Pamphlets on Forestry, Volume 41991 |
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Page 288
... trunk was 5.8 cells with a diameter of 139 μ . If reference is made to TABLE VIII it will be seen that no growth occurred in branch No. 2 while in the trunk at this region the increase was 55.5 μ . The average diameter of xylem in ...
... trunk was 5.8 cells with a diameter of 139 μ . If reference is made to TABLE VIII it will be seen that no growth occurred in branch No. 2 while in the trunk at this region the increase was 55.5 μ . The average diameter of xylem in ...
Page 290
... trunk on April 19 an increase in phloem cells was evident . The increase of cambium and phloem was gradual over the entire trunk in tree A up to May 25 , the greatest increase being main- tained in the middle region . Similar conditions ...
... trunk on April 19 an increase in phloem cells was evident . The increase of cambium and phloem was gradual over the entire trunk in tree A up to May 25 , the greatest increase being main- tained in the middle region . Similar conditions ...
Page 293
... trunk . Food supply may be a factor in stimulating the cambium of the trunk to diameter increase , before there is develop- ment in the branches . It is not possible to state the influence of food supply . Controlled experimental work ...
... trunk . Food supply may be a factor in stimulating the cambium of the trunk to diameter increase , before there is develop- ment in the branches . It is not possible to state the influence of food supply . Controlled experimental work ...
Contents
The Huron River valley | 402 |
their development and ecological conditions | 360 |
The bogplant societies | 429 |
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2d whorl 4th whorl abundant acidity Alnus aments apex apical shoot Aronia average basin bast fibers Betula bog areas bog plants bog societies bog water branches cambial activity cambium cassandra conifers creosote crystals cutting depressions diameter increase Dicotyledonous drainage drained factors Fagales fiber bundles foliar ray forest formation genera glacial growth habitats HARTIG heartwood hickory Huron June lake larch Larix layers leaves lobes lower mature Michigan moraine occur parenchyma parenchyma cells peat perianth periderm phloem pine Pinus piñon Pinus rigida pith rays plant societies Platanus plates present Quercus radial region resin canals roots rows Salix sapwood scattered sclerenchyma sclerotic sedge shrubs sieve tubes soil species specimens sphagnum stem stone cells substratum surface swamp tamarack temperature thick tissue tracheids trees trunk twigs tyloses undrained uniseriate rays vegetation vessels Viola blanda walls white oak wood xerophilous xylem zone