异常天气条件下不同玉米品种分蘖特性比较

Study on Tiller Characteristics of Maize Varieties in Abnormal Weather Condition

2009年异常高温天气导致河南玉米大量分蘖,结合新品种鉴定筛选试验,调查30个品种在异常天气条件下的分蘖特性。结果表明,品种间分蘖率差异显著,先玉335的分蘖率最高,达74.91%;济单7号的分蘖率最低,为4.78%。整体上看,适宜高密度种植的品种分蘖率较高,适宜低密度种植的品种分蘖率较低,且低密度品种间分蘖率差异明显。

Abnormal weather in June lead to corn varieties producing more tillers in Henan province. In the experiment the tiller characteristics of 30 varieties were investigated in the abnormal weather condition. The result showed that the tiller rate among varieties differed obviously. The tiller rate of Xianyu335 was the highest, being 74.91%, while that of Jidan No.7 was the lowest, being 4.78%. In total, the tiller rate of varieties being planted with high density was higher, while that of varieties with lowdens...