Download or read book 22d Northeastern Forest Tree Improvement Conference New York Aug 7 9 1974 written by Poter W. Garrett and published by . This book was released on 1975 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 22nd Northeastern Forest Tree Improvement Conference written by Peter W. Garrett and published by . This book was released on 1975 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of The 22nd Northeastern Forest Tree Improvement Conference State University of New York College of Environmental Science and Forestry Syracuse N Y August 7 9 1974 written by and published by . This book was released on 1975 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 22nd Northeastern Forest Tree Improvement Conference State University of New York College of Environmental Science and Forestry Syracuse N Y August 7 9 1974 written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Twenty third Northeastern Forest Tree Improvement Conference written by and published by . This book was released on 1975 with total page 204 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 1973 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Northeastern Forest Tree Improvement Conference written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 9th Northeastern Forest Tree Improvement Conference Syracuse New York August 23 25 1961 written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 9th Northeastern Forest Tree Improvement Conference written by Ernst J. Schreiner and published by . This book was released on 1962 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1974 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Paper NE written by and published by . This book was released on 1985 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survival Growth and Juvenile mature Correlations in a West Virginia Sugar Maple Provenance Test 25 Years After Establishment written by Thomas M. Schuler and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Survival, total height, diameter at breast height (d.b.h.), and stem quality of sugar maple trees of different provenances were compared 25 years after establishment in north-central West Virginia. Provenances were from Michigan, Minnesota, West Virginia, Massachusetts, New Hampshire, Vermont, Maine, and Quebec, Canada. There were significant differences between provenances for all traits except stem quality. By provenance; total tree height ranged from about 49 to 37 feet; d.b.h. from 6.7 to 3.6 inches; and survival from 100 to 15 percent. The predictability of total tree height 25 years after establishment based on mean provenance height at age 2, 6, 10, and 15 years is discussed. Results suggest that juvenile height growth may be a good predictor of mature height performance, thus decreasing the need for rotation-length trials.
Download or read book Genetic Evaluation of Rapid Height Growth in Pot and Nursery grown Scotch Pine written by Maurice E. Demeritt and published by . This book was released on 1985 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2Genetic and environmental components of variance for 2-year heights of offspring from inter- and intra-provenance matings in Scotch pine (Pinus sylvestris L.) were studied to determine which provenances and selection methods should be used in a program to improve ornamental and Christmas trees. The study represents 11 experiments (parental groups), consisting of families from 7 diallel matings minus selfs in 5 different provenances, 3 factorial matings between provenances, and 1 from open pollination. The seedlings for the 11 experiments were grown in pots and in a nursery for 2 years. Heritability estimates of 2-year height from inter- and intra-provenance matings tended to be larger on a family basis than on an individual basis, with the larger estimates being from nursery evaluations. In general, additive genetic variance was larger than dominance variance, although dominance variance increased in provenance hybrids. Nursery evaluation was preferred to pot evaluation of 2-year height because heritability estimates were larger and error variances were smaller for the experiments evaluated. Individual selection in the nursery within the German provenance seems to be the best method for improvement of 2-year height of the provenances evaluated in this study, although the rate of improvement in the Spanish provenance may be greater. Simple recurrent selection would be a good method for improvement of traits important to the Christmas tree producing industry. S3.
Download or read book 3rd Northeastern Forest Tree Improvement Conference written by Ernst J. Schreiner and published by . This book was released on 1956 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Tree Improvement written by and published by . This book was released on 1977 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 11th Northeastern Forest Tree Improvement Conference written by Ernst J. Schreiner and published by . This book was released on 1964 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 5th Northeastern Forest Tree Improvement Conference written by and published by . This book was released on 1958 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
