Download or read book The Costs and Benefits of Tree Improvement Programs written by A. Carlisle and published by Information Canada. This book was released on 1971 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book West Coast Tree Improvement Programs written by F. Thomas Ledig and published by . This book was released on 1981 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Economic Analysis of Tree Improvement written by George F. Dutrow and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of current literature establishes that most authors believe that tree improvement expands production, although some point out drawbacks and alternatives. Both softwood and hardwood improvement programs have been analyzed. The authors used various models, economic assumptions, and standards of measurement, but available data were limited. Future models shouId attempt to be more eclectic.

Download or read book Cost benefit Analyses of Tree Improvement Programs written by Tim Mullin and published by . This book was released on 1996 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book West Coast Tree Improvement Programs written by F. Thomas Ledig and published by . This book was released on 1981 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How Effective are Tree Improvement Programs in the 50 States written by Christopher D. Risbrudt and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Economics of Tree Improvement written by Dan McKenny and published by Guelph, Ont. : Department of Agricultural Economics and Business, University of Guelph. This book was released on 1988 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings Northeastern Forest Tree Improvement Conference written by and published by . This book was released on 1968 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tree Improvement Opportunities in the North Central States Related to Economic Trends written by David H. Dawson and published by . This book was released on 1970 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetics and Improvement of Forest Trees written by Yuji Ide and published by MDPI. This book was released on 2021-08-16 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest tree improvement has mainly been implemented to enhance the productivity of artificial forests. However, given the drastically changing global environment, improvement of various traits related to environmental adaptability is more essential than ever. This book focuses on genetic information, including trait heritability and the physiological mechanisms thereof, which facilitate tree improvement. Nineteen papers are included, reporting genetic approaches to improving various species, including conifers, broad-leaf trees, and bamboo. All of the papers in this book provide cutting-edge genetic information on tree genetics and suggest research directions for future tree improvement.

Download or read book Proceedings written by and published by . This book was released on 1965 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Value of Conserving Genetic Resources written by Margery L. Oldfield and published by . This book was released on 1984 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tree Improvement Plan for Northeastern Area State and Private Forestry United States Department of Agriculture Forest Service written by Leroy C. Johnson and published by . This book was released on 1984 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Paper PSW written by Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) and published by . This book was released on 1978 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The economics of tree improvement programs in the Northeast written by Richard L. Porterfield and published by . This book was released on 1977 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Financial Aspects of Tree Improvement Stategies Within the Context of a Publicly Held Firm written by Thomas Alfred Thomson and published by . This book was released on 1983 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solar Energy Update written by and published by . This book was released on 1986 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: