Download or read book Florists Exchange and Horticultural Trade World written by and published by . This book was released on 1925 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Towns Ecology and the Land written by Richard T. T. Forman and published by Cambridge University Press. This book was released on 2019-02-07 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pioneering book highlighting the dynamic environmental dimensions of towns and villages and spatial connections with surrounding land.

Download or read book Allelopathy written by Manuel Joaquín Reigosa Roger and published by Springer Science & Business Media. This book was released on 2006 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader relevant information about actual knowledge about the process of allelopathy, covering all aspects from the molecular to the ecological level. Special relevance is given to the physiological and ecophysiological aspects of allelopathy. Several ecosystems are studied and methodological considerations are taken into account in several different chapters. The book has been written to be useful both for Ph.D. students and for senior researchers, so the chapters include all necessary information to be read by beginners, but they also include a lot of useful information and discussion for the initiated.

Download or read book Pathogen and Microbial Contamination Management in Micropropagation written by Alan C. Cassells and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based mainly on invited and offered papers presented at the Second International Symposium on Bacterial and Bacteria-like Contaminants of Plant Tissue Cultures held at University College, Cork, Ireland in September 1996, with additional invited papers. The First International Symposium on Bacterial and Bacteria-like Contaminants of Plant Tissue Cultures was held at the same venue in 1987 and was published as Acta Horticulturae volume 225, 1988. In the intervening years there have been considerable advances in both plant disease diagnostics and in the development of structured approaches to the management of disease and microbial contamination in micropropagation. These approaches have centred on attempts to separate, spatially, the problems of disease transmission and laboratory contamination. Disease-control is best achieved by establishing pathogen-free cultures while laboratory contamination is based on subsequent good working practice. Control of losses due to pathogens and microbial contamination in vitro addresses, arguably, the most importance causes of losses in the industry; nevertheless, losses at and post establishment can also be considerable due to poor quality microplants or micro-shoots. In this symposium, a holistic approach to pathogen and microbial contamination control is evident with the recognition that micropropagators must address pathogen and microbial contamination in vitro, and diseases and microplant failure at establishment. There is increasing interest in establishing beneficial bacterial and mycorrhizal association with microplants in vitro and in vivo.

Download or read book White Grubs and Their Allies written by Paul O. Ritcher and published by . This book was released on 1966 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seed Germination in Desert Plants written by Yitzchak Gutterman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: During germination, the most resistant stage of the life cycle - the seed - changes to the most sensitive stage, namely the seedling. Therefore, in desert plant species seed dispersal and subsequent germination in the optimum time an place place are particularly critical parameters. Discussed here are the ways and means by which desert plants have adapted through the course of evolution to their extreme environment. Two such strategies which have evolved are a) plants with relatively large and protected seeds which germinate when the chance of seedling survival is high and the risk relatively low or b) those with an opportunistic strategy: minute seeds which germinate after low rainfall under high risk for seedling survival if additional rain does not follow. Most species adopt a combination of the two mechanisms. Species have adapted both genotypically and phenotypically, both aspects of which are also discussed in this thorough text. The reader is provided with a good understanding of the complex influences on each seed traced through from initial development to germination stage regarding germination preparation and subsequent survival.

Download or read book Xanthomonas written by Jean Swings and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Xanthomonas is a bacterial plant pathogen which infects a wide range of crops worldwide. This book presents an overview of the host plants and the diseases caused by the pathogen on different crops.

Download or read book Discovering Life Manufacturing Life written by Pierre V. Vignais and published by Springer Science & Business Media. This book was released on 2010-06-21 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Francis BACON, in his Novum Organum, Robert BOYLE, in his Skeptical Chemist and René DESCARTES, in his Discourse on Method; all of these men were witnesses to the th scientific revolution, which, in the 17 century, began to awaken the western world from a long sleep. In each of these works, the author emphasizes the role of the experimental method in exploring the laws of Nature, that is to say, the way in which an experiment is designed, implemented according to tried and tested te- niques, and used as a basis for drawing conclusions that are based only on results, with their margins of error, taking into account contemporary traditions and prejudices. Two centuries later, Claude BERNARD, in his Introduction to the Study of Experimental Medicine, made a passionate plea for the application of the experimental method when studying the functions of living beings. Twenty-first century Biology, which has been fertilized by highly sophisticated techniques inherited from Physics and Chemistry, blessed with a constantly increasing expertise in the manipulation of the genome, initiated into the mysteries of information techn- ogy, and enriched with the ever-growing fund of basic knowledge, at times appears to have forgotten its roots.

