J. G. Hawkes – författare
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5 produkter
5 produkter
Häftad, Engelska, 1985
686 kr
Skickas inom 7-10 vardagar
First published in 1949, this remarkable book is the culmination of a life-long study of every aspect of the potato. Dr Salaman is concerned first with the history of the potato as a member of the botanical genus Solanum, its adaptation by man as a cultivated plant, and the record of its spread throughout the world; secondly he considers the influence the potato has exerted upon the social structure and economy of different peoples at different times. The archaeological and anthropological evidence for the early significance of the potato among the peoples of Latin America is discussed in detail with numerous illustrations, but the central portion of the book is concerned with the European, and particularly the Irish evidence. Naturally the Great Hunger is the most dramatic single episode in the entire work, and Dr Salaman does full justice to his tragic theme, concluding with the observation that in Ireland 'the potato ended in wrecking both exploited and exploiter'. Elegantly written, with numerous vivid anecdotes, Salaman's History has long enjoyed the status of a classic. This revised impression, with a new introduction and emendations by Professor J. G. Hawkes, enables another generation of readers to sample what Eric Hobsbawm has referred to as 'that magnificent monument of scholarship and humanity'.
Häftad, Engelska, 2008
733 kr
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One of the world centres of crop evolution and origin, Ethiopia has long been recognized as an important area of diversity for several major and various minor crops. Based on an international conference held in Addis Ababa, this book describes how this genetic diversity is of vital importance in breeding varieties of crops with desirable characteristics such as increased resistance to pests and diseases and greater adaptation to heat and drought. The three main sections in the book consider the Ethiopian centre of diversity, germplasm collection and conservation in Ethiopia and the evaluation and utilization of Ethiopian genetic resources. A broad range of food and feed crops and plants of medicinal and industrial importance are discussed, both at a national and international level. A brief account of those conservation strategies and genebank problems unique to Ethiopia is also given. The importance of Ethiopia's plant genetic resources to world agriculture has been demonstrated on more than one occasion.
Del 2 - International Biological Programme Synthesis Series
Crop Genetic Resources for Today and Tomorrow
Häftad, Engelska, 2011
693 kr
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This 1975 book deals with one of the world's fastest disappearing natural resources - the invaluable reservoir of genetic variability in our cultivated plants which have evolved since our forebears began to domesticate them some 10,000 years ago. The preservation of these 'genetic resources', as they have come to be called, is vital to mankind. Without them the geneticists and plant breeders cannot breed the new varieties needed to feed the world's population by providing more disease-resistant strains of our food plants. This volume explores topics such as how to collect and preserve this variation. It ends with a section on how these activities are planned on a world scale through the medium of FAO and other international agencies, and with the participation of scientists from developed and developing countries. This book will be of use as an intelligently written work of much historic value.
Inbunden, Engelska, 1991
1 688 kr
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One of the world centres of crop evolution and origin, Ethiopia has long been recognized as an important area of diversity for several major and various minor crops. Based on an international conference held in Addis Ababa, this book describes how this genetic diversity is of vital importance in breeding varieties of crops with desirable characteristics such as increased resistance to pests and diseases and greater adaptation to heat and drought. The three main sections in the book consider the Ethiopian centre of diversity, germplasm collection and conservation in Ethiopia and the evaluation and utilization of Ethiopian genetic resources. A broad range of food and feed crops and plants of medicinal and industrial importance are discussed, both at a national and international level. A brief account of those conservation strategies and genebank problems unique to Ethiopia is also given. The importance of Ethiopia's plant genetic resources to world agriculture has been demonstrated on more than one occasion.
E-bok
PDF, Engelska, 2013356 kr
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Reproductive Biology and Taxonomy of Vascular Plants is a collection of papers presented at the Conference on Reproductive Biology and Taxonomy of Vascular Plants, held at the Department of Botany, University of Birmingham on April 23-25, 1965. The conference primarily explores the reproductive biology of flowering plants and ferns to arrive at a better understanding of variation patterns and modes of evolution. This book is divided into six chapters and begins with a discussion on the breeding systems, variation and adaptation. The next chapters survey the practical implications of knowledge of breeding systems and other aspects of the reproductive biology of flowering plants, as well as the pollination mechanisms in orchids and the evolution of this family in relation to insect evolution. These chapters include an account of the foraging behavior of honey bees and its importance to the botanist in delineating the behavior of the insects that pollinate the plants. Other chapters deal with the mechanisms of plant dispersal and establishment, the aspects of seed dormancy, and germination and reproductive capacity related to evolutionary processes. The concluding chapters explore the many aspects of apomixis in its wider sense and survey how the variation patterns of apomicts were due to this special mode of reproduction. This book is directed primarily to botanists.