Propagation protocol for Rocky Mountain juniper (Juniperus scopulorum Sarg.)

2013 ◽  
Vol 14 (2) ◽  
pp. 85-88
Author(s):  
D. J. Regan ◽  
K. J. Woodruff ◽  
A. S. Davis
Keyword(s):  
Rocky Mountain ◽  
Juniperus Scopulorum

Notes on the Juniper Berry Mite, Trisetacus quadrisetus (Thomas) (Acarina: Eriophyidae), in British Columbia

1960 ◽  
Vol 92 (8) ◽  
pp. 608-610 ◽  
Author(s):  
C. V. G. Morgan ◽  
A. F. Hedlin
Keyword(s):  
British Columbia ◽  
Seed Production ◽  
Rocky Mountain ◽  
Vancouver Island ◽  
Indian Reserve ◽  
Juniperus Scopulorum ◽  
Forest Biology ◽  
Biology Laboratory ◽  
Heavy Infestation

The juniper berry mite, Trisetacus (Eriophyes) quadrisetus (Thomas), was unknown in Canada until 1956, when its occurrence was noted on Rocky Mountain juniper, Juniperus scopulorum Sarg., in the Tzouhalem Indian Reserve near Duncan on Vancouver Island, B.C.; it has not been found elsewhere in the Province (Fig. 1). Material was first submitted to the authors by Mr. W. G. Ziller, Forest Biology Laboratory, Victoria, B.C. Each year almost the entire crop of berries on the only two trees in the area is destroyed by the mite; these trees are 30 and 50 feet high. In 1956 and 1957, no normal berries were observed. In 1959, only four healthy berries were found amongst 715 examined from the two trees. Such a heavy infestation indicates that seed production by these trees was practically eliminated since feeding by the mite destroys the seed.

sGAS–LIQUID CHROMATOGRAPHY OF TERPENES: PART XI. THE VOLATILE OIL OF THE LEAVES OF JUNIPERUS SCOPULORUM SARG

1964 ◽  
Vol 42 (8) ◽  
pp. 1890-1895 ◽  
Author(s):  
E. von Rudloff ◽  
F. M. Couchman
Keyword(s):  
Liquid Chromatography ◽  
Ornamental Plants ◽  
Rocky Mountain ◽  
Volatile Oil ◽  
Major Constituent ◽  
Gas Liquid Chromatography ◽  
Leaf Oil ◽  
Juniperus Scopulorum

The neutral leaf oil of Rocky Mountain juniper was analyzed by gas–liquid chromatography. d-Sabinene was found to be the major constituent (45.7%) and smaller amounts of d-limonene (11.4%), d-α-pinene (4.2%), γ-terpinene (1.15%), p-cymene (1.4%), l-linalool (1.2%), d-terpinen-4-ol (2.9%), citronellol (0.2%),l-β-elemene (0.2–0.3%), three isomeric cadinenes (2.7%), l-elemol (6.0%), and safrole (1.85%) were isolated. α-Thujene, camphene, car-3-ene, myrcene, α-terpinene, terpinolene, thujone, isothujone, methyl citronellate, sabinyl acetate, sabinol, geraniol, α- and δ-cadinol, and trans-isoeugenol were tentatively identified. An unidentified acetate (II) (4.7%) was isolated from the oxygenated sesquiterpene fraction and another appears to be present in trace amounts.The composition of the oils from the leaves of four local ornamental plants was found to differ significantly from that of the wild juniper.

scholarly journals Westward Expansion by Juniperus virginiana of the Eastern United States and Intersection with Western Juniperus Species in a Novel Assemblage

Forests ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 101
Author(s):  
Brice B. Hanberry
Keyword(s):  
United States ◽  
Rocky Mountain ◽  
Juniperus Virginiana ◽  
Eastern United States ◽  
Eastern Redcedar ◽  
Usda Forest Service ◽  
Forest Inventory And Analysis ◽  
Climate Conditions ◽  
Westward Expansion ◽  
Juniperus Scopulorum

