Subsequent growth of some of the axillaries results in first-order branching of the main stem . 一些腋芽继续生长形成主茎的第一级分枝。
2.
2 . the better way is by the axillary bud to multipropagate variegated hosta cultivars 腋芽增殖扩繁是花叶玉簪品种稳定扩繁的有效手段。
3.
Particular way is : should help sang youmiao up to grow about 20 centimeters tall when make a top , make shoot of bottom axillary bud 具体做法是：当扶桑幼苗长到约20厘米高时打顶,促使下部腋芽萌发。
4.
Higher value of ba / naa improved the initition of axillary bud , but as the result , the variegated parts were lost 增加ba naa值可以促进腋芽发生，但对有些品种会增加花叶性状的变异率，即花叶性状的丢失。
5.
This article summarized the progresses of plant growth regulators in tobacco , which mainly included its effects on budding of tobacco seeds , growth of roots and shoots , nutrition of potassium and biosynthesis of nicotine 主要从生长调节剂对烟草种子萌发、根系生长、钾素营养、烟碱合成、腋芽抑制等的调节作用方面进行阐述。
6.
Rate of cluster buds induced by different gingkgo explants is not the same . among them , cluster buds can be obtained directly from stems and mostly from axillar bud , but the amount is little and differentiation rate is only 20 % 银杏不同外植体对丛生芽的诱导不同，银杏茎段培养可以直接得到丛生芽，但数量极少，而且大部分属于腋芽萌发，分化率20左右。
7.
In this study , the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants . the effects of different basic mediums , different hormone kinds and their concentrations ratios , different sucrose concentrations on calli induction , buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied . on the base of high frequency regeneration system , the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays 本实验首先以生长良好的四倍体刺槐优株上当年生新梢的带腋芽茎段为外植体，研究了在四倍体刺槐高频再生体系的建立过程中不同基本培养基、不同激素浓度及其配比、不同蔗糖浓度对愈伤组织的诱导、芽的分化及生根的影响；然后在得到高频再生体系的基础上，通过农杆菌介导法转化甜菜碱醛脱氢酶( badh )基因，以gus染色组织分析为依据探讨了影响转化效率的各种因素，建立了高效、可重复的基因转化体系，为四倍体刺槐目的基因的导入打下了基础。
