The book Growth Studies in Forest Trees was written by author Brown, Harry Philip, 1887-1951 Here you can read free online of Growth Studies in Forest Trees book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Growth Studies in Forest Trees a good or bad book?
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Here some 8-12 tracheids and 2 or 3 new sieve tubes were already formed. Wall 208 BOTANICAL GAZETTE [march thickening had not begun in the new tracheids, but was noticeable in the first of the new sieve tubes. Cutting II exhibited only slight evidences of cell division, while in cutting III growth was well started. No division had yet occurred in cutting IV. Growth had been very rapid in cuttings I and III, as evinced by the absence of thickening of the cell wall. This may be accounted for in p...art by the high temperatures which prevailed between April 22 and 26. During that period the mean daily temperatures ranged from 52° to 70° F. Precipitation amounted to only 0.03 inch, but large amounts of ground water were available at that season. TABLE C Beginning op growth by cell division, tree i,- April 26, 1913 Cutting Growth Number of tracheids Wall thickening New sieve tubes I Present Indication Present None 8-12 0- I 6-9 None None None None 2-3 0— I II ... Ill IV 1-2 (?) To explain plausibly the conditions in cutting II, the point of greatest growth the preceding season (table H), is not an easy task.
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