§2 Polyploid Breeding多倍体育种 1. Selection of materials Agronomically superior Smaller chromosome number Capable of asexual fruit setting reat more varieties§2 Polyploid Breeding 多倍体育种 1. Selection of Materials ▪ Agronomically superior ▪ Smaller Chromosome number ▪ Capable of asexual fruit setting ▪ Treat more varieties