Polinizaci N Por Abejas En Cultivos Promisorios De Colombia
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Polinizaci N Por Abejas En Cultivos Promisorios De Colombia
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Author : Ángela Rodríguez C
language : es
Publisher: Universidad Nacional de Colombia
Release Date : 2018-05-18
Polinizaci N Por Abejas En Cultivos Promisorios De Colombia written by Ángela Rodríguez C and has been published by Universidad Nacional de Colombia this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-18 with Gardening categories.
El presente libro hace parte de los resultados del proyecto de investigación Valoración de los servicios de polinización por abejas en algunos frutales promisorios de Colombia, financiado por COLCIENCIAS y la Universidad Nacional de Colombia. Seleccionamos tres frutales promisorios, es decir aquellos cultivados y aprovechados en forma local, y que a pesar de su importancia son poco conocidos: Agraz (Vaccinium meridionale), fuente de antioxidantes; guayaba chamba (Campomanesia lineatifolia) fruto aromático y delicado aprovechado profusamente en Miraflores (Boyacá) y Cholupa (Passiflora maliformis), prima de la granadilla y el maracuyá, pero también poco conocida fuera de Rivera (Huila). Gracias a esta investigación aprendimos que las abejas son los polinizadores importantes de estos tres frutales. Según la estrategia reproductiva del agraz se estima que el 65% de la producción de frutos depende de la polinización por abejas. Por su parte, la chamba es una especie xenógama obligada y los polinizares son esenciales para la formación de frutos y semillas. En cuanto a la cholupa los ensayos de polinización demuestran que la dependencia de las abejas polinizadoras es alta, ya que sin la acción de estos vectores de polen la producción se reduce un 77.7%. Especies de Melipona, Bombus, Xylocopa y Apis mellifera son algunos de los polinizadores importantes de estas especies vegetales. Con este trabajo se contribuye al desarrollo de los objetivos de la Iniciativa Colombiana de Polinizadores (ICPA) sobre conocimiento, uso sostenible y valoración tanto de los polinizadores como del servicio de polinización prestado por abejas en Colombia.
Diversifying Food And Diets
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Author : Jessica Fanzo
language : en
Publisher: Routledge
Release Date : 2013-06-26
Diversifying Food And Diets written by Jessica Fanzo and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-26 with Medical categories.
Currently 868 million people are undernourished and 195 million children under five years of age are stunted. At the same time, over 1 billion people are overweight and obese in both the developed and developing world. Diseases previously associated with affluence, such as cancer, diabetes and cardio-vascular disease, are on the rise. Food system-based approaches to addressing these problems that could enhance food availability and diet quality through local production and agricultural biodiversity often fall outside the traditional scope of nutrition, and have been under-researched. As a consequence, there remains insufficient evidence to support well-defined, scalable agricultural biodiversity interventions that can be linked to improvements in nutrition outcomes. Agricultural biodiversity is important for food and nutritional security, as a safeguard against hunger, a source of nutrients for improved dietary diversity and quality, and strengthening local food systems and environmental sustainability. This book explores the current state of knowledge on the role of agricultural biodiversity in improving diets, nutrition and food security. Using examples and case studies from around the globe, the book explores current strategies for improving nutrition and diets and identifies key research and implementation gaps that need to be addressed to successfully promote the better use of agricultural biodiversity for rural and urban populations and societies in transition.
Pollination Of Cultivated Plants In The Tropics
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 1995
Pollination Of Cultivated Plants In The Tropics written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Gardening categories.
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.
Pot Honey
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Author : Patricia Vit
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-01-17
Pot Honey written by Patricia Vit and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-17 with Science categories.
The stingless bees are one of the most diverse, attractive, fascinating, conspicuous and useful of all the insect groups of the tropical world. This is a formidable and contentious claim but I believe it can be backed up. They are fifty times more species rich than the honey bees, the other tribe of highly eusocial bees. They are ubiquitous in the tropics and thrive in tropical cities. In rural areas, they nest in a diversity of sites and are found on the flowers of a broad diversity of crop plants. Their role in natural systems is barely studied but they almost certainly deserve that hallowed title of keystone species. They are popular with the general public and are greatly appreciated in zoos and gardens. The chapters of this book provide abundant further evidence of the ecological and economic importance of stingless bees.
Bees And Their Role In Forest Livelihoods
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Author : Nicola Bradbear
language : en
Publisher: Non-Wood Forest Products
Release Date : 2009
Bees And Their Role In Forest Livelihoods written by Nicola Bradbear and has been published by Non-Wood Forest Products this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Business & Economics categories.
