Pamphlets on Forestry, Volume 41991 |
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Page 273
... trees experimented upon is given as 45 years . He found that the formation of leaves was coincident with the begin- ning of diameter increase . The beginning of this increase was close to April 25 , during the four years . He found a ...
... trees experimented upon is given as 45 years . He found that the formation of leaves was coincident with the begin- ning of diameter increase . The beginning of this increase was close to April 25 , during the four years . He found a ...
Page 392
... tree III as early as April 15. Cuttings taken from trees IV and V at the same date . likewise showed evidence of cambial activity . While there was no satisfactory evidence obtained the previous year as regards cambial awakening , since ...
... tree III as early as April 15. Cuttings taken from trees IV and V at the same date . likewise showed evidence of cambial activity . While there was no satisfactory evidence obtained the previous year as regards cambial awakening , since ...
Page 402
... trees reach a maximum height of 12 to 13.7m ( 40 to 45 feet ) and a diameter of 60 to 75cm ( 2 to 2.5 feet ) at ... trees in the open have a very short clear length and a fairly regular globular or egg- shaped crown . If grown in stands ...
... trees reach a maximum height of 12 to 13.7m ( 40 to 45 feet ) and a diameter of 60 to 75cm ( 2 to 2.5 feet ) at ... trees in the open have a very short clear length and a fairly regular globular or egg- shaped crown . If grown in stands ...
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 piƱon 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