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Author: Sheila Connolly
Publisher:
ISBN: 9781322755427
Category : Large type books
Languages : en
Pages : 433
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Book Description
Author: Sheila Connolly
Publisher:
ISBN: 9781322755427
Category : Large type books
Languages : en
Pages : 433
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Crops and climate
Languages : en
Pages : 20
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Book Description
Author: Pamela C. Ronald
Publisher: Oxford University Press
ISBN: 0199756694
Category : Science
Languages : en
Pages : 228
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Book Description
By the year 2050, Earth's population will double. If we continue with current farming practices, vast amounts of wilderness will be lost, millions of birds and billions of insects will die, and the public will lose billions of dollars as a consequence of environmental degradation. Clearly, there must be a better way to meet the need for increased food production. Written as part memoir, part instruction, and part contemplation, Tomorrow's Table argues that a judicious blend of two important strands of agriculture--genetic engineering and organic farming--is key to helping feed the world's growing population in an ecologically balanced manner. Pamela Ronald, a geneticist, and her husband, Raoul Adamchak, an organic farmer, take the reader inside their lives for roughly a year, allowing us to look over their shoulders so that we can see what geneticists and organic farmers actually do. The reader sees the problems that farmers face, trying to provide larger yields without resorting to expensive or environmentally hazardous chemicals, a problem that will loom larger and larger as the century progresses. They learn how organic farmers and geneticists address these problems. This book is for consumers, farmers, and policy decision makers who want to make food choices and policy that will support ecologically responsible farming practices. It is also for anyone who wants accurate information about organic farming, genetic engineering, and their potential impacts on human health and the environment.
Author: Mann, Michael
Publisher: Intl Food Policy Res Inst
ISBN:
Category : Political Science
Languages : en
Pages : 25
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Book Description
Timely and accurate agricultural impact assessments for droughts are critical for designing appropriate interventions and policy. These assessments are often ad hoc, late, or spatially imprecise, with reporting at the zonal or regional level. This is problematic as we find substantial variability in losses at the village-level that are missing when reporting even at the zonal level. In this paper we propose a new data fusion method combining remotely-sensed data with agricultural survey data that might address these limitations. We apply the method to Ethiopia, which is regularly hit by droughts and is a substantial recipient of ad hoc imported food aid. We then utilize remotely-sensed data obtained near mid-season to predict substantial crop losses of greater than or equal to 25 percent due to drought at the village level for five primary cereal crops. We train machine learning models to predict the likelihood of losses and explore the most influential variables. On independent samples, the models identify substantial drought loss cases with up to 70 percent accuracy by mid- to late-September. We believe the proposed models could be used to help monitor and predict yields for disaster response teams and policy makers, particularly with further development of the models and integration of newly available high resolution remotely-sensed data, such as the Harmonized Landsat Sentinel (HLS) data set
Author:
Publisher:
ISBN:
Category : Crops and climate
Languages : en
Pages : 990
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Book Description
Final yearly issue includes index of special articles. December through March issues contain reports of snow and ice conditions.
Author: Anoop K Nair
Publisher: Notion Press
ISBN:
Category :
Languages : en
Pages : 102
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Book Description
The Story Goes This Way
Author: Nicolas Denancé
Publisher: Frontiers Media SA
ISBN: 2889199029
Category : Botany
Languages : en
Pages : 160
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Book Description
Phytopathogenic bacteria of the Xanthomonas genus cause severe diseases on hundreds of host plants, including economically important crops, such as bean, cabbage, cassava, citrus, hemp, pepper, rice, sugarcane, tomato or wheat. Diseases occurring in nature comprise bacterial blight, canker, necrosis, rot, scald, spot, streak or wilt. Xanthomonas spp. are distributed worldwide and pathogenic and nonpathogenic strains are essentially found in association to plants. Some phytopathogenic strains are emergent or re-emergent and, consequently, dramatically impact agriculture, economy and food safety. During the last decades, massive efforts were undertaken to decipher Xanthomonas biology. So far, more than one hundred complete or draft genomes from diverse Xanthomonas species have been sequenced (http://www.xanthomonas.org), thus providing powerful tools to study genetic determinants triggering pathogenicity and adaptation to plant habitats. Xanthomonas spp. employ an arsenal of virulence factors to invade its host, including extracellular polysaccharides, plant cell wall-degrading enzymes, adhesins and secreted effectors. In most xanthomonads, type III secretion (T3S) system and secreted effectors (T3Es) are essential to bacterial pathogenicity through the inhibition of plant immunity or the induction of plant susceptibility (S) genes, as reported for Transcription Activation-Like (TAL) effectors. Yet, toxins can also be major virulence determinants in some xanthomonads while nonpathogenic Xanthomonas species do live in sympatry with plant without any T3S systems nor T3Es. In a context of ever increasing international commercial exchanges and modifications of the climate, monitoring and regulating pathogens spread is of crucial importance for food security. A deep knowledge of the genomic diversity of Xanthomonas spp. is required for scientists to properly identify strains, to help preventing future disease outbreaks and to achieve knowledge-informed sustainable disease resistance in crops. This Research Topic published in the ‘Plant Biotic Interactions’ section of Frontiers in Plant Science and Frontiers in Microbiology aims at illustrating several of the recent achievements of the Xanthomonas community. We collected twelve manuscripts dealing with comparative genomics or T3E repertoires, including five focusing on TAL effectors which we hope will contribute to advance research on plant pathogenic bacteria.
Author:
Publisher:
ISBN:
Category : Editorials
Languages : en
Pages : 894
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Author:
Publisher:
ISBN:
Category : Commerce
Languages : en
Pages : 1126
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Author: William Crowell Edgar
Publisher:
ISBN:
Category : Northwestern miller
Languages : en
Pages : 34
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Book Description