Eastern redcedar (Juniperus virginiana L.) is increasing in density in the eastern United States and expanding in range to the west, while western Juniperus species also are increasing and expanding, creating the potential for a novel assemblage. I estimated range expansion and intersection by comparing recent USDA Forest Service Forest Inventory and Analysis surveys (mean year = 2009) to the oldest available surveys (mean year = 1981), with adjustments for sampling changes, and predicted climate envelopes during the following year ranges: 1500–1599, 1800–1849, 1850–1899, 1900–1949, and 1960–1989. During approximately 28 years, eastern redcedar range expanded by about 54 million ha (based on ≥0.5% of total stems ≥12.7 cm in diameter in ecological subsections). Combined range of western species of juniper did not expand. Range intersection of eastern redcedar and western Juniperus species totaled 200,000 km2 and increased by 31,600 km2 over time, representing a novel assemblage of eastern and western species. Predicted ranges during the other time intervals were 94% to 98% of predicted area during 1960–1989, suggesting major climate conditions have been suitable for centuries. The southern western Juniperus species and Rocky Mountain juniper (Juniperus scopulorum Sarg.) have the greatest potential for intersection with eastern redcedar, whereas eastern redcedar may have concluded westward expansion.

scholarly journals Rocky Mountain Juniper Seed Source Test in Western Kansas, U.S.

2007 ◽  
Vol 33 (5) ◽  
pp. 325-329
Author(s):  
Wayne Geyer ◽  
Keith Lynch ◽  
Charles Barden
Keyword(s):  
Rocky Mountain ◽  
Simple Correlation ◽  
Analysis Techniques ◽  
Correlation And Regression Analysis ◽  
Branch Angle ◽  
Crown Density ◽  
Provenance Test ◽  
Number Of Stems ◽  
Juniperus Scopulorum ◽  
Selection Of

Twenty-six sources of Rocky Mountain juniper (Juniperus scopulorum Sarg.) were established as a provenance test near Colby, Kansas, U.S. in 1980. Height, diameter, survival, number of stems, crown density, branch angle, and vigor were evaluated with analysis of variance, cluster analysis, simple correlation, and regression analysis techniques. Source differences were found. Total height at 23 years ranged from 3.6 to 5.4 m (11.9 to 17.8 ft), diameter breast height (dbh) ranged from 5.6 to 10.4 cm (2.2 to 4.2 in), and survival from 10% to 100%. Height growth was weakly related to geographic variables, but dbh was related to latitude, longitude, and elevation. Selection of fast-growing sources may begin at 5 years after field planting.

Climate-growth relationships for Rocky Mountain juniper (Juniperus scopulorum Sarg.) on the volcanic badlands of western New Mexico, USA

2014 ◽  
Vol 32 (2) ◽  
pp. 137-143 ◽  
Author(s):  
Mark D. Spond ◽  
Saskia L. van de Gevel ◽  
Henri D. Grissino-Mayer
Keyword(s):  
New Mexico ◽  
Rocky Mountain ◽  
Juniperus Scopulorum

Mitbringsel aus den Ferien

Praxis ◽  
2005 ◽  
Vol 94 (47) ◽  
pp. 1869-1870
Author(s):  
Balestra ◽  
Nüesch
Keyword(s):  
Rocky Mountains ◽  
Spotted Fever ◽  
Rocky Mountain ◽  
Rickettsia Conorii ◽  
Rocky Mountain Spotted Fever ◽  
Klinische Diagnose ◽  
Rickettsia Rickettsii

Eine 37-jährige Patientin stellt sich nach der Rückkehr von einer Rundreise durch Nordamerika mit einem Status febrilis seit zehn Tagen und einem makulösem extremitätenbetontem Exanthem seit einem Tag vor. Bei suggestiver Klinik und Besuch der Rocky Mountains wird ein Rocky Mountain spotted fever diagnostiziert. Die Serologie für Rickettsia conorii, die mit Rickettsia rickettsii kreuzreagiert, war positiv und bestätigte die klinische Diagnose. Allerdings konnte der beweisende vierfache Titeranstieg, möglicherweise wegen spät abgenommener ersten Serologie, nicht nachgewiesen werden. Nach zweiwöchiger antibiotischer Therapie mit Doxycycline waren Status febrilis und Exanthem regredient.

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