晋单号玉米品种选育回顾及种质利用分析

山西省20世纪共育成审定玉米品种40个,其中专用玉米2个,占总数的5%;科研单位选育品种35个,占总数的87.5%;在采用的62个自交系中,选系基础材料属于地方品种的有12个,占19.4%;来自综合种和群体材料的有14个,占22.6%;选自杂种的有27个,占43.5%。在62个双亲自交系中,本省自选系47个,占67.7%;外省选育系17个,占27.4%;国外引入系4个,占6.4%。

Retrospect of Jindanhao Corn Varieties Bred and the Analysis of Their Germplasm Utilization

Forty corn varieties were bred and approved officially in Shanxi Province in 20th century.Two of them are commercial varieties for special purpose,accounting for 5% of total amount.Thirty five of them were bred by the science research unites,accounting for 87.5% of them.Among the selected in bred lines,twelve of them were selected from local varieties,accounting for 19.4%,14 of them were synthetic cultivar or population cultivar,accounting for 22.5%.27 of them were selected from hybrids,accounting for 43.5%.Among the parents inbred lines,47 of them were selected in Shanxi,accounting for 67.7%;17 of them were bred in other Provinces,accounting for 27.4%;the foreign inbred lines account for 4.9%.