早熟高产优质多抗玉米新品种长单525的选育

Breeding of Early Maturing,High Yield and Multi-resistance New Maize Varieties Changdan 525

长单525是山西省农业科学院谷子研究所于2003年以外引自交系KY9903为母本,以自选自交系KY414-6为父本杂交选育而成的早熟高产玉米单交种。在各级试验中,长单525表现为高产、稳产、多抗,适宜在山西省春播玉米特早熟区、中南部复播区及有效积温在2 000℃以上的同类地区种植,每公顷留苗5.25万～6.00万株。

Changdan 525 is of early maturing and high yield mixed maize hybrid with introduced inbred KY9903 as female parent and optional inbred KY414-6 as male parent. As far as test performance at all levels is concernned, the breed showed high yield and multiple resistance and was suitable for multiple cropping in the southern Shanxi, as well as the similar area with effective accumulate temperature over 2 000℃.