Lengthening the growing season driven by climate change may not lead to enhanced carbon sequestration from wood production.Īnt colonies are higher-level organisms consisting of specialized reproductive and non-reproductive individuals that differentiate early in development, similar to germ–soma segregation in bilateral Metazoa. Trees with a longer growing season produced more cells but not more biomass in the wood. More productive individuals generated a higher proportion of earlywood and cells with larger sizes. Earlywood production explained 95% of the variability in xylem production. On average, each additional xylem cell lengthened the growing season by 1 day. ![]() Trees with larger cell production experienced a longer growing season, with an earlier onset and later ending of wood formation. Xylem developed in a time window ranging from 44 to 118 days, producing between 8 and 79 cells. We collected wood microcores weekly from April to October 2018 from 27 individuals in Quebec (Canada) and prepared anatomical sections to assess wood formation dynamics and their relationships with the anatomical traits of the wood cells. This study evaluated the intra-annual individual variability in growth traits in balsam fir. However, their relationships with wood anatomical traits remain partially unresolved. ![]() ![]() Within a forest, trees exhibit different timings and rates of growth during wood formation. A reliable assessment of forest carbon sequestration depends on our understanding of wood ecophysiology.
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