Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (27): 93-97.doi: 10.11924/j.issn.1000-6850.2014-0802

Special Issue: 玉米

Previous Articles     Next Articles

Correlation and Path Analysis of Main Agronomic Traits of Waxy Corn Hybrids

  

  • Received:2014-03-24 Revised:2014-03-24 Accepted:2014-05-30 Online:2014-10-15 Published:2014-10-15

Abstract: The test was carried out the correlation and path analysis of 10 main agronomic characters and plot yields of fresh ear of waxy corn. The results showed that the traits of plant height, ear height (r=0.6288**), plant height and double spike rate (r=0.5779**), plant height and panicle length (r=0.5069**), plant height and ear diameter (r=0.4878**), double spike rate and grain number per row (r=0.4877**), grain number per row and ear diameter (r=0.4686**), bald tip length and number of rows per ear (r=0.4355**) were significantly positive correlated. Bald tip length and double spike rate (r=0.4356**), bald tip length and grain number per row (r=-0.5350**) were significantly negative correlation. The greatest effect of fresh ear yield was caused by the number of rows per ear (r=0.5314**, P=0.7480), followed by the effects of the double spike rate (r=0.4724**, P=0.4177), grain number per row (r=0.4127*, P=0.2317) and 100 grain weight (r=0.3637*, P=0.2159). In order to obtain high yields of waxy corn, attentions should be paid to increase the number of rows per ear, kernels per row, rate of twin spike and grain weight, coordinate the relationship between different characters, and control plant height, ear height and bald tip length traits.