谷子产量与主要农艺性状的灰色关联度分析

以2009年国家谷子区域试验西北区中晚熟组12个谷子品种（系）的试验结果为数据材料,运用灰色关联度分析法,分析了9个主要农艺性状与产量关系的密切程度。结果表明：9个农艺性状对产量的关联序为穗粒重〉单穗重〉出谷率〉穗粗〉纹枯病〉千粒重〉穗长〉株高〉生育期。说明穗粒重、单穗重、出谷率和穗粗4个性状对产量影响较大,纹枯病、千粒重、穗长、株高和生育期对产量影响较小。

Grey Relational Grade Analysis on Yield and Main Agronomic Characters of Foxtail Millet

Using twelve foxtail millet varieties in the middle-late mature group of the national regional test of Northwest China in 2009,the correlation between nine main agronomic characters and yield was analyzed by the grey relational grade analysis method.The results showed that the relational order was as follows：grain weight per spikespike weightgrain percentagespike widthsheath blight1 000-seed weightspike lengthplant heightgrowth stage.It revealed that grain weight per spike,spike weight,grain percentage and spike width had more influence on the yield than the other five agronomic characters.