85 Selection Breeding of Asexually propagated plants无性繁殖植物的选择育种 1. Selection of Bud mutation (1)Characteristics of Bud mutations Bud mutations are somatic cell mutations Characteristics: Diversified orientation of the variations Reproducible variations Stable variations Chimericalvariations: periclinal周缘的, sectorial横向的 Limitations: small probabilities to happen1. Selection of Bud Mutation §5 Selection Breeding of Asexually propagated plants 无性繁殖植物的选择育种 (1) Characteristics of Bud mutations Bud mutations are somatic cell mutations Characteristics: . Diversified orientation of the variations . Reproducible variations . Stable variations . Chimerical variations: periclinal 周缘的, sectorial 横向的 . Limitations: small probabilities to happen