KrauseRossiThibeault-MartelEtAl2010

Référence

Krause, C., Rossi, S., Thibeault-Martel, M. and Plourde, P.-Y. (2010) Relationships of climate and cell features in stems and roots of black spruce and balsam fir. Annals of Forest Science, 67(4):7. (Scopus )

Résumé

The anatomical differences of mature black spruces and balsam firs were examined at stem and root level in order to characterize their wood properties at cellular level and link these differences to climate. Anatomical variability of these species was evaluated in relation to climate data gathered from 2001 to 2004 during the cell enlargement (CE) and wall thickening and lignification (WTL) phases. Lumen area, single cell wall thickness and total tracheid radial diameter were analyzed and regrouped into earlywood and latewood. Results from a principal component analysis (PCA) indicated that both first eigenvectors account for 82% and 90% of total variance for CE and WTL respectively. These component factors revealed that precipitation, humidity and number of days with precipitation significantly influence the lumen area (p = 0.0168) and radial cell diameter (p = 0.0222) in earlywood. Significant differences were registered between species and tree parts (stem and root) for the lumen area, radial cell diameter and cell wall thickness in both earlywood and latewood. In our study, black spruce exhibited smaller tracheid size in both stem and roots compared to balsam fir. Furthermore, the lower amount of tracheids produced during the growing season and higher proportion of latewood ensure a higher wood density of black spruce. The influence of temperature on earlywood formation is significant, whereas no influence was observed on latewood. © INRA, EDP Sciences, 2010.

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@ARTICLE { KrauseRossiThibeault-MartelEtAl2010,
    AUTHOR = { Krause, C. and Rossi, S. and Thibeault-Martel, M. and Plourde, P.-Y. },
    TITLE = { Relationships of climate and cell features in stems and roots of black spruce and balsam fir },
    JOURNAL = { Annals of Forest Science },
    YEAR = { 2010 },
    VOLUME = { 67 },
    PAGES = { 7 },
    NUMBER = { 4 },
    ABSTRACT = { The anatomical differences of mature black spruces and balsam firs were examined at stem and root level in order to characterize their wood properties at cellular level and link these differences to climate. Anatomical variability of these species was evaluated in relation to climate data gathered from 2001 to 2004 during the cell enlargement (CE) and wall thickening and lignification (WTL) phases. Lumen area, single cell wall thickness and total tracheid radial diameter were analyzed and regrouped into earlywood and latewood. Results from a principal component analysis (PCA) indicated that both first eigenvectors account for 82% and 90% of total variance for CE and WTL respectively. These component factors revealed that precipitation, humidity and number of days with precipitation significantly influence the lumen area (p = 0.0168) and radial cell diameter (p = 0.0222) in earlywood. Significant differences were registered between species and tree parts (stem and root) for the lumen area, radial cell diameter and cell wall thickness in both earlywood and latewood. In our study, black spruce exhibited smaller tracheid size in both stem and roots compared to balsam fir. Furthermore, the lower amount of tracheids produced during the growing season and higher proportion of latewood ensure a higher wood density of black spruce. The influence of temperature on earlywood formation is significant, whereas no influence was observed on latewood. © INRA, EDP Sciences, 2010. },
    COMMENT = { Export Date: 11 May 2010 Source: Scopus CODEN: AFOSF doi: 10.1051/forest/2009122 },
    ISSN = { 12864560 (ISSN) },
    OWNER = { Luc },
    TIMESTAMP = { 2010.05.11 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-77949619421&partnerID=40&md5=c2c91eb83bf992d8c4e41260f3879197 },
}

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