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Survival And Growth Of Douglas Fir Seed Sources In The Hospital Tract Rangewide Source Archive Plantation
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Book Synopsis Survival and Growth of Douglas-fir Seed Sources in the Hospital Tract Rangewide Source Archive Plantation by : William E. Gamble
Download or read book Survival and Growth of Douglas-fir Seed Sources in the Hospital Tract Rangewide Source Archive Plantation written by William E. Gamble and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In 1954, Dr. Helge Irgens-Moller initiated a rangewide collection of seed and seedlings of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). Nearly 700 trees or stands were sampled in 10 western states, Canada, and Mexico. From 1957 to 1971, 639 of these collections were planted in the Hospital Tract Rangewide Source Archive near Corvallis, Oregon. By 1989, the trees were from 20 to 34 years old; it became apparent that thinning the archive would be necessary in order to preserve the slower growing sources. This prompted growth and survival measurements and a complete inventory of the archive. Overall survival for all years of planting was greater than 80 percent for coastal sources (var. menziesii), but less than 60 percent for interior sources (var. glauca). The average diameter at breast height (DBH) of surviving trees was 29.05 cm; the range was from 1.2 to 61 cm. An analysis of the 1957 and 1961 plantings revealed that local and other low elevation coastal sources had the fastest growth and highest survival in the archive. High elevation sources from the Cascade Range had significantly smaller DBH, but higher survival. Southern interior sources from Arizona and New Mexico had the smallest DBH and lowest survival; northern interior sources from Montana and Idaho were intermediate in survival and DBH. Geographical variation among sources in the Hospital Tract was associated with environmental gradients, supporting the previously held conclusion that much of the genetic variation on a geographical scale in Douglas-fir is the result of adaptation."--Summary.
Book Synopsis Plant Breeding Reviews, Volume 27 by : Jules Janick
Download or read book Plant Breeding Reviews, Volume 27 written by Jules Janick and published by John Wiley & Sons. This book was released on 2010-04-07 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Breeding Reviews presents state-of-the-art reviews on plant genetics and the breeding of all types of crops by both traditional means and molecular methods. Many of the crops widely grown today stem from a very narrow genetic base; understanding and preserving crop genetic resources is vital to the security of food systems worldwide. The emphasis of the series is on methodology, a fundamental understanding of crop genetics, and applications to major crops. It is a serial title that appears in the form of one or two volumes per year.
Download or read book Research Contribution written by and published by . This book was released on 1993 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1998 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biennial Bibliography ... by : Oregon State University. Forest Research Laboratory
Download or read book Biennial Bibliography ... written by Oregon State University. Forest Research Laboratory and published by . This book was released on 1994 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phylogeography of Southern European Refugia by : Steven Weiss
Download or read book Phylogeography of Southern European Refugia written by Steven Weiss and published by Springer Science & Business Media. This book was released on 2007-06-04 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first synthesis of the remarkable diversity, evolutionary complexity, and conservation importance of the flora and fauna in the Mediterranean region, with emphasis on the three major peninsular refugia. The book highlights biodiversity importance in Southern Europe for European biota conservation, and includes chapters from authorities in phylogeography: John Avise, Remy Petit, Ettore Randi.
Book Synopsis Field Survival and Growth of Douglas-fir by Age and Size of Nursery Stock by : James W. Edgren
Download or read book Field Survival and Growth of Douglas-fir by Age and Size of Nursery Stock written by James W. Edgren and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tapping the Pines by : Robert B. Outland III
Download or read book Tapping the Pines written by Robert B. Outland III and published by LSU Press. This book was released on 2004-12-01 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extraction of raw turpentine and tar from the southern longleaf pine—along with the manufacture of derivative products such as spirits of turpentine and rosin—constitutes what was once the largest industry in North Carolina and one of the most important in the South: naval stores production. In a pathbreaking study that seamlessly weaves together business, environmental, labor, and social history, Robert B. Outland III offers the first complete account of this sizable though little-understood sector of the southern economy. Outland traces the South’s naval stores industry from its colonial origins to the mid-twentieth century, when it was supplanted by the rising chemicals industry. A horror for workers and a scourge to the Southeast’s pine forests, the methods and consequences of this expansive enterprise remained virtually unchanged for more than two centuries. With its exacting attention to detail and exhaustive research, Tapping the Pines is an essential volume for anyone interested in the piney woods South.
