MAIZE Full Proposal

Total Page:16

File Type:pdf, Size:1020Kb

MAIZE Full Proposal Table of Contents Section 1: MAIZE AFS Phase-II ................................................................................................ 1 1.1 Rationale and scope ..................................................................................................................1 1.2 Goals, objectives, targets ..........................................................................................................4 1.3 Impact pathway and theory of change .................................................................................... 11 1.4 Gender ................................................................................................................................... 14 1.5 Youth ..................................................................................................................................... 19 1.6 Program structure and flagship projects .................................................................................. 19 1.7 Cross CRP collaboration and site integration ............................................................................ 22 1.8 Partnerships and comparative advantage ................................................................................ 27 1.9 Evidence of demand and stakeholder commitment ................................................................. 30 1.10 Capacity development .......................................................................................................... 31 1.11 Program management and governance ................................................................................. 34 1.12 Intellectual asset management.............................................................................................. 36 1.13 Open access management ..................................................................................................... 37 1.14 Communication strategy ....................................................................................................... 37 1.15 Risk management ................................................................................................................. 38 1.16 Budget summary................................................................................................................... 39 Section 2: Flagship Projects .................................................................................................. 42 FP1: Enhancing MAIZE’s R4D Strategy for Impact ................................................................. 42 2.1 Rationale, scope ..................................................................................................................... 42 2.2 Objectives and targets ............................................................................................................ 44 2.3 Impact pathway and theory of change .................................................................................... 46 2.4 Science quality ........................................................................................................................ 52 2.5 Lessons learnt and unintended consequences ......................................................................... 54 2.6 Clusters of activity (CoA) ......................................................................................................... 55 2.7 Partnerships ........................................................................................................................... 59 2.8 Climate change ....................................................................................................................... 61 2.9 Gender ................................................................................................................................... 62 2.10 Capacity development .......................................................................................................... 62 2.11 Intellectual asset and open access management .................................................................... 63 2.12 FP management .................................................................................................................... 64 2.13 Budget summary................................................................................................................... 64 FP2: Novel Diversity and Tools for Increasing Genetic Gains ................................................. 66 2.1 Rationale, scope ..................................................................................................................... 66 2.2 Objectives and targets ............................................................................................................ 67 2.3 Impact pathway and theory of change .................................................................................... 68 2.4 Science quality ........................................................................................................................ 74 2.5 Lessons learnt and unintended consequences ......................................................................... 74 2.6 Clusters of activity (CoA) ......................................................................................................... 74 2.7 Partnerships ........................................................................................................................... 79 2.8 Climate change ....................................................................................................................... 79 2.9 Gender ................................................................................................................................... 80 2.10 Capacity development .......................................................................................................... 80 2.11 Intellectual asset and open access management .................................................................... 81 2.12 FP management .................................................................................................................... 82 2.13 Budget summary................................................................................................................... 82 FP3: Stress Tolerant and Nutritious Maize ............................................................................ 84 2.1 Rationale, scope ..................................................................................................................... 84 2.2 Objectives and targets ............................................................................................................ 86 2.3 Impact pathway and theory of change .................................................................................... 88 2.4 Science quality ........................................................................................................................ 94 2.5 Lessons learnt and unintended consequences ......................................................................... 96 2.6 Clusters of activity (CoA) ......................................................................................................... 97 2.7 Partnerships ......................................................................................................................... 101 2.8 Climate change ..................................................................................................................... 102 2.9 Gender ................................................................................................................................. 102 2.10 Capacity development ......................................................................................................... 103 2.11 Intellectual asset and open access management .................................................................. 104 2.12 FP management .................................................................................................................. 104 2.13 Budget summary................................................................................................................. 105 FP4: Sustainable Intensification of Maize-based Systems for Improved Smallholder Livelihoods ........................................................................................................................ 107 2.1 Rationale, scope ................................................................................................................... 107 2.2 Objectives and targets .......................................................................................................... 108 2.3 Impact pathway and theory of change .................................................................................. 113 2.4 Science quality ...................................................................................................................... 116 2.5 Lessons learned and unintended consequences ..................................................................... 118 2.6 Clusters of activity (CoA) ....................................................................................................... 119 2.7 Partnerships ......................................................................................................................... 123 2.8 Climate change ..................................................................................................................... 124 2.9 Gender ................................................................................................................................. 125 2.10 Capacity development
Recommended publications
  • Information to Users
    INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6” x 9" black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. University Microfilms International A Bell & Howell Information Company 3 0 0 North Z eeb Road. Ann Arbor. Ml 4 8106-1346 USA 313/761-4700 800/521-0600 Order Number 9130518 Studies of epidemiology of maize streak virus and itsCicadulina leafhopper vectors in Nigeria Mbey-yame, Asanzi Christopher, Ph.D.
