H
CHAPTER 6 Hybridization Breeding 杂交育种
Hybridization -Crossing v Sexual Crossing √ Asexual Crossing Distant Crossing -interspecific Crossing Intraspecific Crossing - inter-varietal Crossing In this chapter: Hybridization Breeding i.e. CROSS BREEDING
Hybridization – Crossing ✓ Sexual Crossing ✓ Asexual Crossing ▪ Distant Crossing - interspecific Crossing ▪ Intraspecific Crossing – inter-varietal Crossing In this chapter: Hybridization Breeding i.e. CROSS BREEDING
8 1 The Conception and Significance of Cross Breeding 杂交育种的概念和意义 What is Cross Breeding? P85 Crossing with different genotypes Trials for identification and selection New cultivar(s) Types of Cross Breeding Combination Breeding组合育种: Combination of diff. genes Transgression Breeding超亲育种 Accumulation of minor poly- g enes
1. What is Cross Breeding? P.85 Crossing with different genotypes Trials for identification and Selection New cultivar(s) Types of Cross Breeding: §1 The Conception and Significance of Cross Breeding 杂交育种的概念和意义 ✓ Combination Breeding 组合育种：Combination of diff. genes ✓ Transgression Breeding 超亲育种: Accumulation of minor polygenes
2. Significance of Cross Breeding The most widely used breeding method in present The most fruitful breeding method in present (p. 86) The combined use with other breeding methods
2. Significance of Cross Breeding The most widely used breeding method in present The most fruitful breeding method in present (p.86) The combined use with other breeding methods
8 2 Selection and Combination of Parents 亲本选择和选配 1. Selection of parents亲本选择 The Importance Pre-condition of successful breeding The principles p87 Large number of source materials Obvious objective characters Local popularized varieties Genetic characteristics of the objective characters
§2 Selection and Combination of Parents 亲本选择和选配 1. Selection of Parents 亲本选择 The Importance Pre-condition of successful breeding The Principles p.87 Large number of source materials Obvious objective characters Local popularized varieties Genetic characteristics of the objective characters