玉米杂交种丹玉502（丹5115）选育与应用

丹玉502是丹东农业科学院以自选系丹1705为母本，自选系丹765为父本组配而成的玉米单交种。通过辽宁省两年区域试验，平均比对照种郑单958增产6．4％，该品种具有适应性广、抗倒伏、多抗各种病害、高产稳产、生育期适中、品质好、边行优势不明显等特点，是值得北方春玉米区重点推广的新品种。关键词：玉米杂交种：丹玉502;品种选育

The Selection and Application of A New Maize Hybrid 'Danyu502'

Danyu502 is a single cross maize hybrid which was bred in Dandong Academy of Agricultural Sciences by crossing Dan1705 as female parent and Dan765 as male parent.The results of regional tests in Liaoning province from 2005 to 2006 showed that Danyu502 can increase 6.4% grain yield more than the hybrids using in production and has the characters of wide adaptation,resistance to multi-diseases,lodging and drought,high and stability yield,medium maturity,high quality and without side superiority.Danyu502 is ap...