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近年来,我社大麦黄花叶病发病较重,产量显著下降。1978年秋,我场从市农科院引进耐病大麦新品系“77—130”种子34斤,78、79两年进行稀播繁殖。到1979年,我场和四个保种队共种植135.95亩,80年夏,收获种子55914斤,可供全社80年秋播大麦面积的50%。在试种过程中有以下一些体会。(一)减少播种量,提高繁殖系数。78年种植“77—130”大麦5.8亩,每亩用种5.8斤,总产3091斤,平均亩产533斤,繁殖系数为92。79年秋播扩大种植至44.4亩,平均每亩用种8斤,亩产482.4斤,繁殖系数为60.3。同年又进行了不同播种量与繁殖系数的关系试验,结果见下表。
In recent years, our company barley yellow mosaic disease incidence, significantly reduced production. The autumn of 1978, my field from the Academy of Agricultural Sciences introduced new lines of disease-resistant barley “77-130” seeds 34 pounds, 78,79 two years of sparse breeding. By 1979, our field and four conservation seedlings planted a total of 135.95 mu of land. In the summer of 80 years, 55,914 jin of harvested seeds were harvested for 50% of the barley area sown in autumn in 1980. In the trial process has the following experience. (A) reduce seeding, improve the breeding coefficient. 78 years planted “77-130” barley 5.8 acres, 5.8 kg per acre with a total output of 3091 kg, an average of 533 kg per mu, breeding coefficient of 92.79 years of planting to 44.4 acres of autumn planting, with an average of 8 acres per mu Kg, 482.4 kg per mu, breeding coefficient of 60.3. In the same year, different seeding rates and propagation coefficients were tested. The results are shown in the following table.