热带、亚热带玉米种质的改良利用

阐述了国内外对热带、亚热带玉米种质研究利用现状。热带、亚热带种质引种到温带要进行种质鉴定，通过混合选择或与温带种质互导改良以及轮回选择等途径，可筛选出更多抗病虫、耐旱、耐瘠薄、优良农艺性状等有利基因。

The Improvement and Utilization of the Tropical and Subtropical Maize Germplasm in China

The article reviewed the present and future situations on the improvement and utilization of tropical and subtropical maize(Zea mays L.) resources in temperate zone at home and in abroad. By these breeding approaches such as mix selection, recurrent selection or introducing excellent gene resources each other using the introduced and identified tropical or subtropical germplasm and Chinese temperate germplasm, these elite maize materials, possessing high resistance to diseases, pests, drought, infertility and good agronomic characters, could be screened out.