bud sport

基本解释

The apple breeding aim in different period, cross breeding, seedling selection, selection of bud sport, mutation breeding, as well as the status of assistant breeding technique is discussed.
分析了不同时期苹果育种的目标、采用的育种方法、培育的新品种及辅助育种技术的研究进展；

In 2007 commissioner Bud Selig said the sport was healthier than ever.
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ECONOMIST: American sports

a shoot, inflorescence, etc, that differs from another such structure on a plant and is caused by a somatic mutation the differences can be retained by vegetative propagation