Your Search Results(showing 558)

    • Trusted Partner
      Agronomy & crop production
      December 2004

      Seed Fate

      Predation, Dispersal and Seedling Establishment

      by Edited by Pierre M Forget, Joanna E Lambert, Philip E Hulme, Stephen B Vander Wall

      This book presents current knowledge of seed fate in both natural and human-disturbed landscapes, from various regions of the world. Habitats considered range from mountain and arid deserts in the temperate zone, to savanna and lowland rainforests in tropical regions of the world. Particular attention is paid to plant diversity conservation when seed removal is affected by factors such as hunting, habitat fragmentation or intensive logging. Contributors include leading scientists involved in research on seed ecology and on animal-plant relationships from the perspective of both primary and secondary seed dispersal, and predation.

    • Trusted Partner
      Agriculture & related industries
      June 2011

      African Seed Enterprises

      Sowing the Seeds of Food Security

      by Edited by Paul Van Mele, J W Bentley, Robert G Guéi

      In most developing countries, good quality seed is hard to obtain and farmers struggle to save seed from one year to the next. Instead, they increasingly turn to public or private enterprises that multiply, store and distribute seed. African Seed Enterprises takes a people-centred look at the companies, public agencies and family farms that are taking on this role and making a difference to food security across Africa. Case studies are arranged by country, and each chapter includes a profile of the agricultural and policy environment that surrounds these enterprises and affects their development. Each case is unique and presents its own set of lessons, and as a whole, this wide range of experiences is a rich source of data and ideas for future enterprise, offering valuable insights for policy makers, academics and non-governmental organizations throughout the world.

    • Trusted Partner
      Agricultural science
      December 1997

      Forage Seed Production, Volume 1

      Temperate Species

      by Edited by Daphne T Fairey, John G Hampton

      The grasses and legumes grown in pastures and rangelands form the basis of the worldwide animal production industry. Some species also have a significant role in the sport and leisure industry, for playing surfaces such as golf courses and football fields. It is therefore vitally important to ensure that seed supplies of appropriate species are available for use on a commercial scale. This book is published in association with the International Herbage Seed Production Research Group. It brings together leading researchers and along with its companion volume Forage Seed Production Volume 2: Tropical and Subtropical Species (to be published in late 1998), provides the definitive resource for all those concerned with breeding and profitable seed production for grasses and legumes used within grazing systems or recreation and amenity provision. The book is in two parts. Part 1 covers all aspects relevant to seed production, including improving seed yield and quality, crop management, harvesting, processing and the international seed trade. Part 2 consists of eleven case studies from eight countries covering three continents. This book and its companion should be read by all seed scientists involved in the breeding and commercial production of grass and legume seed. They also represent a valuable asset for all commercial seed suppliers. Additionally, the information presented within the book is important for all students and lecturers within departments of agriculture and plant breeding.

    • Trusted Partner
      Horticulture
      October 2011

      Agricultural Seed Production

      by Raymond A T George

      A practical coverage of the principles of producing seeds for the main agricultural crops, this book emphasises producing optimal quality seed, and applies to small and large scale farms worldwide. Cereals such as wheats, rice, barley, rye and maize are covered along with pulses, legumes, oil seed rape and soybean. Coverage includes principles of production such as pollination, agronomy issues such as site selection and cultivar purity, seed processing, drying and storage. A focus on global food security is maintained throughout.

    • Trusted Partner
      Science & Mathematics
      February 2017

      Seed Biology and Yield of Grain Crops

      by Dennis B Egli

      This new edition of an established title examines the determination of grain crop yield from a unique perspective, by concentrating on the influence of the seed itself. As the food supply for an expanding world population is based on grain crops harvested for their seeds, understanding the process of seed growth and its regulation is crucial to our efforts to increase production and meet the needs of that population. Yield of grain crops is determined by their assimilatory processes such as photosynthesis and the biosynthetic processes in the seed, which are partly regulated within the seed itself. Providing a timely update in this field and highlighting the impact of the seed on grain crop yields, this book: · Describes all aspects of seed growth and development, including environmental and genetic effects on growth rate and length of the filling period. · Discusses the role of the seed in determining the two main yield components: individual seed weight and number of seeds per unit area. · Uses the concepts and models that have been developed to understand crop management and yield improvement. Substantially updated with new research and further developments of the practical applications of the concepts explored, this book is essential reading for those concerned with seed science and crop yield, including agronomists, crop physiologists, plant breeders, and extension workers. It is also a valuable source of information for lecturers and graduate students of agronomy and plant physiology. ; This is a new edition of an established title examines the determination of grain crop yield from a unique perspective, by concentrating on the influence of the seed itself. ; Chapter 1: IntroductionChapter 2: Seed Growth and DevelopmentChapter 3: Seed Growth Rate and Seed-Fill Duration: Variation and Regulation.Chapter 4: Yield Components-Regulation by the Seed Chapter 5: The Seed, Crop Management, and YieldChapter 6: The Way Forward

