Download or read book Effects of Stratification and Temperature on Seed Germination Speed and Uniformity in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws Classic Reprint written by John C. Weber and published by Forgotten Books. This book was released on 2018-08-30 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effects of Stratification and Temperature on Seed Germination Speed and Uniformity in Central Oregon Ponderosa Pine (Pinus Ponderosa Dougl. Ex Laws.) Germinated seeds were counted on a variable schedule, beginning after 1 day and ending after 80 days in the germinator. Seeds were considered to have germinated when their radicle appeared millimeter long. Counts were more frequent at the beginning of the incubation period when germination was peaking; nearly half of the 50 total counts were made in the first week. Some seeds germinated during the 120 day stratification period, and they were included in the first count. Seeds destroyed by fungi were recorded and removed. Ungerminated seeds were cut open at the end of incubation; full seeds, considered potentially viable, and fungi-infected seeds were counted. The mean and standard deviation of embryo development rate towards germination were estimated for each seed lot by using a procedure suggested by Campbell and Sorensen Rate is the reciprocal of days to germination if a seed requires, for example, 4 days to germinate, its embryo development rate is units per day. Mean rate is the reciprocal of days to 50 percent germination, and standard deviation of rate is the standard deviation around mean rate. We analyzed germina tion data on the rate scale rather than the day scale because the distribution was closer to normal on the rate scale. 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.
Download or read book Effects of Stratification and Temperature on Seed Germination Speed and Uniformity in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws written by John C. Weber and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Stratification and Temperature on Seed Germination Speed and Uniformity in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws written by and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Stratification and Temperature on Seed Germination Speed and Uniformity in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws written by Donald F. Flora and published by . This book was released on 1990 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Stratification and Temperature on Seed Germination Speed and Uniformity in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws written by John C. Weber and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Stratification and Temperature on Seed Germination and Uniformity in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws written by J. C. Weber and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geographic Variation in Speed of Seed Germination in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws Classic Reprint written by John C. Weber and published by Forgotten Books. This book was released on 2018-09-11 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Geographic Variation in Speed of Seed Germination in Central Oregon Ponderosa Pine (Pinus Ponderosa Dougl. Ex Laws) Keywords: Geographic variation, seed germination, ponderosa pine, adaptation, drought, central Oregon. 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.
Download or read book Research Paper PNW written by and published by . This book was released on 1978 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in Central Oregon written by Frank C. Sorensen and published by . This book was released on 1994 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geographic Variation in Speed of Seed Germination in Central Oregon Ponderosa Pine Pinus Ponderosa Dougl Ex Laws written by John C. Weber and published by . This book was released on 1992 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Research Note PNW written by and published by . This book was released on 1988 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Storage Temperature on Germination of Seeds of Twenty Sources of Ponderosa Pine written by David F. Van Haverbeke and published by . This book was released on 1989 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stratification Requirements for Germination of Western Larch Larix Occidentalis Nutt Seed written by Frank C. Sorensen and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book National Proceedings written by and published by . This book was released on 2006 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compilation of 24 papers that were presented at the regional meetings of the forest and conservation nursery associations in the United States in 2005. The Western Forest and Conservation Nursery Association meeting was held at the Yarrow Resort Hotel and Conference Center in Park City, UT, on July 18 to 20. The meeting was hosted by the Utah Division of Forestry, Fire, and State Land , Lone Peak Nursery. Morning technical sessions were followed by field trips to restoration projects on the middle reach of the Provo River, McAffee Hill, and Dry Canyon, as well as tours of the Swaner Nature Preserve outside Park City, UT. Subject matter for the technical sessions included restoration outplanting, native species propagation, bareroot and container nursery culturing, greenhouse management, and gene conservation.