    [Show full text]
  • Performance of Popcorn Introductions for Agronomic Characters, Grain Yield and Popping Qualities in the Forest and Derived Savannah Agro-Ecologies of Nigeria
    doi:10.14720/aas.2019.114.1.6 Original research article / izvirni znanstveni članek Performance of popcorn introductions for agronomic characters, grain yield and popping qualities in the forest and derived savannah agro-ecologies of Nigeria Oloruntoba OLAKOJO 1, 2, Gbadebo OLAOYE 1, Adewole AKINTUNDE 3 Received April 25, 2019; accepted August 14, 2019. Delo je prispelo 25. aprila 2019, sprejeto 14. avgusta 2019. Performance of popcorn introductions for agronomic char- Predstavitev uspešnosti uvajanja pokovke na osnovi njenih acters, grain yield and popping qualities in the forest and de- agronomskih lastnosti, pridelka zrnja in kakovosti nabreka- rived savannah agro-ecologies of Nigeria nja v gozdnih in prehodno-savanskih agroekosistemih Nige- Abstract: The study focus on the evaluation of popcorn rije lines for their yield and agronomic potentials. Genetic materi- Izvleček: Raziskava je bile osredotočena na ovredno- als were evaluated under irrigation in a three-replicate in a Ran- tenje linij pokovke glede na njen pridelek in agronomske domized Complete Block Design (RCBD) with a commercial lastnosti. Genetski material je bil ovrednoten ob namakanju variety as check. Two seeds were planted per hole using two- v naključnem bločnem poskusu s tremi ponovitvami v prim- row plots of 5 m long with inter and intra-row spacing of 0.75 m erjavi s komercialno sorto. Po dve semeni sta bili posejani v x 0.5 m, respectively in two locations viz: Ibadan and Ikenne vrstah na ploskvah dolžine 5 m, z medvrstno razdaljo 0,75 m representing the forest and savannah agro-ecologies of Nige- in znotrajvrstno razdaljo 0,5 m, na lokacijah Ibadan in Ikenne, ria respectively.
