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Author: Robert Clay Kellison
Publisher: Forgotten Books
ISBN: 9780365139799
Category : Science
Languages : en
Pages : 24
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Book Description
Excerpt from Genetics of Virginia Pine Pinus virginiana (mill), variously known as Virginia, Jersey, possum, spruce, short straw, scrub, poverty, and old field pine, is a species of contrasts. It is despised by the logger but liked by the forester and the pulp mill manager in most areas of its range. The logger's negative reaction to Virginia pine results from the tree's small size and to its persistent branching habit, factors which adversely affect harvesting production. Dominant and codominant trees average only 23 to 25 meters tall and 28 to 30 centi meters at 50 years.2 Older trees may attain heights to 35 meters and diameters to 90 centimeters (harlow and Harrar but even they often retain branches and branch stubs the length of the bole below the live crown. Despite these deterrents, the species has gained the respect of foresters because of good volume and dry-weight yields at rota tion ages of 25 to 30 years (newland 1968, nc. State Univ. And of pulp mill managers because of suitability of the fiber for fine paper and groundwood products. These attributes are responsible for a recent planting program of several thousand acres annually. Secondary uses of Virginia pine include lumber and structural timber from sawlog-sized trees, and Christmas trees which are harvested at rotation ages of 6 to 10 years. This paper reviews the current status of research on the genetics of, Virginia pine. 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.
Author: Robert Clay Kellison
Publisher: Forgotten Books
ISBN: 9780365139799
Category : Science
Languages : en
Pages : 24
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Book Description
Excerpt from Genetics of Virginia Pine Pinus virginiana (mill), variously known as Virginia, Jersey, possum, spruce, short straw, scrub, poverty, and old field pine, is a species of contrasts. It is despised by the logger but liked by the forester and the pulp mill manager in most areas of its range. The logger's negative reaction to Virginia pine results from the tree's small size and to its persistent branching habit, factors which adversely affect harvesting production. Dominant and codominant trees average only 23 to 25 meters tall and 28 to 30 centi meters at 50 years.2 Older trees may attain heights to 35 meters and diameters to 90 centimeters (harlow and Harrar but even they often retain branches and branch stubs the length of the bole below the live crown. Despite these deterrents, the species has gained the respect of foresters because of good volume and dry-weight yields at rota tion ages of 25 to 30 years (newland 1968, nc. State Univ. And of pulp mill managers because of suitability of the fiber for fine paper and groundwood products. These attributes are responsible for a recent planting program of several thousand acres annually. Secondary uses of Virginia pine include lumber and structural timber from sawlog-sized trees, and Christmas trees which are harvested at rotation ages of 6 to 10 years. This paper reviews the current status of research on the genetics of, Virginia pine. 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.
Author: Robert Clay Kellison
Publisher:
ISBN:
Category : Scrub pine
Languages : en
Pages : 16
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Book Description
Author: R. C. Kellison
Publisher:
ISBN:
Category : Scrub pine
Languages : en
Pages : 10
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Book Description
Author: T. D. Rudolph
Publisher: Forgotten Books
ISBN: 9780365794509
Category : Science
Languages : en
Pages : 72
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Book Description
Excerpt from Genetics of Jack Pine Jack pine is an important species for planting and direct seeding in the Lake States and throughout much of the boreal forest of Canada, where it is a major source of pulpwood, lumber, and round tim ber. It is highly variable in climatic adaptation, growth, and form and exhibits great genetic diversi ty of silvicultural significance. Although referred to early in the 2oth century as a frugal scrub, its cur rent high economic value, genetic variability, silvi cultural simplicity, and ability to grow on less fer tile and drier soils than are required by other sym patric species make jack pine a prime candidate for genetic improvement by selection, breeding, and controlled seed production. Jack pine is in the Subgenus Pinus, Section Pinus, and Subsection Contortae along with lodgepole pine, Virginia pine, and sand pine. 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.
