Dynamic changes in cambial anatomy and xylem cell differentiation of shoots in populus tomentosa 毛白杨枝条木质部细胞分化的动态变化及其与形成层活动的相互关系
2.
Periodicity of cambial activity and variability of peroxidase and esterase isozymes in eucommia ulmoides oliv 杜仲形成层活动周期及过氧化物酶和酯酶同工酶的变化
3.
Annual ring ( growth ring ) the annual increase in girth of the stems or roots of woody plants , as a result of cambial activity 年轮：木本植物形成层的活动随着季节的更替而表现出有节奏的变化。
