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Author:
Publisher:
ISBN:
Category : Fertilization of plants
Languages : en
Pages : 334
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Book Description
Author:
Publisher:
ISBN:
Category : Fertilization of plants
Languages : en
Pages : 334
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Book Description
Author: Erik Åkerberg
Publisher:
ISBN:
Category : Bees
Languages : en
Pages : 226
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Book Description
Author: Jack Rodney Harlan
Publisher: Cambridge University Press
ISBN: 0521764599
Category : Nature
Languages : en
Pages : 639
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Book Description
Brings together research from a range of fields to address key questions relating to agriculture: its origins and long-term sustainability.
Author: Rosalind James
Publisher: Oxford University Press
ISBN: 0190295554
Category : Technology & Engineering
Languages : en
Pages : 248
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Book Description
For many agricultural crops, bees play a vital role as pollinators, and this book discusses the interplay among bees, agriculture, and the environment. Although honey bees are well recognized as pollinators, managed bumble bees and solitary bees are also critical for the successful pollination of certain crops, while wild bees provide a free service. As bees liberally pass pollen from one plant to the next, they also impact the broader ecosystem, and not always to the benefit of humankind. Bees can enhance the unintentional spread of genes from genetically engineered plants, and may increase the spread of invasive weeds. Conversely, genetically engineered plants can impact pollinators, and invasive weeds can supply new sources of food for these insects. Bees' flower-visiting activities also can be exploited to help spread biological control agents that control crop pests, and they are important for native plant reproduction. Managing bees for pollination is complex and the factors that must be taken into consideration are treated here, including bee natural history, physiology, pathology, and behavior. Furthermore, transporting bees from native ranges to new areas for pollination services can be controversial, and needs to be done only after assuring that it will not disrupt various ecosystems. Even though bees are small, unobtrusive creatures, they play large roles in the ecosystem. The connection between bees and humankind also is symbolic of a broader interconnection between humans and the natural world.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
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Author:
Publisher:
ISBN:
Category : Bee culture
Languages : en
Pages : 442
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Book Description
Author:
Publisher: Bioversity International
ISBN: 9290434643
Category : Crops
Languages : en
Pages : 128
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Book Description
This Manual, based on a regional training course, attempts to clarify most of the concepts and scientific principles for establishing and managing field genebanks. It deals with teh following subjects: the role of field genebank in a complementary conservation strategy, the current status of seed and in vitro and cryopreservation, legal aspects, choice of material and practical aspects of laying out the field plots and planting
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251036594
Category : Gardening
Languages : en
Pages : 216
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Book Description
This bulletin, based on contributions from various contributors and edited by Dr. D.W. Roubik, introduces the reader to various aspects of natural and insect pollination. It discusses the pollinators themselves, and the ecological and economic importance of pollination, as well as applied pollination in temperate, tropical oceanic islands and mainland tropics, and alternatives to artificial pollinator populations. Prospects for the future are also discussed. Chapter 2 deals with successful pollination with pollinator populations, the evaluation of pollinators and floral biology and research techniques. The behaviour of pollinators and plant phenology and various case studies on the preparation of pollinators for use in tropical agriculture are also discussed. A glossary and various appendices regarding cultivated and semi-cultivated plants in the tropics, pollination contracts and levels of safety of pesticides for bees and other pollinators are included.
Author: Commonwealth Secretariat
Publisher: Commonwealth Secretariat
ISBN: 0850927714
Category : Bee culture
Languages : en
Pages : 358
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Book Description
A bibliography on CD-ROM that lists almost all publications that have been written about bees, bee science, beekeeping, hive products etc, for each Commonwealth country in the tropics.
Author: Kash L. Mittal
Publisher: CRC Press
ISBN: 1466562242
Category : Science
Languages : en
Pages : 279
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Book Description
This book chronicles the proceedings of the First International Symposium on Adhesion Aspects of Thin Films, held in Newark, New Jersey, October 28-29, 1999. Films and coatings are used for a variety of purposes a decorative, protective, functional, etc. a in a host of applications. Irrespective of the intended function or application of a film
