播种育苗,秧龄38天,采用6×6寸的行株距,每穴栽
In 1975, we selected natural mutant plants with tall stalks and big spikes from the popularization planted paddy field in eastern Hunan. It is 5 inches higher than the eastern rice plant, 60 grains per spike. In the spring of 1976, the seeds of this mutant were invited to the Agricultural Physics Unit of Guizhou Academy of Agricultural Sciences for dry seed treatment of 15,000 Roentgen. The treated seeds were sown in Xiaba experimental field, then select a dwarf big spike plant, separate threshing to stay seed. In 1977 the seed of this seed alone nursery, planting single plant, the result is not much difference between strains, performed neatly, a total of 3.5 kg of seeds received, April 22, 1978 seed sowing these seeds, seedling age 38 days, Using 6 × 6 inch row spacing, planted per hole