Download or read book Provenance Variation Genetic Variance and Age to age Correlation in White Spruce Picea Glauca Moench Voss and Their Implications for Advanced Generation Breeding written by Jianyuan Wang and published by . This book was released on 2000 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by Minnesota Tree Improvement Cooperative and published by . This book was released on 2010 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1999 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inheritance of budbreak and correlation with early height growth in white spruce Picea glauca from New England written by Ronald C. Wilkinson and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 1985 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics of White Spruce written by Hans Nienstaedt and published by . This book was released on 1972 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics of Interior Spruce in British Columbia written by Chang-Yi Xie and published by . This book was released on 1998 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interior spruce (the white spruce/Engelmann spruce complex) is the most commonly planted tree in British Columbia and has the greatest value to the forest economy of the province. The Ministry of Forests initiated an ambitious breeding program for interior spruce in the late 1960s aimed at producing sufficient quantities of genetically improved seeds to meet demand for forest regeneration. The program started with designating three selection units across the complex, based mostly on biogeoclimatic information. In each unit, desirable phenotypes were selected and their genetic merit was tested in open pollinated progeny trials. This report summarizes 20-year test results on the performance & variability of the selected open-pollinated families in the East Kootenay selection unit. Results are presented regarding height growth, survival rates, diameter, stem volume, and variations in parameters among specific sites in the unit.
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.
Download or read book Agrindex written by and published by . This book was released on 1987 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Predicting Breeding Values with Applications in Forest Tree Improvement written by T.L. White and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: In most breeding programs of plant and animal species, genetic data (such as data from field progeny tests) are used to rank parents and help choose candidates for selection. In general, all selection processes first rank the candidates using some function of the observed data and then choose as the selected portion those candidates with the largest (or smallest) values of that function. To make maximum progress from selection, it is necessary to use a function of the data that results in the candidates being ranked as closely as possible to the true (but always unknown) ranking. Very often the observed data on various candidates are messy and unbalanced and this complicates the process of developing precise and accurate rankings. For example, for any given candidate, there may be data on that candidate and its siblings growing in several field tests of different ages. Also, there may be performance data on siblings, ancestors or other relatives from greenhouse, laboratory or other field tests. In addition, data on different candidates may differ drastically in terms of quality and quantity available and may come from varied relatives. Genetic improvement programs which make most effective use of these varied, messy, unbalanced and ancestral data will maximize progress from all stages of selection. In this regard, there are two analytical techniques, best linear prediction (BLP) and best linear unbiased prediction (BLUP), which are quite well-suited to predicting genetic values from a wide variety of sources, ages, qualities and quantities of data.
Download or read book Ecophysiology of White Spruce Picea Glauca Moench Voss Regeneration written by Edward Carter Tear and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of light and seedbed type were evident for germination success and seedling survival of white spruce [ Picea glauca (Moench) Voss] in the field. Under forest canopy cover, seedbeds of exposed mineral soil had higher rates of germination than seedbeds with competing vegetation removed or on seedbeds with competing vegetation intact. The shade offered by the forest canopy and the seedbed of mineral soil probably maintain adequate soil moisture conditions to allow good germination. Microsites which had mineral soil exposed and which were only partially shaded enhanced white spruce seedling survival. These microsites probably did not experience severe fluctuations in soil moisture content which may be a major cause of seedling mortality in white spruce. Time of year, light and watering do not act independently on retention, distribution or partitioning of recently photoassimilated 14 C02. Seasonal patterns of each are influenced by either light or watering or both. Spruce seedlings grown under water stress or "full-light" conditions retain less 14 C than those seedlings grown under no water stress or grown under low light. The effects of light or watering regime are more pronounced on first-year seedlings than on second-year seedlings. Generally, second-year seedlings translocate a greater percentage of recently assimilated 14 C to the roots than do first-year seedlings. The percent of 14 C translocated to the roots varies with time of year and is affected by the interactive effects of light and watering. Between June and September an increasing proportion of assimilated carbon-14 is channelled into storage rather than into structural components. Deviations from this pattern can occur as a result of changes in light and watering. Xylem pressure potential can be used to estimate white spruce seedling survival. The relationship between xylem pressure potential and survival varied with soil type, probably due to differences in hygroscopic properties. The younger the seedling the more sensitive it is to drying soils.
Download or read book Genetic Data Analysis for Plant and Animal Breeding written by Fikret Isik and published by Springer. This book was released on 2017-09-09 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book fills the gap between textbooks of quantitative genetic theory, and software manuals that provide details on analytical methods but little context or perspective on which methods may be most appropriate for a particular application. Accordingly this book is composed of two sections. The first section (Chapters 1 to 8) covers topics of classical phenotypic data analysis for prediction of breeding values in animal and plant breeding programs. In the second section (Chapters 9 to 13) we provide the concept and overall review of available tools for using DNA markers for predictions of genetic merits in breeding populations. With advances in DNA sequencing technologies, genomic data, especially single nucleotide polymorphism (SNP) markers, have become available for animal and plant breeding programs in recent years. Analysis of DNA markers for prediction of genetic merit is a relatively new and active research area. The algorithms and software to implement these algorithms are changing rapidly. This section represents state-of-the-art knowledge on the tools and technologies available for genetic analysis of plants and animals. However, readers should be aware that the methods or statistical packages covered here may not be available or they might be out of date in a few years. Ultimately the book is intended for professional breeders interested in utilizing these tools and approaches in their breeding programs. Lastly, we anticipate the usage of this volume for advanced level graduate courses in agricultural and breeding courses.
Download or read book Nursery Indications of White Spruce Provenance Variability in Northwestern Ontario written by D. A. Skeates and published by Maple : Ontario Tree Improvement and Forest Biomass Institute. This book was released on 1988 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Diversity in Commercial Tree Species written by Jean Beaulieu and published by [Sainte-Foy, Quebec] : Canadian Forest Service. This book was released on 2002 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harmonisation of Regulatory Oversight in Biotechnology Safety Assessment of Transgenic Organisms Volume 3 OECD Consensus Documents written by OECD and published by OECD Publishing. This book was released on 2010-11-09 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries and some non members associated with the work.
Download or read book Mortality in semi mature white spruce on Prince Edward Island written by Canada. Forestry Canada. Maritimes Region and published by Fredericton, N.B. : Forestry Canada - Maritimes. This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are about 50,000 ha of white spruce stands on formerly agricultural land in Prince Edward Island, representing about 30% of the province's merchantable softwood resource. Over 60% of the field spruce is 30-50 years of age, about the limit of their growth. Since this early mortality is limited to white spruce growth on formerly cultivated fields, the study postulated that nutrient deficiencies might be the main cause of the early mortality. With the assumption that P.E.I. white spruce is genetically similar to white spruce on nearby undisturbed soils, comparisons of nutrient level trends were carried out over age sampling continuum in the two situations. Both current and year- old foliage were sampled, because deficiencies are sometimes characterized by withdrawal of scarce nutrients for old to new foliage.
