美国科学家利用野生菜豆和栽培菜豆的抗生基因,成功地培育出抗55个锈菌生理小种的菜豆新品系53个,其中适于新鲜上市的矮生食荚菜豆新品系12个,适于加工冷冻和罐头生产的绿色食荚或黄荚种菜豆新品系30个,藏青豆新品系7个,斑豆新品系2个,大北方菜豆新品系2个。更值得 American scientists used wild bean and cultivated bean anti-biotic genes to successfully cultivate 53 new bean varieties resistant to 55 rusty race races, of which 12 were suitable for freshly introduced dwarf bean varieties. These are suitable for processing frozen And 30 new varieties of green food pods or canola produced from cans, 7 new strains of preserved green beans, 2 new bean varieties of pinto bean and 2 new bean varieties of big northern bean. More worth it