scholarly journals Growth patterns of forest stands - the response towards pollutants and climatic impact

2009 ◽  
Vol 2 (1) ◽  
pp. 4-6 ◽  
Author(s):  
W Beck
Keyword(s):  
Growth Patterns ◽  
Forest Stands ◽  
Climatic Impact

scholarly journals Frost Damage in Poplar on the Prairies

1976 ◽  
Vol 52 (2) ◽  
pp. 61-64 ◽  
Author(s):  
Harry Zalasky
Keyword(s):  
Low Temperature ◽  
Frost Damage ◽  
Growth Patterns ◽  
Forest Stands ◽  
Clear Cut ◽  
Mature Forest ◽  
Abscission Layers ◽  
Increment Growth ◽  
Poplar Tree

Frost cankers in poplar are freeze-killed areas of bark and wood around which woody calluses develop and form burls and frost ribs. Frost dieback is a freeze-killed segment of the stem at the base, tip, or mid-portion of a branch or leader. It may or may not enhance natural pruning of poplar branches depending on whether the basal parts are damaged or alive and able to form abscission layers. In addition to abscission, low temperature affects increment, growth patterns, and vigor of poplar. Tree become stunted from persistent leader dieback. Suckers, crooks, and sweeps also characterize many stands of poplar. These characteristics of frost damage in mature forest stands are valuable in assessing the hazard of frost if the stands are to be clear-cut and reforested. The effects of frost damage are controlled somewhat in amenity, parks, and recreational areas because pruning is necessary to prevent wind breakage of staghead and frost-cankered trees.

Diagnostic Value of Electron Microscopy in Soft Tissue Tumors

1970 ◽  
Vol 28 ◽  
pp. 220-221
Author(s):  
Gerald Fine ◽  
Azorides R. Morales
Keyword(s):  
Cardiac Myxoma ◽  
Osteogenic Sarcoma ◽  
Diagnostic Value ◽  
Soft Tissue Tumors ◽  
Amelanotic Melanoma ◽  
Growth Patterns ◽  
Light Microscopic Level ◽  
Mesenchymal Tumors ◽  
Good Agreement

For years the separation of carcinoma and sarcoma and the subclassification of sarcomas has been based on the appearance of the tumor cells and their microscopic growth pattern and information derived from certain histochemical and special stains. Although this method of study has produced good agreement among pathologists in the separation of carcinoma from sarcoma, it has given less uniform results in the subclassification of sarcomas. There remain examples of neoplasms of different histogenesis, the classification of which is questionable because of similar cytologic and growth patterns at the light microscopic level; i.e. amelanotic melanoma versus carcinoma and occasionally sarcoma, sarcomas with an epithelial pattern of growth simulating carcinoma, histologically similar mesenchymal tumors of different histogenesis (histiocytoma versus rhabdomyosarcoma, lytic osteogenic sarcoma versus rhabdomyosarcoma), and myxomatous mesenchymal tumors of diverse histogenesis (myxoid rhabdo and liposarcomas, cardiac myxoma, myxoid neurofibroma, etc.)

Episodic whole plant growth patterns in Ligustrum

1993 ◽  
Vol 89 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Jeff S. Kuehny ◽  
Mary C. Halbrooks
Keyword(s):  
Plant Growth ◽  
Growth Patterns ◽  
Whole Plant

Larval Behavior and Protective Implications for Sea Scallops and Surf Clams within the Middle Atlantic Bight: Part Two, Variability of Physical Environment and Larval Behaviors

2019 ◽  
Vol 2 (2) ◽  
Keyword(s):  
Physical Environment ◽  
Climate Changes ◽  
Larval Growth ◽  
Growth Patterns ◽  
Larval Behavior ◽  
Larval Release ◽  
Physical Conditions ◽  
Climatic Variations ◽  
Middle Atlantic ◽  
Sea Scallops

Larval growth and settlement rates are important larval behaviors for larval protections. The variability of larval growthsettlement rates and physical conditions for 2006-2012 and in the future with potential climate changes was studied using the coupling ROMS-IMBs, and new temperature and current indexes. Forty-four experimental cases were conducted for larval growth patterns and release mechanisms, showing the spatial, seasonal, annual, and climatic variations of larval growthsettlement rates and physical conditions, demonstrating that the slight different larval temperature-adaption and larval release strategies made difference in larval growth-settlement rates, and displaying that larval growth and settlement rates highly depended upon physical conditions and were vulnerable to climate changes.

Measurement and interpretation of growth patterns in chrysoberyl, including alexandrite

2011 ◽  
Vol 32 (5) ◽  
pp. 129-144
Author(s):  
Karl Schmetzer ◽  
Heinz-Jürgen Bernhardt ◽  
Thomas Hainschwang
Keyword(s):  
Growth Patterns
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