早熟高产优质玉米新品种龙辐玉4号的选育及应用

The Breeding and Application of New Maize Variety Longfuyu No.4 with Early-mature, Good-quality and High Yield

龙辐玉4号玉米杂交种是黑龙江省农科院原子能利用研究所1996年春以自育系辐6706为母本,外引系黄流大穗为父本杂交选育而成。该品种属中熟类型,全生育期需≥10℃积温2492.9℃·d左右。1997～2001年在各级产量试验示范中均表现高产、稳产。

Corn single-cross variety Longfuyu No.4 was bred by inbred-line Fu6706(female) and Huangliudasui(male) in Institute for Application of Atomic Energy Heilongjiang Academy of Agricultural Sciences. Longfuyu No.4 is a medium hybrid. It needs a total temperature of 2 492.9℃·d (≥10℃). In 1997 ～ 2001, all kinds of yield test results showed: Longfuyu No.4 had the characteristics of high and stable yield?It has been approved and released by the Heilongjiang Provincial Committee of Crop Variety and named by Longfuyu No.4 in February 2004.