红塔区杂交玉米新品种区域试验

杂交玉米品种层出不穷，但其适宜种植的范围各有差异，为全市品种审定和更好地筛选出适宜红塔区种植的品种提供理论依据，此试验引进7个玉米新品种进行对比试验，对各品种的特征特性、抗逆性、产量进行了对比研究。结果表明：‘西单5号’和‘DY205’比对照‘海禾2号’增产，生育期适中，株型特紧凑、成株整齐，锈病、灰斑病轻，总体表现好。其中‘西单5号’每公顷产量最高达11400.00 kg，全育期134天，株高270.6 cm，穗位高123.9 cm，穗长20.3 cm，穗行数15.8行，行粒36.2粒，千粒重378.9 g，可适当扩大示范种植，注意及时收获；‘DY205’每公顷产量11125.00 kg，全育期136天，株高289.7 cm，穗位高137.3 cm，穗长21.3 cm，穗行数14.8行，行粒32.6粒，千粒重400.8 g，可适当扩大示范种植。

The Regional Test of New Hybrid Corn Varieties in Hongta District

Though many kinds of hybrid corn varieties continuously come out,the suitable planted regions are different.With the purpose of providing theory basis for selecting varieties which are suitable for the soil of Hongta district,in this study,it introduced a comparative trial to 7 new varieties of corn,and made a research for each variety ' s feature,resistance and corn yield.The results showed:comparing with ' Haihe2 ' and ' Xidan5 ',' DY205 ' could produce more,appeared moderate growing period,compact-type,o...