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The Genetic Structure Of Sympatric Populations Of Blue And Engelmann Spruce
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Book Synopsis The Genetic Structure of Sympatric Populations of Blue and Engelmann Spruce by : Peter Robert Schaefer
Download or read book The Genetic Structure of Sympatric Populations of Blue and Engelmann Spruce written by Peter Robert Schaefer and published by . This book was released on 1983 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variation in Blue Spruce by : David F. Van Haverbeke
Download or read book Genetic Variation in Blue Spruce written by David F. Van Haverbeke and published by . This book was released on 1984 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyses of 43 blue spruce populations at age 12 (9 years in the field) revealed significant differences among populations for survival, height, vigor, crown diameter, frost injury, and foliage color. Use of regions increases the probability of locating better seeds sources, but high variability among individual populations within regions limits their value in specifying where better seed sources can be collected. Phenotypes should be selected in best stands within regions.
Book Synopsis Genetics of Engelmann Spruce by : Donald Paige Fowler
Download or read book Genetics of Engelmann Spruce written by Donald Paige Fowler and published by . This book was released on 1977 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetics of Blue Spruce by : James W. Hanover
Download or read book Genetics of Blue Spruce written by James W. Hanover and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variation of Morphological and Physiological Traits in Blue and Engelmann Spruce by : George Philip Buchert
Download or read book Genetic Variation of Morphological and Physiological Traits in Blue and Engelmann Spruce written by George Philip Buchert and published by . This book was released on 1981 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Population Genetic Structure of Picea Engelmannii, P. Glauca and Their Previously Unrecognized Hybrids in the Central Rocky Mountains by : Monia S. H. Haselhorst
Download or read book Population Genetic Structure of Picea Engelmannii, P. Glauca and Their Previously Unrecognized Hybrids in the Central Rocky Mountains written by Monia S. H. Haselhorst and published by . This book was released on 2013 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Areas of geographic overlap between potentially hybridizing species provide the opportunity to study interspecific gene flow and reproductive barriers. Here we identified hybrids between Picea engelmannii and P. glauca by their genetic composition at 17 microsatellite markers, and determined the broad-scale geographic distribution of hybrids in the central Rocky Mountains of North America, a geographic region where hybrids and isolation between species had not previously been studied. Parameter estimates from admixture models revealed considerable variation in ancestry within and among collection sites, suggesting that within this area of geographic overlap, the interaction of the two species varies extensively. The results document a previously unrecognized patchy distribution of hybrids between P. engelmannii and P. glauca, including locations where hybrids were not known or expected to exist. Further, the ancestry of many hybrids was consistent with multiple generations of hybridization, with probable directional backcrossing to P. engelmannii, suggesting a relatively porous species boundary. The identification and characterization of hybridization between these spruce in this region raises the question of what factors maintain barriers to gene flow in these long-lived forest trees. The current research lays the groundwork for future study of the ecological and evolutionary contexts of their hybridization, as well as of differential introgression and permeability of species boundaries.
