Experimental Design and Analysis for Tree Improvement


Book Description

Experimental Design and Analysis for Tree Improvement provides a set of practical procedures to follow when planning, designing and analysing tree improvement trials. Using many fully-worked examples, it outlines how to: design field, glasshouse and laboratory trials; efficiently collect data and construct electronic data files; pre-process data, screening for data quality and outliers; analyse data from single and across-site trials using either GenStat or SAS; and interpret the results from statistical analyses. The authors address the many practical issues often faced in forest tree improvement trials and describe techniques that will give conclusive results with the minimum expense. The techniques provided are applicable to the improvement of not only trees, but to crops in general. Building on the success of the first edition, this edition includes commercially-available software packages for design generation (CycDesigN) and data pre-processing and automated generation of programs for statistical analysis (DataPlus). For analysis, it provides both GenStat and SAS programs as generated by DataPlus.




Experimental Design and Analysis for Tree Improvement


Book Description

Experimental Design and Analysis for Tree Improvement provides a set of practical procedures to follow when planning, designing and analysing tree improvement trials. Using examples, it outlines how to: design field, glasshouse and laboratory trials efficiently collect and construct electronic data files pre-process data, screening for data quality and outliers analyse data from single and across-site trials interpret the results from statistical analyses. The authors address the many practical issues often faced in forest tree improvement trials and describe techniques that will give meaningful results. The techniques provided are applicable to the improvement of not only trees, but to crops in general. This fully revised third edition includes the construction of p-rep and spatial designs using the commercially available software package for design generation (CycDesigN). For analysis of the examples, it provides online Genstat and SAS programs and a link to R programs.




Experimental Design and Analysis for Use in Tree Improvement


Book Description

Experimental planning and layout; Data collection and pre-processing; Experimental design; Analysis across sites; Variance components and genetics concepts; Incomplete block designs; analysis of gereralized lattice designs.




Optimal Experimental Design with R


Book Description

Experimental design is often overlooked in the literature of applied and mathematical statistics: statistics is taught and understood as merely a collection of methods for analyzing data. Consequently, experimenters seldom think about optimal design, including prerequisites such as the necessary sample size needed for a precise answer for an experi













Tree Improvement Research at the Lake City, Florida, Research Center


Book Description

Excerpt from Tree Improvement Research at the Lake City, Florida, Research Center: A Project Analysis Forest genetics at the Lake City, Florida, Research Center is financed jointly by the Florida Board of Forestry and the U. 8. Forest Service. Another cooperative agreement with the University of Florida's School of Forestry provides for the exchange of technical information on the project and joint use of facilities. Initially this research program was concentrated on the inheritance of gum production, a field in which the basic relationships have now been determined and one in which this project will continue to provide leader ship. Turpentining, however, no longer is the major end product of slash and longleaf pine in this region. Naval stores now is being integrated with other forest use. Therefore, the improvement of growth rate, quality, and resistance to disease and insects must also be considered. It has already been determined that gum yield is correlated with growth rate. Thus, primary emphasis is being given now to improvement of growth and quality, with gum yield as a secondary objective. The Lake City Tree Improvement Project complements correlated research in other southern research centers, i. E. The fundamental south wide studies at the Southern Institute of Forest Genetics, Gulfport, Mississippi; the applied aspects of tree selection and breeding being undertaken cooperatively by the State of Georgia and the Southeastern Forest Experiment Station at Macon and the University of Georgia School of Forestry at Athens, Georgia; the educational and research program in Forest Genetics at the School of Forestry, University of Florida, Gaines ville, Florida; the research and educational program in Forest Genetics of the Texas Forest Service, College Station, Texas; and related projects at Crossett, Arkansas, and elsewhere in the South. 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.




Plant Breeding Reviews


Book Description

Plant Breeding Reviews is an ongoing series presenting state-of-the art review articles on research in plant genetics, especially the breeding of commercially important crops. Articles perform the valuable function of collecting, comparing, and contrasting the primary journal literature in order to form an overview of the topic. This detailed analysis bridges the gap between the specialized researcher and the broader community of plant scientists.




West Coast Tree Improvement Programs


Book Description

Three tree improvement programs were analyzed by break-even, cost-benefit technique: one for ponderosa pine in the Pacific Northwest, and two for Douglas-fir in the Pacific Northwest-one of low intensity and the other of high intensity. A return of 8 percent on investment appears feasible by using short rotations or by accompanying tree improvement with thinning. Interest rates, length of rotation, the inclusion of thinnings, and site index had greater effects on profitability than program design. Large breeding zones improved profitability, although they incur the biological risks of nonadaptation to local conditions and loss of local genetic resources. Increasing orchard seed yield affected the results only slightly unless the planting program could be expanded, which is equivalent to increasing the size of the breeding zone. If the increase in seed yield merely reduced the required acreage of seed orchard and associated costs, the financial results improved only slightly.