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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (21): 16-23.doi: 10.11924/j.issn.1000-6850.casb14120171

Special Issue: 玉米

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Grey Correlation Analysis of Yield and Main Agronomic Traits of 44 Maize Hybrid Lines

  

  • Received:2014-12-24 Revised:2015-06-19 Accepted:2015-05-12 Online:2015-07-28 Published:2015-07-28

Abstract: To investigate the influence of main agronomic traits of different maize varieties on yield, the author adopted grey correlation analysis method to analyze the correlation of the main agronomic traits and yield of 44 maize varieties in 2013. The results indicated that traits such as ear diameter (0.9874), leaf number (0.9645), ear length (0.9488), plant height (0.9465), rows per pear (0.9429), 100-kernel weight (0.9244), ear height (0.9088), shelling percentage (0.8882), and barren tip (0.7381) affected the yield of maize. Among these agronomic traits, ear diameter, leaf number and ear length had the maximum influence on maize yield, followed by the plant height, ear rows and 100-kernel weight, and by comparison, ear position, shelling percentage and barren tip had the minimum influence.