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Full-Text Articles in Life Sciences
Tb61: Properties Of Plantation Grown Red Pine Related To Its Utilization, James E. Shottafer, Norman P. Kutscha, Richard A. Hale
Tb61: Properties Of Plantation Grown Red Pine Related To Its Utilization, James E. Shottafer, Norman P. Kutscha, Richard A. Hale
Technical Bulletins
This report describes a study that was conducted to evaluate the static bending and compression parallel to the grain properties evident within and among material from 19 plantation-grown red pine trees, and to determine what effect position in the tree, latewood percentage, fibril angle, specific gravity and rate of growth might have on these mechanical properties. The second phase of the study was conducted concurrently with the first to determine what effect position in the tree and specific gravity might have on the characteristics of red pine Kraft pulp. A third investigation evaluated the effect of three dry kiln schedules …
Tb53: The Suitability Of Certain Stains For Studying Lignification In Balsam Fir, Abies Balsamea (L.) Mill, Norman Kutscha, James R. Gray
Tb53: The Suitability Of Certain Stains For Studying Lignification In Balsam Fir, Abies Balsamea (L.) Mill, Norman Kutscha, James R. Gray
Technical Bulletins
An investigation was conducted to examine the suitability of ten staining reactions for studying lignification in balsam fir, Abies balsamea (L.) Mill. Two experiments were carried out on material collected on two different dates. In each experiment slides of fresh, FAA-killed and FAA-killed celloldin-embedded material of normal and compression wood were stained and evaluated.
Tb47: The Relationship Of Fibril Angle To Certain Factors In Plantation-Grown Red Pine, R. S. Shumway, Norman P. Kutscha, J. E. Shottafer
Tb47: The Relationship Of Fibril Angle To Certain Factors In Plantation-Grown Red Pine, R. S. Shumway, Norman P. Kutscha, J. E. Shottafer
Technical Bulletins
The purpose of this study was to make an estimate of the average ring fibril angle within the stem of 48-year old plantation-grown red pine (Pinus resinosa, Ait.). It was also conducted to determine the degreed relationship between this estimated average ring fibril angle and various factors such as position in the tree, latewood percent, specific gravity, and growth rate.
Tb45: Foreign Woods Utilized In Maine, Norman P. Kutscha, L. L. Emery
Tb45: Foreign Woods Utilized In Maine, Norman P. Kutscha, L. L. Emery
Technical Bulletins
The purpose of this study was to (a) evaluate the extent to which foreign woods are used in the state of Maine, (b) to see if any problems exist in the use of these woods, (c) to compile information on the characteristics of the species used and provide this information to the users by supplying them with a copy of this bulletin, and (d) to provide for a better understanding of the significance of foreign wood use in the state.
Tb41: The Potential Of Lignin Research, Norman P. Kutscha, James R. Gray
Tb41: The Potential Of Lignin Research, Norman P. Kutscha, James R. Gray
Technical Bulletins
Lignin constitutes a vast natural resource, which can be found in various forms depending on where it is obtained and how it is isolated. To most easily isolate lignin, we must understand more thoroughly its chemical structure and how it is bound to the other wall components. To use lignin more effectively and develop new uses for it, we must understand its properties. Likewise, the most effective use of lignin-containing materials such as wood and wood products depends on understanding how their properties are affected by the properties of lignin.
Tb28: Weight, Nutrient Element And Productivity Studies Of Seedlings And Saplings Of Eight Tree Species In Natural Ecosystems, Harold E. Young, Paul M. Carpenter
Tb28: Weight, Nutrient Element And Productivity Studies Of Seedlings And Saplings Of Eight Tree Species In Natural Ecosystems, Harold E. Young, Paul M. Carpenter
Technical Bulletins
The objective of this study was to obtain weight and nutrient element information on complete trees ranging from 1 to 35 ft in height above ground for the same eight species (red spruce, balsam fir, white pine, hemlock, northern white cedar, white birch, red maple and aspen) as a downward extension in size classes.
Tb27: Fresh And Dry Weight, Nutrient Elements And Pulping Characteristics Of Northern White Cedar, Thuja Occidentalis, Richard F. Dyer
Tb27: Fresh And Dry Weight, Nutrient Elements And Pulping Characteristics Of Northern White Cedar, Thuja Occidentalis, Richard F. Dyer
Technical Bulletins
Northern white cedar was selected as an eighth species for complete tree investigation of weight, nutrient elements and pulping characteristics because it comprises approximately 13% of the total softwood growing stock in Maine, but only amounts to about 2% of the total softwood timber cut for all purposes. It is hoped that the information in this bulletin will provide basic information permitting northern white cedar to become a more meaningful segment of the Maine forest economy.
Tb12: Preliminary Fresh And Dry Weight Tables For Seven Tree Species In Maine, Harold E. Young, Lars Strand, Russell Altenberger
Tb12: Preliminary Fresh And Dry Weight Tables For Seven Tree Species In Maine, Harold E. Young, Lars Strand, Russell Altenberger
Technical Bulletins
The studies on which the tables in this publication were based establish that data on the complete tree can be obtained by employing modern harvesting equipment thus eliminating a problem of measurement that has been impossible or difficult for hundreds of years. The tables in this publication are based on a limited amount of data obtained in a small area. However, these indicate the method and they can be useful guides for professional foresters and helpful to research workers who are seeking improved techniques for biological investigations such as site productivity. They are a beginning in an approach to a …