Genetic Variation And Seed Transfer Guidelines For Ponderosa Pine In The Ochoco And Malheur National Forests Of Central Oregon

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Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon (Classic Reprint)

Frank C. Sorensen
Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon Classic Reprint Book PDF

Author : Frank C. Sorensen
Publisher : Forgotten Books
Page : 42 pages
File Size : 53,8 Mb
Release : 2018-02-12
Category : Business & Economics
ISBN : 0656433493

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Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon (Classic Reprint) by Frank C. Sorensen Pdf

Excerpt from Genetic Variation and Seed Transfer Guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon Adaptive genetic variation in seed and seedling traits was evaluated for 280 families from 220 locations. Factor scores from three principal components were related by multiple regression to latitude, longitude, elevation, slope, and aspect of the seed source, and by classification analysis to seed zone and elevation band in seed zone. Location variance was significant but not large. Multiple regression equations explained less than 50 percent of location variance. Slope-aspect variables were important. Keywords: Pinus ponderosa, seedlings, breeding zones, provenance, genetic variation, adaptive variation, genetic diversity. 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.

Research Paper PNW.

Anonim
Research Paper PNW Book PDF

Author : Anonim
Publisher : Unknown
Page : 428 pages
File Size : 44,7 Mb
Release : 1978
Category : Forests and forestry
ISBN : UCBK:C054497123

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Research Paper PNW. by Anonim Pdf

General Technical Report PNW-GTR

Anonim
General Technical Report PNW GTR Book PDF

Author : Anonim
Publisher : Unknown
Page : 566 pages
File Size : 53,6 Mb
Release : 2001
Category : Forests and forestry
ISBN : CORNELL:31924094735424

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General Technical Report PNW-GTR by Anonim Pdf

Adaptation in Plant Breeding

P.M.A Tigerstedt
Adaptation in Plant Breeding Book PDF

Author : P.M.A Tigerstedt
Publisher : Springer Science & Business Media
Page : 299 pages
File Size : 53,5 Mb
Release : 2013-03-09
Category : Science
ISBN : 9789401588065

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Adaptation in Plant Breeding by P.M.A Tigerstedt Pdf

Plant adaptation is a fundamental process in plant breeding. It was the first criterion in the initial domestication of plants thousands of years ago. Adaptedness is generally a quantitative complex feature of the plant, involving many traits, many of which are quantitative. Adaptation to stresses like cold, drought or diseases are among the most central problems in a world grappling with global food security. Modern plant breeding, based on mendelian genetics, has made plant improvement more effective and more precise and selective. Molecular genetics and genetic engineering has considerably increased this selectivity down to single genes affecting single traits. The time has come when plant breeding efficiency may cause loss of genetic resources and adaptation. In these proceedings an effort is made to merge modern plant breeding efficiency with ecological aspects of plant breeding, reflected in adaptation. It is hoped that this merger results in more sustainable use of genetic resources and physical environments. The book is based on 10 keynotes addressing a wide spectrum of themes related to adaptation. In addition each subject is further elaborated in up to three case studies on particular plant species or groups of plants. The keynotes do in fact overlap to some degree and there are articles in this volume that seemingly contradict each other, a common aspect in advanced fields of research. The keen reader may conclude that, in a world where climates and environments are under continuous change and where human society is more and more polarized into a developed and a developing part, adaptation of our cultivated plants has different constraints on yields depending on ecology, and indeed economy.

A Year in Review for the Pacific Northwest Research Station

Pacific Northwest Research Station (Portland, Or.)
A Year in Review for the Pacific Northwest Research Station Book PDF

Author : Pacific Northwest Research Station (Portland, Or.)
Publisher : Unknown
Page : 80 pages
File Size : 50,6 Mb
Release : 1994
Category : Forests and forestry
ISBN : MINN:31951D029777996

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A Year in Review for the Pacific Northwest Research Station by Pacific Northwest Research Station (Portland, Or.) Pdf

Past and Future Rapid Environmental Changes

Brian Huntley,Wolfgang Cramer,Alan V. Morgan,Honor C. Prentice,Judy R.M. Allen
Past and Future Rapid Environmental Changes Book PDF

Author : Brian Huntley,Wolfgang Cramer,Alan V. Morgan,Honor C. Prentice,Judy R.M. Allen
Publisher : Springer Science & Business Media
Page : 520 pages
File Size : 55,5 Mb
Release : 2013-06-29
Category : Science
ISBN : 9783642605994

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Past and Future Rapid Environmental Changes by Brian Huntley,Wolfgang Cramer,Alan V. Morgan,Honor C. Prentice,Judy R.M. Allen Pdf

Numerous experts including ecologists, geneticists, paleontologists and climatologists, investigate the response of terrestrial organisms to changes in their environment. The volume comprises an introductory and a final chapter by the editors as well as another 35 contributions. These are divided into six sections: 1. past environmental changes - the late-Quaternary; 2. spatial responses to past changes; 3. mechanisms enabling spatial responses; 4. evolutionary responses to past changes; 5. mechanisms enabling evolutionary responses; 6. predicted future environmental changes and simulated responses. The overwhelming and unanimous conclusion of all contributors is that forecasted global environmental changes pose a severe threat to the integrity of ecosystems worldwide and to the survival of at least some species.

Handbook of Plant and Crop Stress, Second Edition

Mohammad Pessarakli
Handbook of Plant and Crop Stress Second Edition Book PDF

Author : Mohammad Pessarakli
Publisher : CRC Press
Page : 1282 pages
File Size : 40,9 Mb
Release : 1999-05-19
Category : Science
ISBN : 0824746724

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Handbook of Plant and Crop Stress, Second Edition by Mohammad Pessarakli Pdf

Detailing interrelated topics, this work addresses issues and concerns related to plant and crop stress. This edition includes information on pH stress, temperature stress, water-deficit conditions, carotenoids and stress, light stress, pollution stress, agrichemical stress, oxidative damage to proteins, UV-B induced stress and abiotic stress tolerance.