Book Synopsis Natural Hybridization Between Engelmann and Blue Spruce in Southwestern Colorado by : Andrew Joseph David
Download or read book Natural Hybridization Between Engelmann and Blue Spruce in Southwestern Colorado written by Andrew Joseph David and published by . This book was released on 1996 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interspecific and Intraspecific Variation in Picea Engelmannii and Its Congeneric Cohorts by : G. E. Rehfeldt
Download or read book Interspecific and Intraspecific Variation in Picea Engelmannii and Its Congeneric Cohorts written by G. E. Rehfeldt and published by . This book was released on 2004 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of common garden studies of 336 populations representing Picea engelmannii, P. pungens, P. glauca, P. mexicana, and P. chihuahuana provided as many as 13 growth and morphologic characters pertinent to biosystematics and genecology. Canonical discriminant analyses discretely segregated populations of P. pungens and P. chihuahuana while positioning P. engelmannii populations along a continuum anchored by Southwestern United States populations at one extreme and those classified as hybrids of P.engelmannii with P. glauca on the other. A population of P. mexicana was closely aligned with Southwest populations of P. engelmannii, while populations of P. glauca were intermixed with and peripheral to those identified as hybrid. While consistent with most taxonomic treatments of these taxa, the analyses nonetheless suggested that Southwestern United States populations should be considered as a variety of P. engelmannii that most likely should include P. mexicana. Genecological analyses detected ample genetic variation among the 295 populations in the P. engelmannii complex. The analyses demonstrated that populations were distributed along clines driven primarily by the winter temperature regime of the provenance. For northern populations, summer temperatures also became a key factor in accounting for genetic differences among populations. Analyses also detected clines for the 19 P. pungens and 23 P. glauca populations. An assessment of the effects of global warming according to the IS92a scenario of two general circulation models demonstrated for the current century: (1) an increasingly favorable climate for P. pungrens as its distribution moves upward in elevation throughout much of the Great Basin, Colorado Rockies, and mountain islands of the Southwest; (2) a widespread reduction in the areal extent of P. engelmannii in the inland Northwestern United States to the extent that Picea may become rare in the local flora; (3) extirpation of P. glauca from the Black Hills and Cypress Hills; and (4) a widespread redistribution of genotypes across the landscape as contemporary populations adjust genetically to change.
Book Synopsis Genetic Variation in Blue Spruce: A Test of Populations in Nebraska (Classic Reprint) by : David F. van Haverbeke
Download or read book Genetic Variation in Blue Spruce: A Test of Populations in Nebraska (Classic Reprint) written by David F. van Haverbeke and published by Forgotten Books. This book was released on 2018-09-14 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Genetic Variation in Blue Spruce: A Test of Populations in Nebraska The Great Plains is a region with few native ever green species. One of the objectives of tree improvement research in this region is to introduce, test, and identify adapted seed sources of coniferous species for use in Great Plains windbreak, environmental improvement and esthetic plantings. Blue spruce (picea pungens because of its desirable foliage color and symmetry, is a highly valued species in the northern half of the United States and in Canada for landscaping and Christmas tree production. Because it is cold-hardy, drought-resistant, and long lived, blue spruce is also a desirable species for use in shelterbelt plantings, especially in the eastern part of the central and northern Great Plains and in the Prairie Provinces of Canada. Identification of blue spruce seed sources that are adapted to particular planting sites would increase the number of evergreen species suit able for planting in the North American prairie-plains. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Forestry Theses Accepted by Colleges and Universities in the United States, July 1981-June 1990 by :
Download or read book Forestry Theses Accepted by Colleges and Universities in the United States, July 1981-June 1990 written by and published by . This book was released on 1994 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis How to tell Engelmann from blue spruce in the Southwest by : John R. Jones
Download or read book How to tell Engelmann from blue spruce in the Southwest written by John R. Jones and published by . This book was released on 1977 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forestry Theses Accepted by Colleges and Universities in the United States by :
Download or read book Forestry Theses Accepted by Colleges and Universities in the United States written by and published by . This book was released on 1981 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mating Systems and Population Structure in Engelmann Spruce and Subalpine Fir by : Kathleen Louise Shea
Download or read book Mating Systems and Population Structure in Engelmann Spruce and Subalpine Fir written by Kathleen Louise Shea and published by . This book was released on 1985 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Michigan Academician written by and published by . This book was released on 1984 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variation in Blue Spruce by : David F. Van Haverbeke
Download or read book Genetic Variation in Blue Spruce written by David F. Van Haverbeke and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic and Morphological Relationships Between Blue Spruce, Picea Pungens, and Engelman Spruce, Picea Engelmannii, in the Colorado Front Range by : J. R. Mitton
Download or read book Genetic and Morphological Relationships Between Blue Spruce, Picea Pungens, and Engelman Spruce, Picea Engelmannii, in the Colorado Front Range written by J. R. Mitton and published by . This book was released on 1981 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: