H.C. Becker – författare
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3 produkter
3 produkter
Inbunden, Engelska, 1997
1 633 kr
Skickas inom 10-15 vardagar
Aimed at undergraduate and graduate students pursuing courses in applied genetics and plant breeding, but particularly at practising plant breeders, this book assumes only a basic knowledge of genetics and statistics. It expressly seeks to examine and explain quantitative and ecological aspects of plant breeding from a practical point-of-view, using data taken whenever possible from actual breeding trials to illustrate the analytical techniques described. The text is divided into eight chapters, of which the first is a historical introduction to the subject. Topics covered in the remaining chapters include the fitting of genetic models to means and variances and their role in prediction; experimental mating designs and their use in breeding programmes; selection with and without competition; the problems posed by, and the analysis of, genotype-environment interactions in multi-environment trials; stability, adaptability and adaptation; genetic resources and diversity, and ecogeographical breeding; breeding for biotic and abiotic stress. This book should be of interest to plant scientists, agricultural scientists, plant breeders and geneticists.
Häftad, Engelska, 2012
1 681 kr
Skickas inom 10-15 vardagar
Latest figures suggest that approximately 20% of the world's population of six billion is malnourished because of food shortages and inadequate distrib ution systems. To make matters worse, it is estimated that some 75 billion metric tons of soil are removed annually from the land by wind and soil ero sion, much of it from agricultural land, which is thereby rendered unsuitable for agricultural purposes. Moreover, out of a total land area under cultivation 9 6 of approximately 1. 5 x 10 ha, some 12 x 10 ha of arable land are destroyed and abandoned worldwide each year because of unsustainable agricultural practices. Add to this the fact that the world population is increasing at the rate of a quarter of a million per day, and the enormity of the task ahead becomes apparent. To quote the eminent wheat breeder E. R. Sears, It seems clear that plant geneticists can look forward to an expanded role in the 21st century, particularly in relation to plant improvement. The suc cess of these efforts may go a long way towards determining whether the world's increasing billions of humans will be adequately fed. Food for an ever-increasing population will have to be produced not only from an ever-diminishing, but from what will become an ever-deteriorating land resource unless justifiable environmental concerns are taken into account.
E-bok
PDF, Engelska, 20122 036 kr
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Latest figures suggest that approximately 20% of the world''s population of six billion is malnourished because of food shortages and inadequate distrib ution systems. To make matters worse, it is estimated that some 75 billion metric tons of soil are removed annually from the land by wind and soil ero sion, much of it from agricultural land, which is thereby rendered unsuitable for agricultural purposes. Moreover, out of a total land area under cultivation 9 6 of approximately 1. 5 x 10 ha, some 12 x 10 ha of arable land are destroyed and abandoned worldwide each year because of unsustainable agricultural practices. Add to this the fact that the world population is increasing at the rate of a quarter of a million per day, and the enormity of the task ahead becomes apparent. To quote the eminent wheat breeder E. R. Sears, It seems clear that plant geneticists can look forward to an expanded role in the 21st century, particularly in relation to plant improvement. The suc cess of these efforts may go a long way towards determining whether the world''s increasing billions of humans will be adequately fed. Food for an ever-increasing population will have to be produced not only from an ever-diminishing, but from what will become an ever-deteriorating land resource unless justifiable environmental concerns are taken into account.