Planting and Sowing Dates, 1973-1976 PDF Download

Author: Henry Gilbert
Publisher:
ISBN:
Category : Sowing
Languages : en
Pages : 38

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Book Description

Author:
Publisher:
ISBN:
Category : Agricultural libraries
Languages : en
Pages : 178

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Book Description

Author: E. Duveiller
Publisher: CIMMYT
ISBN: 9789706480019
Category :
Languages : en
Pages : 388

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Book Description
Helminthosporium diseases of wheat: summary of group discussions and recommendations; Evolution of the nomenclature used for Helminthosporium spp. causing leaf blight of wheat; Crop management and breeding for control of Pyrenophora tritici-repentis causing yellow spot of wheat in Australia; Constraints on the integrated management of spot blotch of wheat; Components of the spot disease cycle; Leaf blight diseases and associated soilborne fungal pathogens of wheat in South and Southeast Asia; Foliar blights of wheat in India: germplasm improvement and future challenges for sustainable, high yelding wheat production; Distribution of pathogens causing foliar blight of wheat in India and neighboring countries; Occurrence and significance of spot blotch in Bangladesch; Disease incidence and yield loss due to foliar blight of wheat in nepal; Tan spot in Western Canada; Diseases caused by Bipolaris sorokiniana and Drechslera tritici-repentis in Hungary; Population structure and epidemiology of Bipolaris sorokiniana in the Rice-wheat cropping pattern of Nepal; Tan spot in Central Asia; Breeding for foliar blight resistance in heilongjiang province, China; Incidence and current management of spot blotch of wheat in China; Spot bloch and tan spot of wheat in Paraguay; Research on Pyrenophora tritici-repentis tan spot of wheat in Uruguay; Improving control of tan spot caused by Pyrenophora tritici-repentis in the Mixteca Alta of Oaxaca, Mexico; Importance of spot blotch caused by Bipolaris sorokiniana in Bolivia; Major foliar diseases of triticale in Morocco; Effect of crop rotation and straw mulch inoculation on tan spot and root rot in bread and durum wheat; Breeding for resistance to spot blotch in wheat: global perspective; Evaluating spot blotch resistance of wheat: improving disease assessment under controlled conditions and in the field; Results of the South Asia regional Helminthosporium leaf blight and yield experiment, 1993-94; Breeding for resistance to Helminthosporium blights in Nepal: strategies and genetic gains; Resistance to spot blotch in spring wheat: breeding and genetic studies; Effect of single D-Genome chromosome substitutions from bread wheat on spot blotch resistance of hexaploid triticale; Repeatability of tan spot resistance evaluation in wheat; New approach for clustering breedings genotypes using production variables, yield losses and a double-digit disease scale; Screening wheat for Bipolaris sorokiniana resistance in Vietnan; Ran spot resiatance in tetraploid and hexaploid wheat; Novel genetic diversity for stress tolerance in the triticease: strategic avenues and applied potentials; Evaluating Southern cone wheat germoplasm for spot blotch and ta spot; Variation in resistance to Bipolaris sorokiana and Magnaporthe grisea in wheat grisea in wheat plants regenerated throught embryogenesis; Evaluating spot blotch resistance traits in wheat and related species; In vitro selection for spot blotch resistance in wheat; Identification and inheritance of resistance to foliar blight of wheat; Root rot of wheat: inoculation and screening techniques, yield loss assessment, and germplasm evaluation; Transformation technologies available for enhamcing fungal resistance in wheat; Molecular analyses of toxin (s) produced by Pyrenophora tritici-repentis; Role of host metabolism in action of necrosis toxin from Pyrenophora tritici-repentis; Fungi associated with foliar blight of wheat in warm areas; Characterization of the Pyrenophora tritici-repentis necrosis toxin and a folding precursor; Diversity of Pyrephora tritici-repentis isolates from warm wheat growing areas: pathogenicity, toxin production, and RAPD analysis; Role of root exudates and toxins in susceptibility of yemeni wheat varieties to Cochliobolus sativus; Characterization od Cochliobolus sativuis isolates from the UK and yemen; A xylanase gene from Cochliobolus sativus; Leaf spot diseases of wheat in a conservation tillage study; Control of leaf blights of wheat by elimination of the inoculum source; Incidence and severity of leaf-spotting diseases of spring wheat in Southern Manitoba; Tan spot of wheat in Argentina: importance and disease management strategies; Influence of agronomic practice on foliar blight, and identification of alternate host in the rice-wheat cropping system; Evaluation of tan spot research in Morocco; Controlling leaf spot of wheat throught nutrient management; Phytosanitary effect of the combined application on green manure and antaginistic bacterium Bacillus subtilis on Bipolaris sorokiniana; Seed pathology of tan spot; Wheat reaction to kernel infection by Pyrenophora tritici-repentis and effect on the subsequent crop; List of participants.

