解放以来,我们在糜子育种工作上,曾采用过地方品种鉴定,引种和系统选种等方法。看来引种受自然条件的限制较大。如由黑龙江、内蒙古等地引进的品种,一般表现生长弱、早熟、丰产性不强;由甘肃、青海引进的品种,表现成熟晚、落粒重;由山东、河南引进的品 Since the liberation, we have been used in the breeding of millet, local varieties of identification, introduction and selection of systems and other methods. It seems that introduction of natural conditions by the larger restrictions. For example, the cultivars introduced from Heilongjiang and Inner Mongolia generally showed weak growth, early maturity and low yield. The cultivars introduced by Gansu and Qinghai showed late ripeness and heavy grain weight. The introduced products from Shandong and Henan