Periodicity of Vascular Cambial Activity and Dynamic Changes of Cell Ultrastructure in Populus deltoides
YIN Zeng-fang, FAN Ru-wen, HUANG Jin-sheng
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2006, (06): 1 -6 .  DOI: 10.3969/j.jssn.1000-2006.2006.06.001