Author: United States. Forest Service
Publisher: Forest Service
ISBN:
Category : Gardening
Languages : en
Pages : 1240

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Author: R.P. Buckley
Publisher: Springer Science & Business Media
ISBN: 9400979940
Category : Science
Languages : en
Pages : 165

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Book Description
Early research on ant-plant interactions in Australia was largely confined to the economically important problem of ants harvesting surface-sown pasture seed (e. g. Campbell 1966). The report by Berg (1975) of widespread myrmecochory in Australia, and a burst of overseas research, stimulated research on a range of ant-plant interactions in Australia. This book summarizes such research and presents reeent and current work on seed harvesting, myrmecochory, ant-epiphytes, extrafloral nectaries, ant-plant-homopteran systems, and the influence of vegetation on ant faunas. I hope that it will encourage further work in these and related areas, and that the review and bibliography of ant-plant interactions in the rest ofthe world will serve as a useful source for those entering the field. The richness of Australia's flora and ant fauna render it a particularly interesting continent for the study of interactions between them. As immediately apparent from the list of contents, ant-seed interactions are particularly significant in Australia. This is not surprising for a relatively dry continent bearing a largely sc1erophyllous plant cover. Future research, however, especially in the tropical north, is like1y to reveal further types of interaction, perhaps corresponding to those characteristic of the tropics elsewhere, or perhaps distinctively Australian. Some of the chapters have been shortened and modified considerably from the original manuscripts, but the ideas and results presented are, of course, those of the individual authors.

Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388

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Author: William Shurtleff; Akiko Aoyagi
Publisher: Soyinfo Center
ISBN: 1948436213
Category : Soybean
Languages : en
Pages : 2659

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Book Description
The world's most comprehensive, well documented and well illustrated book on this subject. With extensive subject and geographical index. 318 photographs and illustrations - many in color. Free of charge in digital PDF format on Google Books.

Author: Josef Palti
Publisher: Springer Science & Business Media
ISBN: 3642682669
Category : Technology & Engineering
Languages : en
Pages : 259

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Book Description
The development of a crop, and therefore its health, is always the result of interplay between biological and environmental factors, as influenced by human agency. In other words, crop health is a highly complex affair. This book is concerned with only one group of agents affecting crop health, the pathogens, and not with animal pests or direct effects of physiological or weather factors. Even within this one group, however, the interaction of causal agents with environmental and biotic factors is highly complex. No less complex is the effect of cultural practices on the crop and its health. There is probably no major practice that does not affect diverse facets of crop growth, which in turn affects crop/pathogen relationships. Thus tillage se quentially affects depth and rate of root development, hence nutrient uptake, hence general plant size and habit as well as crop climate and crop susceptibility. Irri gation affects all these parameters, and facilitates crop growth under diverse macro climatic conditions, with all the ensuing implications for disease development. In this book an attempt is made to superimpose one set of complexities, the cul tural practices, on another such set, crop health. This may seem overambitious, not to say foolhardy, unless we remember that it has been done by farmers, consciously or unconsciously, ever since the beginnings of agriculture. We are here chiefly try ing to rationalize traditional practices, review modern research on the development of further practices, and assess the place of the latter in integrated disease control.

Author: W.E. Splittstoesser
Publisher: Springer Science & Business Media
ISBN: 0442239718
Category : Science
Languages : en
Pages : 380

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Book Description
This manual is designed for home gardeners and small commercial vegetable growers. The author provides information on the scientific concepts upon which vegetable growing is based and on practical methods for growing vegetables. Features include a chapter on the nutritional value of vegetables and sections on hydroponics, the economics of gardening, the Delaney clause, food additives, natural toxicants and organic vegetables. The author covers soil propagation and composition, identification of pests and the use of pesticides, plant growth, planting schedules, vegetable classification and the preservation of vegetables.

Author: Slavko Borojević
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3112708350
Category : Technology & Engineering
Languages : en
Pages : 368

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Book Description
No detailed description available for "Principles and Methods of Plant Breeding".