Download or read book Rooted and Reduced to Dust written by Ivy Raff and published by . This book was released on 2024-02-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drought and Aquatic Ecosystems written by P. Sam Lake and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Droughts are a major hazard to both natural and human-dominated environments and those, especially of long duration and high intensity, can be highly damaging and leave long-lasting effects. This book describes the climatic conditions that give rise to droughts, and their various forms and chief attributes. Past droughts are described including those that had severe impacts on human societies. As a disturbance, droughts can be thought of as “ramps” in that they usually build slowly and take time to become evident. As precipitation is reduced, flows from catchments into aquatic systems decline. As water declines in water bodies, ecological processes are changed and the biota can be drastically reduced, though species and populations may survive by using refuges. Recovery from drought varies in both rates and in degrees of completeness and may be a function of both refuge availability and connectivity. For the first time, this book reviews the available rather scattered literature on the impacts of drought on the flora, fauna and ecological processes of aquatic ecosystems ranging from small ponds to lakes and from streams to estuaries. The effects of drought on the biota of standing waters and flowing waters and of temporary waters and perennial systems are described and compared. In addition, the ways in which human activity can exacerbate droughts are outlined. In many parts of the world especially in the mid latitudes, global warming may result in increases in the duration and intensity of droughts. Drought and Aquatic Ecosystems is essential reading for freshwater ecologists, water resource managers and advanced students.
Download or read book Cabbage Seedbed Diseases and Delphinium Root Rots written by Fred Carlton Stewart and published by . This book was released on 1925 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book E written by and published by . This book was released on 1944 with total page 598 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 1971 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ancient history matters written by Jens Erik Skydsgaard and published by L'ERMA di BRETSCHNEIDER. This book was released on 2002 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diseases of Horticultural Crops Nematode Problems and their Management written by P. Parvatha Reddy and published by Scientific Publishers. This book was released on 2008-07-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nematodes continue to threaten horticultural crops throughout the world, particularly in tropical and sub-tropical regions. Estimated overall average annual yield loss of the world's major horticultural crops due to damage by plant parasitic nematodes is 13.54%. Monetary losses due to nematodes on 10 horticultural crops, six of which are life sustaining were estimated at US$ 19.37 billion annually based on 1984 production figures and prices. These deleterious effects on plant growth result in reduced yields and poor quality of horticultural crops. Nematode management is therefore, important for high yields and quality that are required by the high cost of modern crop production. The information on nematode diseases and their management, especially crop wise, is very much scattered and there is no book which deals entirely with the above aspects on horticultural crops. This book deals with nematode diseases and their management in horticultural crops such as fruit, vegetable, orname-ntal, medicinal, aromatic, plantation, spice and tuber crops. Each nematode disease is described in adequate detail under the following heads: economic importance, crop losses, distribution, symptoms, hosts range, life cycle, races/ biotypes, host-parasite relationship, histopathology, ecology, spread, survival, interaction with other pathogens and management. The management methods presented includes regulatory, physical cultural, chemical, biological, host resistance and integrated approach. An entire chapter is devoted for sources of availability of critical inputs used for nematode management which would be very useful to the farmers. Very useful information on certain aspects of nematode management is presented in Appendix. The book is adequately illustrated with about 50 figures. This book is a practical guide to practicing farmers of horticultural crops. Further, it is a useful reference to policy makers, research and extension workers and students. The material can also be used for teaching under-graduate and post-graduate courses.
Download or read book The Plant Disease Reporter written by and published by . This book was released on 1967 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biointensive Integrated Pest Management in Horticultural Ecosystems written by P. Parvatha Reddy and published by Scientific Publishers. This book was released on 2014-01-01 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book deals with the most recent biointensive integrated approaches for pest management utilizing components such as bioagents [predators, parasitoids and pathogens (bacteria, fungi, viruses)], botanicals (biofumigation, oil cakes, FYM, compost, crop residues, green manuring and other organic amendments), arbuscular mycorrhizal fungi, physical methods (hot water treatment of planting material, soil solarization), cultural methods (crop rotation, summer ploughing, fallowing, intercropping, pruning, mulching, spacing, planting date, trap cropping, etc.), biorational chemicals (pheromones) and resistant cultivars. This book can serve as a useful reference to policy makers, research and extension workers, practicing farmers and students. The material can also be used for teaching post-graduate courses.
Download or read book Encyclopedia of Practical Receipts and Processes written by William Dick and published by BoD – Books on Demand. This book was released on 2023-03-26 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprint of the original, first published in 1872. The publishing house Anatiposi publishes historical books as reprints. Due to their age, these books may have missing pages or inferior quality. Our aim is to preserve these books and make them available to the public so that they do not get lost.
