There are a number of bud sports of popular varieties . 流行的品种中有相当数量的芽变。
2.
Non-russet sprouts can arise from completely russet apples . 全锈苹果中可能产生不锈芽变。
3.
Analysis of endogenous enzymes activity in mutant of populus tomentosaand its relative species during root formation 芽变毛白杨及其亲缘种扦插生根相关内源酶活性特征分析
4.
New cultivars were traditionally breeded by using bud mutation . it takes long period of time and is poor - oriented . genetic engineering provides an alternative 由于菊花的传统育种方式是利用芽变(菊花雌雄性性器官退化)的方法来选育新品种，所以育种的速度慢，周期长，定向性差。
