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现代果树栽培的特点是矮化密植丰产生产集约化。因此选育适于密植丰产、便于管理、树冠紧凑的新品种成为当前重要的育种目标,但必须要有矮生基因源。当前很多国家都在积极发掘和人工创造矮生种质材料。例如国外将我国的寿星桃作为培育矮生桃新品种的基因来源。意大利从栽培品种自然杂交和人工杂交后代中选出一些半矮化单系,株
Modern fruit cultivation is characterized by dwarf dense planting yield intensive production. Breeding suitable for close planting high yield, easy to manage, compact new crown species has become an important breeding target, but must have dwarf gene sources. At present, many countries are actively exploring and artificially creating dwarf germplasm materials. For example, China’s longevity peach abroad as a new breed of dwarf peach gene source. In Italy, some semi-dwarfing single lines and strains were selected from the natural crosses and artificial crosses of cultivars