Download or read book The Handbook of Mites of Economic Plants written by Vincenzo Vacante and published by CABI. This book was released on 2015-12-21 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mites pose a serious problem to plants worldwide, attacking crops and spreading disease. When mites damage crops of economic importance the impacts can be felt globally. Mites are among the most diverse and successful of invertebrates, with over 45,000 described species, with many more thousands to be discovered. They are responsible for a significant portion of the losses of crops for food, fibre, industry and other purposes, and require expensive and often controversial pest control measures. Understanding these mites is vital for entomologists, pest researchers, agronomists and food producers. Knowledge of mite pests helps to inform control strategies and optimize the production of economic plants and the agrarian economy. This encyclopedia provides a thorough coverage of the mites and the problems they cause to crops, yet it is easily searchable, organised by mite species and subdivided into helpful headings. It takes a worldwide view of the issue of mites injurious to economic plants, describing mites prevalent in different regions and discussing control methods appropriate in different environments. This book provides an encyclopaedic reference to the major mites, described by family in terms of their internal and external morphology, bio-ecology and family systematics. Methods of mite collection and laboratory study is described, as well as species diagnostic characteristics, worldwide distribution, host plants, identification by the type of damage they cause and control strategies, including chemical and biological intervention and integrated pest management measures. Mites of the following families are included: (Eriophyoidea, Tarsonemidae, Tuckerellidae, Tenuipalpidae, Tetranychidae, Acaridae, Penthaleidae). Mites of Economic Plants is an important resource for students of entomology and crop production, and as a thorough reference guide for researchers and field workers involved with mites, crop damage and food production.

Download or read book Male Sterility in Flowering Plants written by S. K. Jain and published by Springer. This book was released on 2013-03-14 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: or fruit production as a consequence of the lack of optimum pollination conditions (CLARK and FRYER, 1920; ARMSTRONG and WHITE, 1935; VALLEAU, 1918; KVAALE, 1927; and many others). In order to mini mize the influence of poor pollen producers, systematic planning of a field planting or an orchard might be necessary. Above all, the im portant reason for its wide popularity is its potential use in the com mercial production of hybrid seed. A male-sterile plant is an effective female for a crossing program and its employment renders the labori ous procedure of emasculation superfluous. ]ONES and EMSWELLER (1937) and STEPHENS (1937) were probably the first to outline a scheme of its application in onion and sorghum respectively. However certain specific problems have limited the practicability and hence some of them will be mentioned in a later seetion (Section VIII). Lately several attempts have been made to obtain some chemie al method for the artificial induction of male sterility. However, for a successful approach to the induction problem a thorough understan ding of various pathways that bring about pollen abortion in naturally occurring cases, would be of great value. It may be hoped that data from these induction experiments alongwith the available biochemi cal analyses would lead to the emergence and elucidation of useful information of both theoretical and practical interest.

Download or read book Principles and Practices of Seed Storage written by Oren L. Justice and published by . This book was released on 1978 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Epidemiology of Plant Diseases written by D.G. Jones and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most branches of science have what might be termed a 'core area' which is both related to and helps to integrate peripheral topics to form the overall subject area. Without this central link, the subject is simply a collection of disparate, albeit gener ally related topics. What genetics is to plant breeding, epidemiology is to the subject of plant pathology and, no matter what individual topic is considered, it is always possible to recognize the interaction with and relationship to epidemiological factors. Broadly speaking, until the 1950s, plant pathology was considered as the applied side of mycology and, indeed, the British Society of Plant Pathology was spawned from its mentor, the British Mycological Society, with considerable help from The Association of Applied Biology. However, with the exploding world popu lation and the growing demand for food, plant pathologists became increasingly aware of the need for a more considered, measured, precise and even holistic approach to their subject and, particularly, to plant disease management. Looking back over 40 years of teaching and research in plant pathology, it was very clear that the 'core' of the subject was epidemiology and that this 'new' study was developing a very distinct identity which was rapidly being recognized in its own right. The 'shotgun' approach to plant disease 'control' was quickly perceived to be too inexact and almost every aspect of the subject was being reviewed, refined and advanced.

Download or read book A Selected Guide to the Literature of the Flowering Plants of Mexico written by Ida Kaplan Langman and published by University of Pennsylvania Press. This book was released on 2018-01-09 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography is a guide to the literature on Mexican flowering plants, beginning with the days of the discovery and conquest of Mexico by the Spaniards in the early sixteenth century.

Download or read book Carrot Rust Fly and Its Control written by Emmett D. Harris and published by . This book was released on 1959 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Historical perspective of early twentieth century Carboniferous paleobotany in North America written by William Culp Darrah and published by Geological Society of America. This book was released on 1995 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of Recent Published Material on Soil and Water Conservation written by and published by . This book was released on 1950 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstracts for Dec. 1954- issued in the Agricultural Research Service's series ARS-41.

Download or read book The Timber Owner and His Federal Income Tax written by Ellis Tilton Williams and published by . This book was released on 1964 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In vitro Haploid Production in Higher Plants written by S. Mohan Jain and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula tions. Both improved cultural practices and improved crop plants have alIowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of alI crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

Download or read book Index of Trademarks Issued from the United States Patent Office written by United States. Patent Office and published by . This book was released on 1953 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science Education for Elementary School Teachers written by Harold E. Tannenbaum and published by . This book was released on 1965 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Trademarks Issued from the United States Patent and Trademark Office written by and published by . This book was released on 1953 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vicia faba Agronomy Physiology and Breeding written by P.D. Hebblethwaite and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fourth major publication on Vicia faba reporting proceedings of seminars organised through the Commission of the European Communities in the context of the E.E.C. Common Research Programme on Plant Protein Improvement. The previous three volumes report proceedings from the seminar in Sari in 1978 (Some current research on Vicia faba in Western Europe), and from Cambridge in 1979 (Vicia faba : Feeding value, processing and viruses) and in Wageningen in 1980 (Vicia faba : Physiology and Breeding). The theme of this seminar, held at the University of Nottingham from 14th to 16th September 1983 was selected to examine current research on agronomy, physiology, plant breeding and nutrition. 84 delegates from 15 European countries attended. Throughout the seminar there was a spirit of friendliness and co-operation. Everyone seemed dedicated to doing real justice to the faba bean crop. The organisation of this seminar would not have been possible without the help of my secretary, Mrs. Jeanne Rodwell who undertook most of the administrative and secretarial work. P.D. Hebblethwaite COMPONENTS OF THE YIELD AND YIELD OF VICIA FABA Ph. Plancquaert, J.L. Raphalen Institut Technique des Cereales et des Fourrages 8 Avenue du President Wilson, 75116 Paris, France. ABSTRACT Preliminary experiments have indicated the main factors affecting the yield of winter (6 trials) and spring faba beans (5 trials) : information is presented on the development of pods and flowers, yield and yield components and grain protein content at different locations in France.

Download or read book Geological Survey Bulletin written by and published by . This book was released on 1972 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Generic Names of Fossil Plants 1820 1965 written by Henry Nathaniel Andrews and published by . This book was released on 1970 with total page 366 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 1957 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: