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近几年我区大白菜种植面积迅速扩大,1983年仅张掖县城郊种植面积即达一万二千多亩。大白菜在我区已发展为商品生产。但种籽生产不足,阻碍着种植面积的继续扩大,农户生产用种仍以传统留种法小面积繁殖。即头年种菜窖藏,来年整株栽种。此法繁殖周期长,成本高,冬季贮藏困难,春季栽培软腐病死亡严重。故繁殖系数小。为此,我所用白菜腋芽萘乙酸浸沾栽培和种籽萌芽后低温处理两种繁殖法进行了留种试验。试验方法及结果一、腋芽萘乙酸浸沾栽培繁殖: 1982年秋我们在大白菜种植面积较大的党寨公社,选了几棵成熟早、较抗病、包心
In recent years, the planting area of Chinese cabbage has rapidly expanded. In 1983, only the cultivated area in the suburbs of Zhangye County reached 12,000 mu. Chinese cabbage has been developed into a commodity production in our district. However, lack of seed production hinders the continuous expansion of planting area, and the farmer households still use a small area for traditional breeding methods. The first year of planting cellars, planting the whole year next year. This method has a long reproductive cycle, high cost, difficult storage in winter, and serious death of soft rot cultivated in spring. So the reproductive coefficient is small. To this end, I used cabbage axillary bud naphthalene leaching cultivation and seed germination after low temperature treatment of two kinds of breeding method for seedling test. Test methods and results A, axillary buds naphthalene leaching dip Cultivation: In the autumn of 1982, we planted a large area in the Chinese cabbage commune, selected a few mature early, more disease-resistant, heart