scholarly journals Native woody plants of the United States : their erosion-control and wildlife values /

1938 ◽  
Author(s):  
William Richard Van Dersal ◽  
Furman Lloyd Mulford ◽  
C. w. Thornthwaite ◽  
Keyword(s):  
United States ◽  
Woody Plants ◽  
Erosion Control ◽  
The United States

scholarly journals Native woody plants of the United States : their erosion-control and wildlife values /

1939 ◽  
Author(s):  
William Richard Van Dersal ◽  
Furman Lloyd Mulford ◽  
C. w. Thornthwaite
Keyword(s):  
United States ◽  
Woody Plants ◽  
Erosion Control ◽  
The United States

scholarly journals Native woody plants of the United States, their erosion-control and wildlife values.

1938 ◽  
Author(s):  
William Richard Van Dersal ◽  
Furman Lloyd Mulford ◽  
Charles Warren Thornthwaite ◽  
Keyword(s):  
United States ◽  
Woody Plants ◽  
Erosion Control ◽  
The United States

scholarly journals Nonpathogenic Isolates of the Citrus Black Spot Fungus, Guignardia citricarpa, Identified as a Cosmopolitan Endophyte of Woody Plants, G. mangiferae (Phyllosticta capitalensis)

2002 ◽  
Vol 92 (5) ◽  
pp. 464-477 ◽  
Author(s):  
R. P. Baayen ◽  
P. J. M. Bonants ◽  
G. Verkley ◽  
G. C. Carroll ◽  
H. A. van der Aa ◽  
...  
Keyword(s):  
United States ◽  
European Union ◽  
Woody Plants ◽  
Black Spot ◽  
The United States ◽  
The European Union ◽  
Citrus Fruits ◽  
Citrus Black Spot ◽  
Group I ◽  
Group Ii

The population structure of Guignardia citricarpa sensu lato (anamorph: Phyllosticta citricarpa), a fungus of which strains pathogenic to citrus are subject to phytosanitary legislation in the European Union and the United States, was investigated. Internal transcribed spacer sequences revealed two phylogenetically distinct groups in G. citricarpa. This distinction was supported by amplified fragment length polymorphism analysis that also supported the exclusion of two isolates that had apparently been misclassified as G. citricarpa. On cherry decoction agar, but not on other media, growth rates of group I isolates were lower than those of group II isolates. Conidial dimensions were similar, but group I isolates formed conidia with barely visible mucoid sheaths, whereas those of group II formed conidia with thick sheaths. Cultures of isolates belonging to group I produced rare infertile perithecia, whereas fertile perithecia were formed by most isolates of group II. Colonies of isolates belonging to group I were less dark than those of group II, with a wider translucent outer zone and a lobate rather than entire margin. On oatmeal agar, exclusively group I isolates formed a yellow pigment. Group I harbored strains from citrus fruits with classical black spot lesions (1 to 10 mm in diameter) usually containing pycnidia. Group II harbored endophytic strains from a wide range of host species, as well as strains from symptomless citrus fruits or fruits with minute spots (<2-mm diameter) without pycnidia. These observations support the historic distinction between slowly growing pathogenic isolates and morphologically similar fast-growing, nonpathogenic isolates of G. citricarpa. The latter proved to belong to G. mangiferae (P. capitalensis), a ubiquitous endophyte of woody plants with numerous probable synonyms including G. endophyllicola, G. psidii, P. anacardiacearum, and P. theacearum. G. mangiferae occurs in the European Union and the United States on many host species including citrus, and does not cause symptoms of citrus black spot, justifying its exclusion from quarantine measures.

Investigation Into the Utilization of Peanut Fibers in Nonwovens

2003 ◽  
Author(s):  
Nicole Bieak ◽  
Brian R. George
Keyword(s):  
United States ◽  
Thermal Insulation ◽  
Erosion Control ◽  
The United States ◽  
Food Crops ◽  
Light Penetration ◽  
Nonwoven Fabrics ◽  
United States Today ◽  
Peanut Production

Peanuts are one of the leading food crops produced in the United States today. One of the problems of peanut production is disposal of the shells, or hulls, of the peanut, which are generally landfilled. The current research focused on obtaining fibers from the shells, characterizing them, and creating nonwoven fabrics containing these fibers, which were also characterized. The fibers obtained ranged in length from 0.6 cm to 6.3 cm, and were generally stiff. Wet laid nonwovens were produced and a variety of bonding methods such as needlepunching and latex bonding were performed. Latex bonding gave the best results, and the resulting fabrics were characterized in terms of strength, moisture, and light penetration, and thermal insulation capability. The fabrics had similar light and moisture penetration properties as some commercially available erosion control fabrics and thus may be suitable for this purpose. The fabrics also retained some heat, and may be suitable for insulation purpose.

scholarly journals DEVELOPMENT OF DESIGN CRITERIA FOR SEGMENTED BREAKWATERS

1986 ◽  
Vol 1 (20) ◽  
pp. 158 ◽  
Author(s):  
Joan Pope ◽  
Julie L. Dean
Keyword(s):  
United States ◽  
Erosion Control ◽  
The United States ◽  
Beach Erosion ◽  
Design Criteria

This paper will discuss experience and approaches to the use of segmented breakwaters for beach erosion control in the United States. Several prototype cases are examined and generalizations drawn concerning the resultant beach response. This experience is further evaluated in order to develop a preliminary approach for developing design criteria.

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