BibTeX
@MISC{_mainphases,
author = {},
title = {Main Phases of Wood Formation in Chestnut},
year = {}
}
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Abstract
doi:10.5552/drind.2011.1124 ABSTRACT • We present wood formation in chestnut (Castanea sativa) during the growing seasons 2008 and 2009, compare its dynamics in the two years and discuss possible effects on wood quality. To this purpose, micro-cores containing wood, cambium and phloem were collected at weekly intervals from 10 chestnut trees growing at the Cimini mountains near Viterbo, Central Italy. In 2008, the onset of wood formation started before the fi rst sampling on 17 April 2008. Onset of lignifi cation of the fi rst formed vessels was observed around 23 April (day of the year DOY 113.8 ± 5.3) and the fi rst latewood vessels were observed around 5 June 2008 (DOY 156.5 ± 7.7). Latewood formation continued until 29 September 2008 (DOY 273.9 ± 10.5) when the terminal cells of the newly formed xylem ring were fully lignifi ed. In 2009, the main phases of wood formation generally occurred earlier than in 2008. The expansion of earlywood vessels was observed around 10 April (DOY 99.7 ± 6.1), the onset of lignifi cation around 22 April (DOY 111.9 ± 7.4) and the fi rst latewood vessels around 28 May 2009 (DOY 147.9 ± 4.7). Lignifi cation of the last formed cells was completed by 26 September 2009 (DOY 273.9 ± 10.5). The average duration of tree-ring formation was 161 days in 2008 and 169 days in 2009, the average ring widths were 3296 ±
Keyphrases
wood formation main phase lignifi cation latewood vessel wood quality fi rst xylem ring year doy latewood formation cimini mountain earlywood vessel average ring width possible effect lignifi ed chestnut tree terminal cell last formed cell central italy weekly interval tree-ring formation average duration