    [Show full text]
  • Diseases-Of-Maize
    MAIZE DISEASES Presented by Dr. S. Parthasarathy, Assistant Professor Department of Plant Pathology Downy mildew -Peronosclerospora sorghi (Sclerophthora macrospora ) Crazy top The most characteristic symptom is the proliferation of leafy structures from the ears and/or tassels, In many cases, leafy protrusions occur in only the ears resulting in a mass of strap-like leaves protruding from the ear zone. Affected plants may also have profuse tiller development. Management Seed treatment with Metalaxyl fungicide metalaxyl @ 6.0 g/kg (or) Apron 35 WP @ 2.5 g/kg Rogue out infected plants at early stage. Spray with Metalaxyl 1g/lit or Metalaxyl + Mancozeb @ 2.5 g/lit. Philippine downy mildew - Peronosclerospora philippinensis Java downy mildew – Peronosclerospora maydis Sorghum Downy mildew - Peronosclerospora sorghi Sugarcane Downy mildew – Peronosclerospora sacchari Brown stripe downy mildew- Scleropthora rayssiae var. zeae Symptoms Lesions start developing on lower leaves as narrow chlorosis or yellow stripes,3-7 mm wide, with well defined margin and are delimited by the veins. The stripes later become reddish to purple. Lateral development of lesions causes sever striping and blotching. Seed development may be suppressed, plant may die prematurely if blotching occurs prior to flowering. Sporangia on the leaves appear as a downy whitish to wooly growth on both surface of the lesions. Floral or vegetative parts are not malformed, and the leaves do not shred. Management Resistant varieties -Prabhat, Kohinoor, ICI-703, PAC-9401, PMZ-2, SEEDTEC-2331. Seed treatment with Acylalanine fungicide metalaxyl @ 6.0 g/kg. Rogue out infected plants at early stage. Control - Apron 35 WP, @ 2.5 g/kg as seed treatment.
    [Show full text]
  • Diagnosing Maize Diseases in Latin America
    Diagnosing Maize Diseases in Latin America Carlos Casela, Bobby (R.B.) Renfro, Anatole F. Krattiger Editors Published in collaboration with PIONEER HI-BRED INTERNATIONAL, INC. No. 9-1998 Diagnosing Maize Diseases in Latin America Carlos Casela, Bobby (R.B.) Renfro, Anatole F. Krattiger Editors Published in collaboration with PIONEER HI-BRED INTERNATIONAL, INC. No. 9-1998 Published by: The International Service for the Acquisition of Agri-biotech Applications (ISAAA). Copyright: (1998) International Service for the Acquisition of Agri-biotech Applications (ISAAA). Reproduction of this publication for educational or other non-commercial purposes is authorized without prior permission from the copyright holder, provided the source is properly acknowledged. Reproduction for resale or other commercial purposes is prohibited without the prior written permission from the copyright holder. Citation: Diagnosing Maize Diseases in Latin America. C.Casela, R.Renfro and A.F. Krattiger (eds). 1998. ISAAA Briefs No. 9. ISAAA: Ithaca, NY and EMBRAPA, Brasilia. pp. 57. Cover pictures: Pictures taken during the field visits and the diagnostics training workshop in Brazil by ISAAA (K.V. Raman). Available from: The ISAAA Centers listed below. For a list of other ISAAA publications, contact the nearest Center: ISAAA AmeriCenter ISAAA AfriCenter ISAAA EuroCenter ISAAA SEAsiaCenter 260 Emerson Hall c/o CIP John Innes Centre c/o IRRI Cornell University PO 25171 Colney Lane PO Box 933 Ithaca, NY 14853 Nairobi Norwich NR4 7UH 1099 Manila USA Kenya United Kingdom The Philippines [email protected] Also on: www.isaaa.cornell.edu Cost: Cost US$ 10 per copy. Available free of charge for developing countries. Contents Introduction and Overview: Diagnosing Maize Diseases with Proprietary Biotechnology Applications Transferred from Pioneer Hi-Bred International to Brazil and Latin America................................................................1 Anatole Krattiger, Ellen S.