Download or read book Applewood written by Susan J. Newhof and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Automotive pioneer Charles Stewart Mott and his first wife, Ethel Culbert Harding Mott, purchased sixty-four acres at the edge of downtown Flint, Michigan, and laid the cornerstone in 1916 for the family home and gentleman's farm they called Applewood. This collection of stories of Applewood's first one hundred years reveals the private lives of a very public family, much told in their own words. The author weaves excerpts from decades of interviews, personal letters, and C. S. Mott's detailed diary, plus recollections from family, friends, and staff. More than 250 photos, both new and historical images from the Ruth Mott Foundation Archives, give an intimate look at an extraordinary family and the place they called home.

Download or read book Maule s Seed Catalogue written by Wm. Henry Maule (Firm) and published by . This book was released on 1902 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ross Ade written by Robert C. Kriebel and published by Purdue University Press. This book was released on 2009 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dave Ross (1871-1943) and George Ade (1866-1944) were trustees, distinguished alumni and benefactors of Purdue University. Their friendship began in 1922 and led to their giving land and money for the 1924 construction of Ross-Ade Stadium, now a 70,000 seat athletic landmark on the West Lafayette campus. Their life stories date to 1883 Purdue and involve their separate student experiences and eventual fame. Their lives crossed paths with U.S. First Lady Eleanor Roosevelt, Henry Ford, Amelia Earhart, and Will Rogers among others. Gifts or ideas from Ross or Ade led to creation of the Purdue Research Foundation, Purdue Airport, Ross Hills Park, and Ross Engineering Camp. They helped Purdue Theater, the Harlequin Club and more. Ade, renowned author and playwright, did butt heads with Purdue administrators at times long ago, but remains a revered figure. Ross's ingenious mechanical inventions of gears still steer millions of motorized vehicles, boats, tractors, even golf carts the world over.

Download or read book Lagoa Santa Karst Brazil s Iconic Karst Region written by Augusto S. Auler and published by Springer Nature. This book was released on 2020-01-22 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the Lagoa Santa Karst, which has been internationally known since the pioneering studies of the Danish naturalist Peter Lund in the early 1800s. It covers the speleogenesis, geology, vegetation, fauna, hydrogeology, geomorphology, and anthropogenic use of the Lagoa Santa Karst and is the first English-language book on this major karst area. The area, which has been at the heart of the debate on the origin and age of human colonization in the Americas, is characterized by a classical and scenic karst landscape with limestone cliffs, karst lakes and karst plains, in addition to numerous solution dolines. More than 1,000 caves have been documented in the area, many with significant archeological and paleontological value. Despite its great importance, the Lagoa Santa Karst faces severe environmental threats due to limestone mining and the expansion of the metropolis of Belo Horizonte and its surrounding towns. The growing recognition of the area’s remarkable significance has led to increasing concern, and a number of protected areas have now been established, improving the conservation status of this landmark karst area.

Download or read book The Hacker Crackdown written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Features the book, "The Hacker Crackdown," by Bruce Sterling. Includes a preface to the electronic release of the book and the chronology of the hacker crackdown. Notes that the book has chapters on crashing the computer system, the digital underground, law and order, and the civil libertarians.

Download or read book The Ecology of Browsing and Grazing written by Iain J. Gordon and published by Springer Science & Business Media. This book was released on 2007-09-14 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume investigates how large herbivores not only influence the structure and distribution of the vegetation, but also affect nutrient flows and the responses of associated fauna. The mechanisms and processes underlying the herbivores' behavior, distribution, movement and direct impact on the vegetation are discussed in detail. It is shown that an understanding of plant/animal interactions can inform the management of large herbivores to integrate production and conservation in terrestrial systems.

Download or read book McCullough s Bulbs Seeds Plants Shrubs Trees Etc written by J.M. McCullough's Sons Co and published by . This book was released on 1924 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Triflumizole written by and published by . This book was released on 2009 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents the recommendations of Health Canada's Pest Management Regulatory Agency (PMRA) regarding maximum residue limits (MRL) for the fungicide triflumizole. The MRL reflects the acceptable quantity of residues that remain in or on food when a pesticide is used according to label directions.