Temperature responses of cambial reactivation and xylem differentiation in hybrid poplar (Populus sieboldii x P. grandidentata) under natural conditions

• Published in: Tree physiology Vol. 28; no. 12; pp. 1813 - 1819
• Main Authors: Begum, Shahanara, Nakaba, Satoshi, Bayramzadeh, Vilma, Oribe, Yuichiro, Kubo, Takafumi, Funada, Ryo
• Format: Journal Article
• Language: English
• Published: Canada Heron Publishing 01.12.2008
• Subjects: air temperature; cambial activity; cambial reactivation index; cambium; Cell Differentiation; cell growth; dormancy breaking; heat treatment; Hybridization, Genetic; hybrids; Meristem - cytology; Meristem - physiology; Populus; Populus - anatomy & histology; Populus - cytology; Populus - physiology; Populus sieboldii; seasonal variation; spring; stems; Temperature; xylem; Xylem - cytology; Xylem - physiology; xylem vessels; secondary xylem differentiation; cambial reactivation index; cambial activity

Several studies have demonstrated that localized heating of tree stems induces localized cambial reactivation. We analyzed by light microscopy the effects of early spring increases in ambient temperature in 2005 and 2007 on the timing of cambial reactivation and xylem differentiation in stems of two...