    [Show full text]
  • Zea Mays Subsp
    Unclassified ENV/JM/MONO(2003)11 Organisation de Coopération et de Développement Economiques Organisation for Economic Co-operation and Development 23-Jul-2003 ___________________________________________________________________________________________ English - Or. English ENVIRONMENT DIRECTORATE JOINT MEETING OF THE CHEMICALS COMMITTEE AND Unclassified ENV/JM/MONO(2003)11 THE WORKING PARTY ON CHEMICALS, PESTICIDES AND BIOTECHNOLOGY Cancels & replaces the same document of 02 July 2003 Series on Harmonisation of Regulatory Oversight in Biotechnology, No. 27 CONSENSUS DOCUMENT ON THE BIOLOGY OF ZEA MAYS SUBSP. MAYS (MAIZE) English - Or. English JT00147699 Document complet disponible sur OLIS dans son format d'origine Complete document available on OLIS in its original format ENV/JM/MONO(2003)11 Also published in the Series on Harmonisation of Regulatory Oversight in Biotechnology: No. 4, Industrial Products of Modern Biotechnology Intended for Release to the Environment: The Proceedings of the Fribourg Workshop (1996) No. 5, Consensus Document on General Information concerning the Biosafety of Crop Plants Made Virus Resistant through Coat Protein Gene-Mediated Protection (1996) No. 6, Consensus Document on Information Used in the Assessment of Environmental Applications Involving Pseudomonas (1997) No. 7, Consensus Document on the Biology of Brassica napus L. (Oilseed Rape) (1997) No. 8, Consensus Document on the Biology of Solanum tuberosum subsp. tuberosum (Potato) (1997) No. 9, Consensus Document on the Biology of Triticum aestivum (Bread Wheat) (1999) No. 10, Consensus Document on General Information Concerning the Genes and Their Enzymes that Confer Tolerance to Glyphosate Herbicide (1999) No. 11, Consensus Document on General Information Concerning the Genes and Their Enzymes that Confer Tolerance to Phosphinothricin Herbicide (1999) No.
    [Show full text]
  • Crop Protection Programme
    CROP PROTECTION PROGRAMME The development of management strategies for maize streak virus disease R7429 (ZA0310) FINAL TECHNICAL REPORT 1 April 1999 – 30 June 2000 Professor R J Cooter Natural Resources Institute University of Greenwich Page Plates …………………………………………………………………………. (i) Contents ………………………………………………………………………. 1 Acronyms and Dedication……………………………………………………… 3 Executive summary…………………………………………………………… 4 Background…………………………………………………………………….. 4 Project Purpose……………………………………………………………….. 5 Expected Impact……………………………………………………………….. 6 Research Activities……………………………………………………………. 7 1.1 Monitor seed production activities in Namukubembe, Bugodi and selected FOSEM sites over the 1999a and 1999b seasons ……………………………………………………… 8 1.2 Facilitate farmer-researcher interaction with a view to improving the seed production system …………………………. 8 1.3 Describe farmers’ existing systems for selecting and producing maize seed ………………………………………………. 9 2. On-station trial comparing farmer-produced seed with certified seed ………………………………………………….. 9 3. Provide appropriate training of village-based trainers at Namulonge ……………………………………………… 10 3.1 Pre-training…………………………………………………………. 10 3.2 NAARI training workshop ………………………………………… 10 3.3 Village-based training ……………………………………………… 10 3.4 The use of video ……………………………………………………. 10 4. Monitoring performance of village-based trainers as an indicator of whether the approach is appropriate as a means of scaling-up ………………………………. 11 Outputs Output 1: Improved farmer seed production system developed and validated ………………………………………………….