    • Trusted Partner
      Technology, Engineering & Agriculture
      September 2018

      Seed Production in Oil Palm

      A Manual

      by Eddy S Kelanaputra, Steven P. C. Nelson, Umi Setiawati, Baihaqi Sitepu, Fazrin Nur, Brian P Forster, Abdul R. Purba, Brian P Forster, Peter D. S. Caligari

      This is a practical guide to seed germination in oil palm for both breeding and genetic studies as well as commercial seed production. Oil palm is the top oil crop in the world and this manual provides step-by-step illustrated methods, written by practitioners actively engaged in oil palm seed production and breeding. Presenting sound practices based on scientific innovation and knowledge, this guide brings together the many aspects of seed germination in oil palm in one place. Promoting green, eco-friendly agriculture, this book covers: Health and safety considerations Pollination and harvesting Seed preparation, viability testing and moisture testing Seed processing for commercial production and breeding Based on experience and protocols, this is an invaluable manual for students and researchers in agriculture, plant breeders, growers and end users interested in the practicalities of oil palm seed production. It is also a valuable resource for training, for those entering a career in oil palm and as a reference for managers , to ensure best practices in maximising sustainability and production of this important crop.

    • Trusted Partner
      Botany & plant sciences
      January 2006

      Testing Methods for Seed-Transmitted Viruses

      Principles and Protocols

      by Sven E Albrechtsen

      This practical guide covers the commonly used detection methods for seed-transmitted viruses and viroids that affect both tropical and temperate crops. It contains 25 complete step-by-step procedures for biological, serological and molecular techniques to detect and identify such viruses. Combining helpful practical notes with more detailed explanations of the principles behind the techniques, the book describes the general characteristics of seed-transmitted viral diseases and discusses outlines for the organization and interpretation of seed health assays. The techniques reviewed are also applicable to non-seed-transmitted viral agents.

    • Trusted Partner
      Agricultural science
      May 1998

      Seed Biology and the Yield of Grain Crops

      by Dennis B Egli

      The food supply to an expanding world population is based on grain crops, i.e. crops harvested for their seeds. Therefore, understanding the process of seed growth and its regulation is crucial in our efforts to increase production, in order to meet the needs of that population. Yield is determined by the ability of crop plants to use their assimilatory processes such as photosynthesis and also the biosynthetic processes in the seed, which are partly regulated within the seed itself. This book examines the determination of grain crop yield from a new and unique perspective, by concentrating on the influence of the seed. All aspects of seed growth and development are described, including environmental and genetic effects on growth rate and length of filling period. The effect of the seed on the two main yield components, individual seed weight and number of seeds per unit area, is then discussed. Finally, the concepts and models developed are evaluated in terms of crop management. The book is essential reading for those concerned with seed science and crop yield, including agronomists, crop physiologists, plant breeders, and extension workers. It will also be a valuable source of information for lecturers and graduate students of agronomy and plant physiology.

    • Trusted Partner
      Applied ecology
      February 2002

      Seed Dispersal and Frugivory

      Ecology, Evolution and Conservation

      by Edited by Douglas J Levey, Wesley R Silva, Mauro Galetti

      Until recently, the production of fruits by plants, their consumption by animals (frugivory) and the relevance of these to seed dispersal have attracted less attention than topics such as pollination biology. However, since the 1970s they have started to gain more prominence and now give rise to more research funding, seminal papers and international symposiums. This book contains chapters adapted from the Third International Symposium-Workshop on Frugivores and Seed Dispersal held in August 2000 in Rio Quente, Brazil.

    • Trusted Partner
      Agricultural science
      August 2007

      Seed Dispersal

      Theory and its Application in a Changing World

      by Edited by Andrew J Dennis, Ronda J Green, Eugene W Schupp, David A Westcott

      Fresh concepts in the study of seed dispersal are spurring a host of exciting new questions, new answers to old questions, new methods and approaches, and a reinvigoration of the field.Seed Dispersal: Theory and its Application in a Changing World presents both recent advances and reviews of current knowledge demonstrating the vigour and vibrancy of the field. It provides new perspectives and directions at a time when efforts to meet growing environmental challenges threatening natural systems are of utmost importance.

    • Trusted Partner
      Mycology, fungi (non-medical)
      January 1989

      Seed-borne Diseases of Rice

      by P C Agarwal

      paper on seed-borne diseases of rice

    • Trusted Partner
      August 2022

      Gac Fruit: Advances in Cultivation, Utilisation, Health Benefits and Processing Technologies

