Comparing stem respiration and growth of jack pine provenances from northern and southern locations.
نویسنده
چکیده
Stem respiration rates of 31-year-old jack pine (Pinus banksiana Lamb.) trees from northern and southern provenances growing in a common garden were compared. At 15 degrees C, the seasonal course of stem respiration rate of northern provenances was not statistically different from that of southern provenances. A relationship existed between maintenance respiration rate and stem growth rate. Because relationships between sapwood relative growth rate and annual growth and maintenance respiration rates were similar for northern and southern provenances, no clinal differences in stem respiration rates were observed.
منابع مشابه
Growth and maintenance respiration rates of aspen, black spruce and jack pine stems at northern and southern BOREAS sites.
We measured stem respiration rates during and after the 1994 growing season of three common boreal tree species at sites near the northern and southern boundaries of the closed-canopy boreal forest in central Canada. The growth respiration coefficient (r(g); carbon efflux per micro mole of carbon incorporated in structural matter) varied between 0.25 and 0.76, and was greatest for black spruce ...
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ورودعنوان ژورنال:
- Tree physiology
دوره 16 10 شماره
صفحات -
تاریخ انتشار 1996