網頁We review methods for determining stem xylem hydraulic conductivity, with an emphasis on methods using easily por-table equipment. We build upon an earlier discussion of this … 網頁Stem hydraulic conductivity, water status of the needles and stomatal conductance changed similarly between the top and basal parts during drought and post-drought …

Vulnerability and hydraulic segmentations at the …

網頁Stem hydraulic conductivity was measured on segments excised from the distal ends of branches in all species. The size of excised segments was standardized such that diameters fell in the range 2–5 mm with the bark removed and lengths were 0.15–0.35 m. 網頁2001年5月1日 · Reduction in stem hydraulic conductivity after a single freeze-thaw cycle was minimal in conifers and the vessel-less angiosperm species Tasmannia lanceolata (Winteraceae), whereas mean loss of conductivity in … cap burberry

Divergent hydraulic strategies to cope with freezing in co‐occurring temperate tree species with special reference to root and stem …

網頁2024年6月4日 · P12,stem, P50,stem, and P88,stem (megapascals) were extracted from vulnerability curves, such that Px,stem corresponds to the water potential for which x % of the maximum conductivity is lost. 網頁As a result, the ≤4 m height range is a crucial one for understanding the role of stature in plant hydraulic adaptation to extreme environments. Moreover, because the conduit diameter–stem length relationship follows a power law-like function ( SI Appendix, Figs. S1 and S2 ), small height changes in plants ≤4 m tall imply marked changes ... 網頁2024年5月23日 · Compared with REB, SHB showed lower sapwood hydraulic conductivity (KS) and P50 (xylem water potential with 50% embolism in xylem), suggesting that SHB has less conductive but safer xylem than REB. The hydraulic functional differences between two blueberry xylems were highly related to their significant differences in vessel anatomy. british hip society guidelines