观察分析了苹果和梨胚培各类梢及其分枝的起源。研究了激素对苹果和梨胚发生不定梢肢分枝的作用。证明利用适当激素,既可促使苹果和梨胚产生不定梢,又可促其萌发分枝,为试管诱变育种,减少嵌合体干扰,提供了依据。 The origin of various shoots and their branches in apple and pear embryos was observed and analyzed. The effects of hormones on shoots of adventitious shoots in apple and pear embryos were studied. Proved that the use of appropriate hormones, both to promote apple and pear embryos produce indefinite shoots, but also promote the germination of branches, in vitro mutation breeding, to reduce chimera interference provided the basis.