摘要： 在河南、山西、甘肃三个纬度相近而温度差异较大的试点，对90个谷子品种的出苗到抽穗日数进行了研究。结果表明，各品种之间出苗到抽穗所需温度差异很大，且不同来源的品种对温度的敏感程度也不同。明确了我国谷子主产区各生态区主要推广种的感温性，并筛选出4个对温度不敏感的品种和42个较不敏感的品种。

关键词: 谷子, 品种, 感温性, 抽穗日数

Abstract: The days from emergence of seedlings to heading of 90 millet varieties were studied in Henan, Shanxi and Gansu where the temperatures are rather different but the latitudes are close.The results indicated that the temperatures needed from emergence of seedlings to heading were quite different among these varieties and that the temperature-sensitive degrees of these varieties of different sources were also different.Temperature sensitivities of leading popular cultivars in the ecological regionsof main production area of Chinese millet were cleared, and the 4 varieties that were not sensitive to temperature and 42 varieties that were moderate-sensitive to temperature were screened.

Key words: Millet, Variety, Temperature-sensity, Days to heading

中图分类号: 

• S515.01