Download or read book Cacao Varieties Resistant to Phytophthora Palmivora written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observations of Resistance to Insects by Some Cacao Varieties written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cacao Diseases written by Bryan A. Bailey and published by Springer. This book was released on 2018-04-07 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the current state of knowledge concerning cacao pathogens and methods for their management. Topics discussed include the history, biology and genetic diversity of Moniliophthora species (which cause witches’ broom and frosty pod rot) and Phytophthora species (which cause black pod rot) that cause diseases resulting in major losses to cacao production. Emerging pathogens such as Cacao swollen shoot virus and Ceratobasidium theobromae (which causes vascular streak dieback) are also discussed in detail, along with many pathogens of significant local concern. Most of these pathogens represent major risks to global cacao production should they expand into new areas, breaking out of their current limited distributions. By considering cacao diseases as a group, similarities in the available tools and techniques used in their management become apparent, as do their limitations. Gaps in our current knowledge of cacao pathogens and the management of the diseases they cause are detailed, and suggestions for future research directions are provided. This insight allows readers to consider cacao disease threats from a more comprehensive, global perspective and paves the way for an improved synergy of efforts between the various research programs, agencies, and industries, both private and public, with vested interests in cacao production, and cacao farmers.
Download or read book Improvement of Cocoa Tree Resistance to Phytophthora Diseases written by Christian Cilas and published by Editions Quae. This book was released on 2004 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main purpose of the overview presented in this book is to provide the international community with knowledge and tools that can be used to breed cocoa trees with greater resistance to Phytophthora. It covers pathogen diversity, epidemiological knowledge, the genetic parameters of resistance observed in the field, and practical breeding aspects. The relevance of different screening tests involving artificial inoculations and the use of molecular markers for the selection of resistant material are widely covered.
Download or read book Phytophthora Disease of Cocoa written by Philip Herries Gregory and published by Longman Publishing Group. This book was released on 1974 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cocoa tree: agronomic aspects. History up to 1930 of Black Pod and other Cocoa Diseases caused by Phytophthora palmivora. Problems of experimentation with cocoa trees. Physiology of the fungus. The disease on roots...
Download or read book Proceedings of the Meeting of the American Regional Group on Phytophthora Palmivora on Cacao written by and published by Bib. Orton IICA / CATIE. This book was released on 1987 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cacao Inter american Cacao Center Observations on Varieties and Cultivars of Cacao in Bahia Brazil written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book cacao Manual written by and published by IICA Biblioteca Venezuela. This book was released on with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phytophthora palmivora in flower cushions old infected pods and leaves of cacao plants written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Methods for Assessing Resistance of Cacao Theobroma Cacao L Cultivars and Hybrids to Phytophthora Palmivora Butler Butler written by J. S. Lawrence and published by . This book was released on 1978 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Resistance in Cacao Theobroma Cacao L to Phytophthora Palmivora Butler Butler written by Edward Clenon Sitapai and published by . This book was released on 1989 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resistance of Cocoa Genotypes to Phytophthora Palmivora in Papua New Guinea written by Josephine Yaupain Saul and published by . This book was released on 1993 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Methods for Assessing Resistance of Cacao Theobroma Cacao L Cultivars and Hybrids to Phytophthora written by J. S. Lawrence and published by . This book was released on 1978 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was conducted to select or develop a rapid and easy but reliable standardized inoculation method for preliminary screening of cacao for resistance to P. palmivora. Previously published methods and various modifications of some of them were examined using the same cacaocultivars and the same P. palmivora isolate throughout. Results from these methods were compared with each other and with data of natural infection in the field. Screening methods examined were: 1)Inoculation of attached pods using zoospore suspension without wounding or mixed mycelial-sporangial suspension with and without wounding, 2) Inoculationof detached pods using zoospore suspension with and without wounding, 3) Inoculation of blocks of pod pericarp tissue with zoosporesuspension, 4) Inoculation with mycelium-agar discs of seedling-stems and branches on the tree, 5) Inoculation of attached leaves with mycelium-agar disc or zoospore suspension, 6) Inoculation of seedling rootswith zoospore suspension, 7) Inoculation of germinated seeds with zoospore suspension or mycelial-sporangial suspension. Methods varied in the degree with they differentiated between resistant and susceptible cultivar reactions, and in consistency over replicated tests. However, the most resistant cultivars (Pound 7, Scavina 6, Scavina 12 and Catongo) were graded as resistant in most methods. The most reliable screening method for use with fruiting trees was point-inoculation of unwounded attached pods using zoospore suspension and recording percentage.
Download or read book Cacao as a Possibility in the Trust Territory of the Pacific written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Taxonomy Ecology Survival and Control of Phytophthora Palmivora P Capsici and P Citrophthora from Cacao Theobroma Cacao L in Brazil written by Marival Lopes Oliveira and published by . This book was released on 1990 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Cocoa Tree Resistance to Phytophthora Diseases written by and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Variability in Phytophthora Palmivora Isolates from Cacao Theobroma Cacao L written by Gregory Omolaja Idosu and published by . This book was released on 1976 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
