To promote the utilization of superior millet resources in northwest Shandong,the yield and agronomic characters of 17 new summer millet varieties in northwest Shandong were studied by grey correlation analysis.Through investigation and statistical analysis,it was found that among the agronomic traits affecting grain yield,the correlation sequence of the seven agronomic traits related to grain yield was in the order of growth date>plant height>ear number>ear weight per spike>ear weight per spike>ear length>1 000-grain weight.Among them,growth date,plant height,ear number,ear weight per spike and grain weight per spike had higher correlation with grain yield.Therefore,in order to promote the development of high quality and high yield of summer millet in northwest Shandong,we should choose the millet varieties with longer growth period,higher plant height and more ear under the premise of meeting the normal development and maturity.
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