【摘要】 本文采用灰色关联分析的方法，研究了玉米５个主要经济性状与产量（单穗粒重）之间的关系，结果表明，关联度大小依次为穗粗＞百粒重＞穗粒行数＞行粒数＞穗长，为玉米高产育种提供重要的理论依据。更多还原

【Abstract】 The relation between main economic characters and yield(seed weight Per ear)in the cornwas studied with mathematical method of the relational grade analysis of the grey system theory. Theresults showed that the relational grade to yield from maximum to minimum were ear thickness,100 seed weight,ear-line number,line-grain number and ear length.更多还原