玉米杂交种丹玉55号的选育与应用

Breeding and Application of a Maize Hybrid 'Danyu 55'

丹玉 5 5号是丹东农业科学院以自选系K1 6 2为母本 ,外引系沈 1 3 7为父本组配而成的玉米杂交种。该品种属晚熟品种。 1 996～ 2 0 0 0年在各级试验中表现了高产、稳产、优质、抗病、抗倒、出籽率高、活秆成熟、制种产量高等特点。一般产量 945 0 .0kg/hm2 比对照掖单 1 3增产 8%以上。适宜辽宁省种植掖单 1 3号、丹玉 2 6号的地区种植 ,在辽宁南部及渤海、黄海沿岸种植效果更佳。

Danyu 55 is a single cross maize hybrid which was by K162×Shen137.Danyu 55 is a late maturing hybrid .The hybrid showed high and stable yield at various experiment plots in various areas in 1995～1999.The result showed that it had very high ability of disease resistance, lodging resistance, drought resistance and . Matures when plant is still green. In general conditions, the hybrid average yield was above 9 450.0 kg/hm 2, increased by 8%than local public varieties.The adaptive planting areas of Danyu 55 were in the area where Yedan 13 and Danyu 26 were planted in Liaoning prouince, especial the southern part of Liaoning and the coastland of Yellow Sea and Bohai Sea.