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一九七六年,我县开展了杂交水稻不育系繁殖、杂交种配制以及杂交种大面积试种示范工作,取得了一定成绩。全县共试种杂交水稻665.8亩,其中中稻46.3亩,单产一般1000斤左右,最高的1200多斤,比当地主栽中稻品种增产二至四成;双季晚稻试种面积619.5亩,单产一般500～600斤,高的达800多斤,比当地双季晚稻品种增产一至四成。配制杂交种750.7亩,平均单产30.9斤,最高的111.4斤。繁殖不育系90.1亩,平均单产22.1斤,最高的亩产40斤。还培训了350多个技术骨干。为一九七七年大面积推广杂交水稻做好了思想准备、种子准备和技术力量的准备。经过半年的实践,我们有以下体会:
In 1976, the county carried out the breeding of hybrid rice sterile lines, preparation of hybrids and large-scale hybrid seed demonstration work has achieved some success. The county has tried a total of 665.8 acres of hybrid rice, including 46.3 acres of medium-sized rice, yield of about 1000 pounds, the highest of 1200 kilos, than the local varieties of medium-sized rice yield increased by 20% to 40%; double seasons late rice trial area of 619.5 acres, 500 ~ 600 pounds, up to 800 kilos high, more than double the late rice varieties in the region yield one into four into. Preparation of hybrids 750.7 acres, the average yield of 30.9 pounds, the highest of 111.4 pounds. Male sterile line 90.1 acres, the average yield of 22.1 pounds, the highest yield of 40 pounds. More than 350 technical backbones were also trained. In preparation for the promotion of hybrid rice in a large area in 1977, preparations for seeds, preparation of seeds and preparation of technical forces are well prepared. After six months of practice, we have the following experience: