Open AccessPrimary growth and morphological markers of interannual growth limits in Cupressaceae from Patagonia
Author(s) -
GROSFELD JAVIER,
BARTHÉLÉMY DANIEL
Publication year - 2004
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1111/j.1095-8339.2004.00331.x
Subject(s) - cupressaceae , threatened species , population , productivity , biology , botany , geography , ecology , habitat , demography , pollen , macroeconomics , sociology , economics
The present study shows experimentally that primary growth of the native Patagonian Cupressaceae Austrocedrus chilensis (D. Don) Pic.‐Serm et Bizz., Fitzroya cupressoides (Molina) I. M. Johnst. and Pilgerodendron uviferum (D. Don) Florin is potentially continuous. External morphological markers of interannual growth limits have been identified for the main axes of these species after several years of observation. Such limits correspond with axis portions in which internodes are relatively short and leaves have a small distal free end forming an acute angle with the axis. The causality of these results and their utility for studying the productivity, adaptation to different environments, population management and conservation of these threatened species are discussed. © 2004 The Linnean Society of London, Botanical Journal of the Linnean Society, 2004, 146 , 285–293.