Author: William Burke Critchfield
Publisher: Forgotten Books
ISBN: 9780260670281
Category : Science
Languages : en
Pages : 72
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Book Description
Excerpt from The Genetics of Lodgepole Pine Lodgepole pine is a small tree, and only recently has it been heavily utilized in its native range. In northwestern Europe, however, the ability of some seed sources to grow well on poor sites and in cold climates has interested foresters for many years, and the species is now widely planted in the British Isles and Sweden. The oldest fossils of lodgepole pine are several million years old, but there is no evidence that the species was widespread until the late Pleistocene. It was an important pioneer following glacial melting, and occupied its extensive northern range by migration from the south and possibly from far-northern refugia. Lodgepole pine has been successfully crossed with only two other species: jack pine and Virginia pine. Crossability with jack pine is moderately high, and the two species hybridize naturally in Canada. Many northern Rocky Moun tain stands have jack pine-like characteristics, but the extent of introgression from jack pine is uncertain. Lodgepole x jack hybrids are fertile, but pollen abortion is sometimes high. Hybrids of Sierra Nevada parentage have not grown well in most other environments. 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.
Author: F. Thomas Ledig
Publisher: Forgotten Books
ISBN: 9780364940877
Category : Science
Languages : en
Pages : 22
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Book Description
Excerpt from Genetics of Pitch Pine At various times, pond pine was considered a variety of pitch pine and until recently was included in standard texts as P. Rigida var. Serotina (michx.) Loud. (harlow and Harrar Clausen (1939) identified pond pine as a subspecies, P. Frigida ssp. Serotina and Smouse (1971) concurs. 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.
Author: Albert Granville Snow Jr
Publisher: Forgotten Books
ISBN: 9780365112556
Category :
Languages : en
Pages : 34
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Book Description
Excerpt from Silvical Characteristics of Virginia Pine (Pinus Virginiana) Virginia pine grows well on a wide variety of soils derived from crystalline rocks, sandstones, and shales, and, to a lesser extent, from limestone (2, After removal of the forest by cutting or fire, these soils are subject to moderate sheet and gully erosion, which may become severe on shale soils. On many areas that now support Virginia pine, much of the A horizon is gone because of past erosion under intensive agricultural use (45. 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.
Author: George Francis Brown
Publisher:
ISBN:
Category : Christmas tree growing
Languages : en
Pages : 198
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Book Description
Author: G. E. Rehfeldt
Publisher: Forgotten Books
ISBN: 9780243977789
Category : Business & Economics
Languages : en
Pages : 20
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Book Description
Excerpt from Genetic Variation in a Provenance Test of 16-Year-Old Ponderosa Pine Hence, the Washington Creek plantation contained two replicates. The Crane Creek Plantation was not replicated except for one provenance. After the trees were 16 years old, the following data were obtained for trees undamaged by snow, porcupines, insects, and cattle: 16 and 11-year heights, diameter at the ground, and number of branches in the upper two whorls. At Crane Creek, a systematic sample of 67 to 75 trees for each provenance was taken so that observations were available from entire plots. Because of high mortality and snow damage at the Washington Creek site, only 12 to 73 trees were measured for each provenance. Percentages of mortality and trees damaged by snow were estimated for each plot at Washington Creek. Snow damage included major bends in the stem, grotesquely deformed stems and branches, and broken tops. There was virtually no snow damage at Crane Creek, and mortality was minimal. 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.
Author: Richard T. Bingham
Publisher: Forgotten Books
ISBN: 9781390427929
Category : Science
Languages : en
Pages : 26
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Book Description
Excerpt from Station Publications in Forest Genetics and Related Fields Bingham, R. T. 1956. Some preliminary results in testing seedling progenies from controlled pollinations among blister rust resistant western white pines. P. 77-86, in: 3d Western Int. Forest Dis. Work Conf. Proc. 1955, 110 p. Bingham, R. T. 1959. Heritability and genetic improvement in log quality. P. 24-26, in: Univ. Idaho Log Grading Conf. Proc., 46 p. 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.
