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目前国内冬小麦繁殖方法,主要是一年一次就地小面积精量或半精量繁殖,一般繁殖系数为100倍左右。利用地热大棚加代,异地春繁精量播种,本地大面积稀播繁殖,用30公斤麦种,两年收获种子47.5万公斤,提高繁殖系数1.5万倍,是一条快速高倍繁殖良种的成功途径。一、基本作法 1986年11月26日从北京本所繁殖的北京837麦田隔垅挖掘麦苗0.5亩,移栽到固安县独流乡地热大棚2.4亩,1987年2月28日收获种子60公斤。3月10日在青海省西宁市西北高原生物所,以每亩2公斤播种量繁殖30亩,8月31日收获,总产8025公斤,平均亩产267.5公斤。9月20日前回固安,香河两县,以每亩5公斤播种量繁殖1.506亩,其固安县1.436亩、香河县70亩。同时,在北京顺义县用1986～87年自繁种子以每亩2.5公斤
At present, the domestic winter wheat breeding methods are mainly small-area small-area precision or semi-fine breeding once a year, with the general breeding coefficient of about 100 times. The use of geothermal greenhouse plus generation, fine spring planting precision off-site, the local large-scale thin-seeding breeding, with 30 kilograms of wheat, two seasons, harvesting 450,000 kilograms of seeds, raising the breeding factor of 15,000 times, is a successful breeding of high-yielding success way. First, the basic approach On November 26, 1986 from Beijing, Beijing breeder breed 837 wheat barley excavation 0.5 acres of wheat, transplanting to Gu’an County Duliu Township Geothermal greenhouse 2.4 acres, February 28, 1987 harvest of seeds 60 kg. March 10 in Xining, Qinghai Province, Northwest Plateau Institute of Biology, 2 kg per acre sowing breeding 30 acres, August 31 harvest, the total output of 8025 kilograms, an average of 267.5 kilograms per mu. September 20 before returning Gu’an, Xianghe two counties, 5 kg per acre sowing breeding 1.506 acres, 1.436 acres of its Guan County, Xianghe County, 70 acres. At the same time, Shunyi County, Beijing with 1986 to 87 years of free-breeding seeds to 2.5 kg per mu