    [Show full text]
  • Studies on Sweet Corn: Stewart’S Wilt Forecasting, the Effect of Maize Dwarf Mosaic on Foliar Diseases, and Herbicide Sensitivity
    STUDIES ON SWEET CORN: STEWART’S WILT FORECASTING, THE EFFECT OF MAIZE DWARF MOSAIC ON FOLIAR DISEASES, AND HERBICIDE SENSITIVITY BY MICHAEL DEVIN MEYER THESIS Submitted in partial fulfillment of the requirements for the degree of Master of Science in Crop Sciences in the Graduate College of the University of Illinois at Urbana-Champaign, 2010 Urbana, Illinois Adviser: Professor Jerald K. Pataky ABSTRACT Diseases and sensitivity to P450-metabolized herbicides can limit the production of high quality sweet corn. Separate studies were done to determine the probability of exceeding 1% and 5% incidence of Stewart’s wilt on sweet corn with different reactions to Pantoea stewartii, the effect of maize dwarf mosaic (MDM) on eight foliar diseases, and the effect of hybrid CYP genotype on sweet corn yield following postemergence applications of mesotrione or nicosulfuron. Stewart’s disease can be forecasted using the Stevens, Stevens-Boewe, or Iowa State forecasts. These forecasts assume a high degree of host susceptibility. Host resistance affects the incidence and severity of disease, and therefore can affect the accuracy forecasts of Stewart’s disease. Levels of host resistance affected the incidence of systemic seedling wilt within ranges of winter temperatures used by each of the forecasts. Frequency distributions of Stewart’s wilt incidence on moderate and resistant hybrids did not differ among the three temperature ranges above -2.8ºC (27ºF). Conversely, distributions of Stewart’s wilt incidence on susceptible hybrids differed among each of the four ranges of winter temperature from the Stevens-Boewe forecast (i.e., >0.6ºC, -1.1º to 0.6ºC, -2.8º to -1.1ºC, and <-2.8ºC).
    [Show full text]
  • The Effect of Potyvirus Resistance on Maize Lethal Necrosis (Mln)
    THE EFFECT OF POTYVIRUS RESISTANCE ON MAIZE LETHAL NECROSIS (MLN) THESIS Presented in Partial Fulfillment of the Requirements for the Degree Master of Science in the Graduate School of The Ohio State University By VICTORIA BIKOGWA BULEGEYA Graduate Program in Horticulture and Crop Science The Ohio State University 2016 Master's Examination Committee: Professor DAVID M. FRANCIS “Advisor” Professor MARGARET G. REDINBAUGH “Co-advisor” Professor PETER R. THOMISON Copyrighted by VICTORIA BIKOGWA BULEGEYA 2016 Abstract Maize lethal necrosis (MLN) is a viral disease of corn (Zea mays L.) currently affecting farmers in East and Central Africa. MLN is caused by a combined infection of Maize chlorotic mottle virus (MCMV) and any potyvirus. In East Africa, MLN was reported to be caused by a combined infection of MCMV and Sugarcane Mosaic virus (SCMV). Most of African maize germplasm is susceptible to the disease and there are no known sources of resistance. Resistance to MCMV has not been well studied but tolerant germplasm has been reported in the US. Resistance to the potyvirus pathogens of maize is well studied and sources of resistance are known and published. This study utilize available potyvirus resistance sources to control MLN and to link potyvirus resistance to white maize endosperm color which is preferred by consumers in Sub Saharan Africa. Lines with different QTL for potyvirus resistance were screened against MLN using artificial inoculation and natural infestation. Genotypes used for the study were Recombinant inbred lines (RIL) derived from Oh1VI, a line known for multi-virus resistance, and Oh28 which is a susceptible parent. Genotypes, with QTL for potyvirus resistance on chromosome 3, 6 and 10 alone and in combination were selected and screened against MLN.
    [Show full text]
  • Extended Summaries
    13th Asian Maize Conference and Expert Consultation on Maize for Food, Feed, Nutrition and Environmental Security Ludhiana, India October 8-10, 2018 EXTENDED SUMMARIES ORGANIZERS 13th Asian Maize Conference and Expert Consultation on Maize for Food, Feed, Nutrition and Environmental Security Editors: BM Prasanna, Aparna Das and Kelah K. Kaimenyi Ludhiana, India October 8-10, 2018 EXTENDED SUMMARIES ORGANIZERS PLATINUM SPONSOR: GOLD SPONSORS: SILVER SPONSORS: BRONZE SPONSORS: R Correct citation: BM Prasanna, Aparna Das and Kelah K. Kaimenyi (editors). 2018. Book of Extended Summaries, 13th Asian Maize Conference and Expert Consultation on Maize for Food, Feed, Nutrition and Environmental Security. Ludhiana, India, October 8 – 10, 2018. CIMMYT, Mexico D.F. This publication’s copyright (© 2018) is shared by the International Maize and Wheat Improvement Center (CIMMYT), the Indian Council of Agricultural Research (ICAR), the ICAR-Indian Institute of Maize Research (IAR-IIMR), Punjab Agricultural University (PAU), the CGIAR Research Program MAIZE, and the Borlaug Institute for South Asia (BISA). All rights are reserved by these institutions. Rights to all original content supplied for this publication remain with the original authors. The designations employed in the presentation of materials in this publication do not imply the expression of any opinion whatsoever on the part of the Organizers of the Conference, concerning the legal status of any country, territory, city, or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The opinions expressed are those of the author(s), and are not necessarily those of CIMMYT, ICAR, ICAR-IIMR, PAU, CRP MAIZE or BISA. The organizers encourage fair use of this material.
