一九五七年山西省农业科学院采用山东多叶烟为母本,牛津烟为父本,进行品种间有性杂交,一九五八至一九六○年连续单株选择,育成了晋烟一号烤烟良种。山东多叶烟是由山东引进来的,具有植株高、节间短、叶片多、叶片大、产量高等优点。但是抗病力弱,易感染黑胫病,而且生育期长,在我省繁 In 1957, Shanxi Academy of Agricultural Sciences adopted the multi-leaf tobacco in Shandong as the female parent and the Oxford tobacco as the male parent for the sexual cross between cultivars. Continuous selection of single plants from 1958 to 1960 led to the promotion of Jinyan One flue-cured tobacco seeds. Shandong Tobacco is brought in by Shandong, with plant height, internode short, more leaves, leaves large, high yield advantages. However, the disease resistance is weak, susceptible to black shank, and long growth period, in our province complex