Download or read book Postharvest Physiological Disorders in Fruits and Vegetables written by Sergio Tonetto de Freitas and published by CRC Press. This book was released on 2019-01-15 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, chock full of color illustrations, addresses the main postharvest physiological disorders studied in fruits and vegetables. For a wide variety of fruits and vegetables, Postharvest Physiological Disorders in Fruits and Vegetables describes visual symptoms, triggering and inhibiting mechanisms, and approaches to predict and control these disorders after harvest. Color photographs illustrate the disorders, important factors, physiology, and management. The book includes a detailed description of the visual symptoms, triggering and inhibiting mechanisms, and possible approaches to predict and control physiological disorders. The mechanisms triggering and inhibiting the disorders are discussed in detail in each chapter, based on recent studies, which can help readers better understand the factors regulating each disorder. The description of possible approaches to predict and control each disorder can help growers, shippers, wholesalers, and retailers to determine the best management practices to reduce disorder incidence and crop losses. Features: Presents visual symptoms of postharvest physiological disorders that will help readers to precisely identify the disorders in fruits and vegetables Details mechanisms triggering and inhibiting the postharvest disorders Explains possible approaches to predict and control these disorders Suggests the best postharvest management approaches for each crop Although there are many scientific publications on postharvest physiological disorders, there are no recent reviews or books putting together the most recent information about the mechanisms regulating, as well as about the possible approaches to predict and control these disorders.
Download or read book A Dictionary of the English Language written by Noah Webster and published by . This book was released on 1832 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Advances in Ecobiological Research written by M. P. Sinha and published by APH Publishing. This book was released on 1997 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed articles with reference to India; commemoration volume for Prof. P.N. Mehrotra.
Download or read book Botanical Pesticides for Pest Management written by D.A. Dodia and published by Scientific Publishers. This book was released on 2010-03-01 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been mainly written for the research workers and students of various Universities, who are interested to use eco-friendly indigenous plant materials in pest management programme. The book provides a brief amount on different plants having pesticidal properties viz., plant taxonomy, geographical distribution, chemical constitutions and their structural formula, their mode of action, procedure for preparation and their safety to non target organisms. It is hoped that this book will be very useful to graduate/post graduate students of Agriculture as well as Basic science, researchers and extension workers. This book will be useful to environme- ntalists who are interested to minimize the use of synthetic chemicals in pest manag- ement programme and also for the pesticide formulation industries to develop newer molecules based on phytochemicals. Every attempt has been made to provide necessary information for students and researchers, which is hardly available in other books.
Download or read book Advances in Nematology written by P.C. Trivedi and published by Scientific Publishers. This book was released on 2003-05-01 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant parasitic nematodes are one of the least understood agricultural pest problems throughout the world. Science of Plant Nematology has grown rapidly is the last three decades. There is a wide gap between the vast information generated for nematode control and that, which is actually utilised. The present book ``Advances in Nematology'' provides an authoritative review account of many aspects of current interest and progress in the field of Plant Nematology that has been made in the recent past. This book includes 21 articles by eminent nematologist on different aspects of the subject. Information on application of molecular biology in nematology, nematodes as biological model, race status in plant parasitic nematodes and nematode vectors of plant diseases have been reviewed covering all major aspects. Nematode diseases on wheat, rice, tobacco, mint, barley and horticultural crops and their management, specially in context to Indian scenario have been covered. Newer approaches for the management of plant parasitic nematodes including use of VAM fungi, biocontrol agents and integrated nematode management strategies have been included to project out their use on field scale. Articles on role of nematodes in disease complexes with fungi, genetic studies on the resistance of barley, breeding for nematode resistance in forage legumes and nematode pests of economically important crops in India and their managements have been added to the value of the book. Scholars and students of Nematology, researchers and extension workers and plant pathologist will find this book very useful.
Download or read book Nematode Management in Plants written by P.C. Trivedi and published by Scientific Publishers. This book was released on 2003-07-01 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nematodes represent a unique challenge to agricultural research, in that they combine the potential for serious reductions in growth and yield in a wide range of crop plants, often with rather nonspecific and easily misdiagnosed symptoms. Development of the concept of pest management and their implementation have led to a greater appreciation of the need for a wide range of tactics for nematode control. The present book ``Nematode Management in Plants'' provides an authoritative review of many aspects of nematode control and progress in the field of nematode management programme. The volume contains eighteen articles covering application of cropping sequences, plant products and botanicals, latex, bioagents and biological control practices for the management of nematode pests. Topics covering use of Azotobacter, Bacillus thuringiensis and VAM Fungi for reducing nematode pests have been specially included to project their role in the present century. Information on Integrated Nematode Management have been included with special emphasis on biocontrol management practices. This book will be useful to Plant Pathologist, Nematologist, research and extension workers, teachers and students.
Download or read book Embryology of Flowering Plants Terminology and Concepts Vol 3 written by T B Batygina and published by CRC Press. This book was released on 2019-04-23 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant embryology, dealing with the regularities of initiation and the first stages of development of an organism, is now flourishing because of the overall progress being made in natural sciences. Such discoveries of the 20th century as production of plants from a single somatic cell, experimental haploidy, and parasexual hybridization were of general biological significance. The combined efforts of embryologists, geneticists and molecular biologists yielded the discovery of specific genes that control meiosis, egg cell development and early stages of embryogenesis. The tendency to synthesize data of embryology and genetics has become increasingly noticeable. It is connected with the fact that the majority of problems connected with morphogenesis, such as differentiation, specialization, the evaluation of features and the definition of the notionsgene and feature andgenotype and phenotype concern embryology and genetics (embryogenetics) in one way or another. Evolutionary embryology has given rise to a new approach to the study of problems of adaptation in plants. In connection with the problem of preserving biological diversity under conditions of ecological stress, special attention is paid to ecological embryology, revealing the critical periods in early ontogenesis and plasticity and tolerance of reproductive systems at the level of species and population. The study of variability of morphogenesis and phenotype in population (life cycle variations and the diversity of reproductive systems) is the most important point in the population embryology of plants.