This volume provides basic information about managing wild bees and on the use of their products. It identifies and describes major bee species and their importance for nature conservation and for sustaining livelihoods of rural people. Bee products are considered at both subsistence and commercial level, and particular attention is given to the potential for further development of managing wild been species in developing countries. The role of bees for pollination of crops and the impact of managing bees on forestry and farming are presented. Wild-bee keeping techniques, honey production and marketing, and the international trade in been products are described with further references and sources of additional information given. Using this publication, readers will better understand the complexities and opportunities for developing apiculture by rural livelihoods. Also published in French.
Biochemistry Of Fruit Ripening
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Author : G.B. Seymour
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Biochemistry Of Fruit Ripening written by G.B. Seymour and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
It is over 20 years since the publication of A.c. Hulme's two volume text on The Biochemistry of Fruits and thei.r Products. Whilst the bulk of the information contained in that text is still relevant it is true to say that our understanding of the biochemical and genetic mech
Diseases Of Tropical Fruit Crops
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Author : Randy C. Ploetz
language : en
Publisher: CABI
Release Date : 2003
Diseases Of Tropical Fruit Crops written by Randy C. Ploetz and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Electronic books categories.
Annotation. Comprehensive information on diseases of the most important tropical fruit cropsChapters are devoted to a single or, in some cases, a related group of host plantsThe history, distribution, importance, symptoms, aetiology, epidemiology and management of diseases of each crop are described in detailThis book offers a comprehensive review of diseases of important tropical and some subtropical fruit crops. The history, distribution, importance, etiology, epidemiology and control of diseases of each host crop are covered, along with brief summaries on the taxonomy, origins and characteristics of each host. Additional information is given on the biology and pathology of the causal agents and on new advances that change or otherwise enhance our understanding of the nature and cause of these diseases. Plant pathologists, plantation and nursery managers, lecturers and those who are involved in tropical agriculture and horticulture will find this an essential reference.
Children Of The Days
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Author : Eduardo Galeano
language : en
Publisher: Hachette UK
Release Date : 2013-04-30
Children Of The Days written by Eduardo Galeano and has been published by Hachette UK this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-30 with Literary Collections categories.
Unfurling like a medieval book of days, each page of Eduardo Galeano's Children of the Days has an illuminating story that takes inspiration from that date of the calendar year, resurrecting the heroes and heroines who have fallen off the historical map, but whose lives remind us of our darkest hours and sweetest victories. Challenging readers to consider the human condition and our own choices, Galeano elevates the little-known heroes of our world and decries the destruction of the intellectual, linguistic, and emotional treasures that we have all but forgotten. Readers will discover many inspiring narratives in this collection of vignettes: the Brazilians who held a "smooch-in" to protest against a dictatorship for banning kisses that "undermined public morals;" the astonishing day Mexico invaded the United States; and the "sacrilegious" women who had the effrontery to marry each other in a church in the Galician city of A Coruna in 1901. Galeano also highlights individuals such as Pedro Fernandes Sardinha, the first bishop of Brazil, who was eaten by Caete Indians off the coast of Alagoas, as well as Abdul Kassem Ismael, the grand vizier of Persia, who kept books safe from war by creating a walking library of 117,000 tomes aboard four hundred camels, forming a mile-long caravan. Beautifully translated by Galeano's longtime collaborator, Mark Fried, Children of the Days is a majestic humanist treasure that shows us how to live and how to remember. It awakens the best in us.
The American Species Of Passifloraceae
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Author : Ellsworth Paine Killip
language : en
Publisher:
Release Date : 1938
The American Species Of Passifloraceae written by Ellsworth Paine Killip and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1938 with Passifloraceae categories.
Sedge Moths Of North America
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Author : John B. Heppner
language : en
Publisher: Routledge
Release Date : 2019-08-08
Sedge Moths Of North America written by John B. Heppner and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-08-08 with Science categories.
Represents the first comprehensive study of these moths in North America north of Mexico using modern systematic procedures involving assessment of a number of morphological and biological characters in relation to their phylogenetic status. This study also represents a worldwide generic study made in conjunction with the revision of the North American species, primarily to ascertain realistic generic limits and the placement of the various genera once included in the heterogeneous concept of the family. Extralimital genera are noted in a catalog of generic names associated with the Glyphipterigidae.