Book Synopsis Latin American Monographs by : Gustavo A. Antonini
Download or read book Latin American Monographs written by Gustavo A. Antonini and published by . This book was released on 1957 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Douglas-fir Survival and Growth in Response to Spring Planting Date and Depth by : R. O. Strothmann
Download or read book Douglas-fir Survival and Growth in Response to Spring Planting Date and Depth written by R. O. Strothmann and published by . This book was released on 1971 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pokeweed (Phytolacca Americana) by : Arnold Krochmal
Download or read book Pokeweed (Phytolacca Americana) written by Arnold Krochmal and published by . This book was released on 1970 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2Pokeweed, a plant abundant in Appalachia, exhibits some chemical similarities to a related species that has shown molluscicidal properties. Because this suggests that pokeweed, Phytolacca americana L. (P. decandra L.), has potential for controlling fresh-water snails, we have compiled this report of its chemical composition, uses, propagation methods, and other potentially useful species of the genus Phytolacca. The related species, Phytolacca dodencandra L'Her, was found to be the source of a molluscicide, which could pIay an important role in control of bilharziasis, a parasitic disease of humans widespread in Puerto Rico, Africa, and other tropical areas (22). Dead snails and small fish were observed in waterways in areas of Ethiopia where people washed their clothes with this Phytolacca's fruit, which is rich in saponins. Some distance downstream and immediately upstream from the washing places, abundant live snails were present, suggesting that the fruit contained a toxin acting as a molluscicide. This was subsequently confirmed by laboratory tests; tap-water extracts of the dried and powdered fruit had an LC100 (lethal concentration) of 10 parts per million against snails (Biomphalaria, Bulinus: and Lymnea spp.) after 24-hour exposure at 23OC. Furthermore, it was shown that molluscicidal potency was not affected by the presence of soil or vegetable matter, an important factor when the molluscicide is used under natural conditions. S3.
Book Synopsis Oregon - Washington Marine Mammal & Seabird Surveys by :
Download or read book Oregon - Washington Marine Mammal & Seabird Surveys written by and published by . This book was released on 1990 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis What Bird Is That? by : Neville William Cayley
Download or read book What Bird Is That? written by Neville William Cayley and published by . This book was released on 2011 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neville Cayley's What Bird is That? is Australia's most popular bird-identification guide. This comprehensive and authoritative field guide, now in its second edition, has been fully revised and updated by prominent ornithologist Terence Lindsey, who has added more than 30 new species and included additional information on identification and breeding. Each bird is illustrated in full colour.
Download or read book Import Risk Analysis written by and published by . This book was released on 2007 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ministry of Agriculture and Forestry has evaluated the risks posed by the importation of vehicles and machinery.
Book Synopsis Precision and Purpose by : Karl P. Mueller
Download or read book Precision and Purpose written by Karl P. Mueller and published by Rand Corporation. This book was released on 2015-07-08 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between March and October 2011, a coalition of North Atlantic Treaty Organization (NATO) member states and several partner nations waged a war against Muammar Qaddafi's Libyan regime that stemmed and then reversed the tide of Libya's civil war, preventing Qaddafi from crushing the nascent rebel movement seeking to overthrow his dictatorship and going on to enable opposition forces to prevail. The central element of this intervention was a relatively small multinational force's air campaign operating from NATO bases in several countries, as well as from a handful of aircraft carriers and amphibious ships in the Mediterranean Sea. The study details each country's contribution to that air campaign, examining such issues as the limits of airpower and coordination among nations. It also explores whether the Libyan experience offers a potential model for the future.
Book Synopsis Natural Resource Conservation by : Oliver S. Owen
Download or read book Natural Resource Conservation written by Oliver S. Owen and published by . This book was released on 1998 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text emphasizes the ecological principles, policies, and practices to managage a sustainable future. It is a comprehensive text offering a scientifically thorough survey of natural resource and environmental issues with an emphasis on practical, cost-effective, and sustainable solutions.
Book Synopsis Soil Survey of Marin County, California by : James H. Kashiwagi
Download or read book Soil Survey of Marin County, California written by James H. Kashiwagi and published by . This book was released on 1985 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
