General and specific combining ability for brix and 4 yielding characters of 10 parental clones of sugarcane were estimated from the seed- lings of 25 crosses mated in incomplete diallel design.

• 以不完全双列杂交设计配制的25个组合实生苗为材料,估算了10个甘蔗亲本的锤度及4个产量性状的gca和sea。