摘要
综述了国内无核柑桔类型选育研究进展。通过芽变、实生选种及诱变育种等手段，我国已先后获得了１１９个无核或少类类型的柑桔品种（品系），涉及柑桔属的主要栽培种类和金柑属、黄皮属。芽变选种和实生选种为获得无核或少核类型的有效途径。大多数无核变异与花粉育性下降有关，胚囊败育、倍性变异及自交不亲和也是造成无核的原因。细胞工程技术为培育无核柑桔类型开展了一条新途径。
Seedlessness is an important economic trait of citrus. 119 seedless cultivars and strains of citrus were obtained by bud sport selection, chance seedling selection and induced mutation, etc.. These seedless cultivars and strains belong to the leading cultivated species of genera Citrus, Fortunella and Clausena. Both bud sport and chance seedling selection are still the efficient methods for the breeding of seedless citrus. Most of these seedless mutants are related to the reduced pollen fertility; Embryo sac abortion, chromosome ploidy variation and self incompatibility are also the reasons for seedlessness. The technique of cyto engineeriing will provide a new channel for the breeding of seedless citrus.
出处
《园艺学报》
CAS
CSCD
北大核心
1996年第3期235-240,共6页
Acta Horticulturae Sinica
基金
国家自然科学基金
关键词
柑桔
无核
芽变
实生变异
诱变
柑桔类果树
Citrus
Seedlessness
Bud sport
CHance seedling variation
Induced mutation