      by Minh Nguyen, Tuyen Chan Kha

      Gac fruit, Momordica cochinchinensis Spreng, is rich in nutrients such as carotenoids (particularly beta-carotene and lycopene), fatty acids, vitamin E, polyphenol compounds and flavonoids. This book provides the latest research on this fruit, from cultivation through to processing technologies for health products. It addresses several techniques on propagation and cultivation in order to increase the production and quality of Gac fruit, including traditionally used parts of the fruit (aril) and those whose value has not yet been maximized (peel, pulp and seed). This plant has the potential to be a high value crop, particularly as parts of the fruit can be processed into nutrient supplements and/or natural colorants. It has an exceptional potential in the world carotenoids market of about US$ 1.4 billion (2017), which will be growing steadily, up to US$ 6.9 billion by 2026. As such, this book contains special emphasis on: · Improving production of Gac fruit · Novel extraction of Gac oil rich in beta-carotene and lycopene from aril and peel. · Encapsulation of Gac oil rich in beta-carotene and lycopene. Practical applied technologies such as microwave drying, heat pump drying, freeze drying, ultrasound assisted extraction, supercritical CO2 extraction, encapsulation techniquesare all presented. This is an essential reference text for academics, researchers and graduate students in cultivation, food processing, science and nutrition. Product developers in health food areas in the food industry will also find it valuable.

    • Trusted Partner
      Animal husbandry
      March 1998

      Energy Metabolism of Farm Animals

      by Edited by Kelvin J McCracken, E F Unsworth, A R G Wylie

      The Proceedings of the 14th Symposium on Energy Metabolism of Farm Animals, held in Northern Ireland in September 1997 comprises 85 original contributions by leading scientists from over 20 countries around the world. In keeping with previous Symposia in the series, held under the auspices of the European Association for Animal Production, this book contains papers which provide the latest research on the energy metabolism and other aspects of the physiology of a wide variety of farmed animals. Highlights include a comprehensive review of the current state of research on leptins and their potential applications in animal production, and a large section relating to organ and tissue metabolism, with major contributions from the USA, UK, France, Germany and Denmark. An important strength of the book is the diversity of species covered. For example, the sections on modelling and feed evaluation relate to pigs, sows, broiler chickens, laying hens, turkeys, lambs, beef and dairy cattle and fish. There are also substantial contributions on lactation and reproduction, growth, environmental aspects and maintenance. This book is essential reading for research workers in animal science, particularly those concerned with nutrition and feed evaluation.

    • Trusted Partner
      Horticulture
      October 2009

      Vegetable Seed Production

      by Raymond A T George

    • Trusted Partner
      Horticulture
      April 2000

      Seed Biology

      Advances and Applications

      by Gregory E Welbaum. Edited by Michael J Black, Kent J Bradford Jorge Vázquez-Ramos.

      This book discusses the biology of seeds.

    • Trusted Partner
      Science & Mathematics
      December 2013

      Seeds

      The Ecology of Regeneration in Plant Communities

      by Robert S Gallagher, Robert S Gallagher

      The 3rd edition of Seeds: The Ecology of Regeneration in Plant Communities highlights the many advances in the field of seed ecology and its relationship to plant community dynamics that have taken place in recent years. The new edition also features chapters on seed development and morphology, seed chemical ecology, implications of climate change on regeneration by seed, and the functional role of seed banks in agricultural and natural ecosystems. The book is aimed at advanced level students and researchers in the fields of seed science, seed ecology and plant ecology. ; This 3rd edition highlights many advances in the field of seed ecology and its relationship to plant community dynamics over recent years. It features chapters on seed development and morphology, seed chemical ecology, implications of climate change on regeneration, and the functional role of seed banks in agricultural and natural ecosystems. ; I: ContributorsII: PrefaceIII: Overview of Seed Development, Anatomy and Morphology1: Fruits and Frugivory2: The Ecology of Seed Dispersal3: Seed Predators and Plant Population Dynamics4: Light-Mediated Germination5: The Chemical Environment in the Soil Seed Bank6: Seed Dormancy7: The Chemical Ecology of Seed Persistence in Soil Seed Banks8: Effects of Climate Change on Regeneration by Seeds9: Functional Role of the Soil Seed Bank in Agricultural Ecosystems10: Functional Role of the Soil Bank in Natural CommunitiesIV: Index

    • Trusted Partner
      Fantasy & magical realism (Children's/YA)
      2014

      El rapto de Eloisa (The abduction of Eloisa)

      by Jorge Esquinca, Chiara Carrer

      A girl and her mother, three crows, spikes on a field, and clouds draw the first scene. But the girl, like all children, expect her great adventure of being lost. The mistery kidnaps her. It leads her to an underground dream where the dream is reality and darkness is clear as a diamond light. Oneiric, musical story, opened to “what is heard inside”, this book invites us to discover that beyond the veil that is spread between the world and the things, “each sleeping seed, each root, each stem, every flower that rises,” and us, entirely.

    • Trusted Partner
      Agricultural science
      October 2003

      Biology of Seeds

      Recent Research Advances

      by Edited by Gregorio Nicolas, Kent J Bradford, Daniel Come, Hugh W Pritchard

      This book presents edited and revised papers from the seventh International Workshop on Seeds, held in Salamanca, Spain, in May 2002. The key topics addressed include seed development, germination and dormancy, as well as desiccation, seed ecology and seed biotechnology.

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