Apple Powdery Mildew and Its Control in the Arid Regions of the Pacific Northwest (Classic Reprint) PDF Download
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Author: D. F. Fisher Publisher: Forgotten Books ISBN: 9780266861430 Category : Business & Economics Languages : en Pages : 38
Book Description
Excerpt from Apple Powdery Mildew and Its Control in the Arid Regions of the Pacific Northwest Apple'powdery mildew is usually considered as of only minor im portance and principally affecting nursery stock in'the eastern part of the United States, only becoming serious in restricted localities. Occasionally it is severe in Utah, Colorado, New Mexico, and the East on Old trees, but In the apple growing districts Of the Pacific Coast the conditions are such that it Often 'becomes serious. The arid climate of the hot interior valleys Of the Pacific Northwest has proved an effective safeguard against fungous diseases In general, but apple powdery mildew is endemic. 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.
Author: D. F. Fisher Publisher: Forgotten Books ISBN: 9780266861430 Category : Business & Economics Languages : en Pages : 38
Book Description
Excerpt from Apple Powdery Mildew and Its Control in the Arid Regions of the Pacific Northwest Apple'powdery mildew is usually considered as of only minor im portance and principally affecting nursery stock in'the eastern part of the United States, only becoming serious in restricted localities. Occasionally it is severe in Utah, Colorado, New Mexico, and the East on Old trees, but In the apple growing districts Of the Pacific Coast the conditions are such that it Often 'becomes serious. The arid climate of the hot interior valleys Of the Pacific Northwest has proved an effective safeguard against fungous diseases In general, but apple powdery mildew is endemic. 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.
Author: William Rodgers Bushnell Publisher: ISBN: Category : Science Languages : en Pages : 576
Book Description
Origins, specificity, structure, and physiology; Evolution at the center of origin; Taxonomy of the cereal rust fungi; Specificity; The formae speciales; Race specificity and methods of study; Genetics of the pathogen: host association; Histology and molecular biology of host: parasite; Virulence frequency dynamics of cereal rust fungi; The rust fungus; Controlled infection by Puccinia graminis f.sp. tritici under artificial conditions; Developmental ultrastructure of hyphae and spores; Development and physical of teliospores; Obligate parasitism and axenic culture; The host parsite interface; The rusted host; Effects of rust on plant development in relation to the translocation of inorganic and organic solutes.
Author: Josef Palti Publisher: Springer Science & Business Media ISBN: 3642682669 Category : Technology & Engineering Languages : en Pages : 259
Book Description
The development of a crop, and therefore its health, is always the result of interplay between biological and environmental factors, as influenced by human agency. In other words, crop health is a highly complex affair. This book is concerned with only one group of agents affecting crop health, the pathogens, and not with animal pests or direct effects of physiological or weather factors. Even within this one group, however, the interaction of causal agents with environmental and biotic factors is highly complex. No less complex is the effect of cultural practices on the crop and its health. There is probably no major practice that does not affect diverse facets of crop growth, which in turn affects crop/pathogen relationships. Thus tillage se quentially affects depth and rate of root development, hence nutrient uptake, hence general plant size and habit as well as crop climate and crop susceptibility. Irri gation affects all these parameters, and facilitates crop growth under diverse macro climatic conditions, with all the ensuing implications for disease development. In this book an attempt is made to superimpose one set of complexities, the cul tural practices, on another such set, crop health. This may seem overambitious, not to say foolhardy, unless we remember that it has been done by farmers, consciously or unconsciously, ever since the beginnings of agriculture. We are here chiefly try ing to rationalize traditional practices, review modern research on the development of further practices, and assess the place of the latter in integrated disease control.
Author: Allen V. Barker Publisher: CRC Press ISBN: 1420014870 Category : Science Languages : en Pages : 662
Book Description
The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.
Author: D. F. Fisher
Author: D. F. Fisher
Author: D. F. Fisher
Author: United States. Department of Agriculture
Author: Durward Frederick Fisher
Author: 
Author: William Salisbury Ballard
Author: William Rodgers Bushnell
Author: Josef Palti
Author: Allen V. Barker
Author: Joel Timyan