Download or read book Septoria Canker of Poplars in the United States written by Alma May Waterman and published by . This book was released on 1954 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tree Planters Notes written by and published by . This book was released on 1967 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some no. include reports compiled from information furnished by State Foresters (and others).

Download or read book Circular United States Department of Agriculture written by United States. Dept. of Agriculture and published by . This book was released on 1953 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Soil Applications of Insecticides on the Growth and Yield of Vegetable Crops written by M. W. Stone and published by . This book was released on 1953 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Review of Phosphate Fertilizer Investigations in 15 Western States Through 1949 written by Howard Boyd Peterson and published by . This book was released on 1953 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Plant Disease Reporter written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Plant Disease Bulletin written by and published by . This book was released on 1976 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to Insect Disease and Animal Pests of Poplars written by Roswell D. Carpenter and published by . This book was released on 1989 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agriculture Handbook written by and published by . This book was released on 1975 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.

Download or read book General Technical Report NC written by and published by . This book was released on 1981 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating the Amount of Crop Residue on a Field written by F. L. Duley and published by . This book was released on 1958 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transactions of the Wisconsin Academy of Sciences Arts and Letters written by Wisconsin Academy of Sciences, Arts, and Letters and published by . This book was released on 1919 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1870/72-1926 include: Proceedings, and: List of members of the academy.

Download or read book At the Northeastern Station written by Northeastern Forest Experiment Station (Radnor, Pa.) and published by . This book was released on 1949 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report written by Northeastern Forest Experiment Station (Radnor, Pa.) and published by . This book was released on with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Breeding Pest Resistant Trees written by H. D. Gerhold and published by Elsevier. This book was released on 2013-09-24 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breeding Pest-Resistant Trees documents the proceedings of a N.A.T.O. and N.S.F. Advanced Study Institute on Genetic Improvement For Disease and Insect Resistance of Forest Trees held in Pennsylvania State University from August 30 to September 11, 1964. This book compiles the study and research of geneticists, pathologists, entomologists, and foresters concerned with the genetic resistance of forest trees to pests and breeding programs for disease- and insect-resistant trees. This compilation is divided into three parts. The first part discusses about the résumés of research related to forest tree pest resistance by geographic regions. Part II focuses on the reports of significant research advances in the basic knowledge of disease and insect resistance of forest trees, while Part III includes the discussion of approaches and methods for genetic improvement in pest resistance of forest trees. The topics covered include the variation and inheritance of pest resistance in forest trees; environmental effects on the host-pest relationship; review of basic knowledge of forest tree pest resistance; selection for pest resistance in wild populations; and testing and evaluating inherent pest resistance. This publication is a good source for students and individuals conducting work on the resistance of forest trees to diseases and pest insects.

Download or read book Plant Aging written by Roberto Rodríguez and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many, the terms aging, maturation and senescence are synonymous and used interchangeably, but they should not be. Whereas senescence represents an endogenously controlled degenerative programme leading to plant or organ death, genetiC aging encompasses a wide array of passive degenerative genetiC processes driven primarily by exogenous factors (Leopold, 1975). Aging is therefore considered a consequence of genetiC lesions that accumulate over time, but by themselves do not necessarily cause death. These lesions are probably made more severe by the increase in size and complexity in trees and their attendant physiology. Thus while the withering of flower petals following pollination can be considered senescence, the loss of viability of stored seeds more clearly represents aging (Norden, 1988). The very recent book "Senescence and Aging in Plants" does not discuss trees, the most dominant group of plants on the earth. Yet both angiospermic and gymnospermic trees also undergo the above phenomena but less is known about them. Do woody plants senesce or do they just age? What is phase change? Is this synonymous with maturation? While it is now becoming recognized that there is no programmed senescence in trees, senescence of their parts, even in gymnosperms (e. g. , needles of temperate conifers las t an average of 3. 5 years), is common; but aging is a readily acknowledged phenomenon. In theory, at least, in the absence of any programmed senescence trees should -live forever, but in practice they do not.

Download or read book Circular written by and published by . This book was released on 1952 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: