Combining Ability Analysis of Maize Improved Inbred Lines of Highland Local Germplasm

【Objective】In order to verify the plateau local germplasm improvement effect,explore the heterosis groups.【Method】In this study,we employed 12 typical inbred lines from 6 main heterotic pattern groups as female parents and 5 inbred lines which containing local plateau consanguinity as the male parents,designed 60 combinations following the NCⅡ.After field identification,combining ability of F1 was detected by analysis 11 production traits such as yield per plant.【Results】Significant or extremely significant difference were exist in all of these inbred lines within these 11t raits.【Conclusion】The local inbred lines such as 81111,8111 WO show higher general combining ability which means a progress in the improvement of local germplasm resources,and it is easy to gain strong heterosis by combining Reid or Lvdahonggu group with the local plateau germplasm.