Pamphlets on Forestry, Volume 41991 |
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Page 283
... branches . The investigation was made with the object of answering the three following questions : ( 1 ) Does inception of diameter increase begin first in the topmost branches , in the middle , or in the basal , branches ? ( 2 ) In ...
... branches . The investigation was made with the object of answering the three following questions : ( 1 ) Does inception of diameter increase begin first in the topmost branches , in the middle , or in the basal , branches ? ( 2 ) In ...
Page 287
... branches . TABLE X AVERAGE DIAMETER INCREASE OF XYLEM AT APEX , MIDDLE , AND BASE OF ALL LATERAL Region of cutting Apical . BRANCHES Diameter increase of xylem 20.8 μ 7.5 μ Middle . Basal . 2.5 μ From previous results it was expected ...
... branches . TABLE X AVERAGE DIAMETER INCREASE OF XYLEM AT APEX , MIDDLE , AND BASE OF ALL LATERAL Region of cutting Apical . BRANCHES Diameter increase of xylem 20.8 μ 7.5 μ Middle . Basal . 2.5 μ From previous results it was expected ...
Page 288
... branches . The average diameter increase of xylem in all the branches was by May 22 only 10.7 μ , and the average number of cells in the new xylem layer only 0.62 . The greatest diameter increase in the branches was only 37 μ , while ...
... branches . The average diameter increase of xylem in all the branches was by May 22 only 10.7 μ , and the average number of cells in the new xylem layer only 0.62 . The greatest diameter increase in the branches was only 37 μ , while ...
Contents
The Huron River valley | 402 |
their development and ecological conditions | 360 |
The bogplant societies | 429 |
4 other sections not shown
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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