    [Show full text]
  • Maize Streak Virus: I
    Maize Streak Virus: I. Host Range and Vulnerability of Maize Germ Plasm VERNON D. DAMSTEEGT, Research Plant Pathologist, Plant Disease Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Frederick, MD 21701 ABSTRACT were obtained from USDA Regional Damsteegt, V. D. 1983. Maize streak virus: I. Host range and vulnerability of maize germ plasm. Plant Introduction stations, state Plant Disease 67:734-737. experiment stations, and commercial seed companies. Authenticity of species One hundred thirty-eight grass accessions, 529 maize hybrids, inbreds, exotic lines, and sweet corn or line designation was determined by the cultivars, several Sorghum, Tripsacum, and Zea species, and major cereal crop cultivars were tested seed suppliers. The world collections of for susceptibility to maize streak virus disease in both seedling and six- to eight-leaf stages. Tripsacum spp., Sorghum spp., and Zea Fifty-four grass species were symptomatic hosts (verified by back-assays to corn) including 14 annual and 31 perennial hosts not reported previously. All maize lines were susceptible in the spp. were obtained from Regional Plant seedling stage except Revolution and J-2705, which were highly resistant after the four-leaf stage. Introduction stations, CIMMYT, and D. Two Tripsacum species and several Tripsacum plant introductions, nursery selections, and exotic H. Timothy's Tripsacum nursery at Tripsacum collections were susceptible. Although most Zea mays accessions were susceptible, a few North Carolina State University. collections of Z. mays subsp. parviglumis var. huehuetenangensisfrom Guatemala were resistant. Test plants were started in 10-cm clay Cultivars of commonly grown cereal crops varied in susceptibility. Several grass species in the pots within the containment area.
    [Show full text]
  • Phytosanitary Situation of Maize Streak Virus in the Main Maize Production Zones of Cameroon
    Agricultural Sciences, 2021, 12, 339-353 https://www.scirp.org/journal/as ISSN Online: 2156-8561 ISSN Print: 2156-8553 Phytosanitary Situation of Maize streak virus in the Main Maize Production Zones of Cameroon Grace Annih Mbong1,2, Christopher Suh3*, Hervé Djomo Sime1, Mariette Anoumaa1, Theophile Fonkou1, Lysette Laure Chimi Nkombo3, Silvestro Meseka4, P. Lava Kumar4, Menkir Abebe4 1Faculty of Sciences, University of Dschang, Dschang, Cameroon 2Ministry of Agriculture and Rural Development, Yaounde, Cameroon 3Institute of Agricultural Research for Development, Yaoundé, Cameroon 4International Institute of Tropical Agriculture, Ibadan, Nigeria How to cite this paper: Mbong, G.A., Suh, Abstract C., Djomo Sime, H., Anoumaa, M., Fon- kou, T., Chimi Nkombo, L.L., Meseka, S., Maize streak caused by the Maize streak virus (MSV, genus Mastrevirus) is Kumar, P.L. and Abebe, M. (2021) Phyto- transmitted by Cicadulina spp., and is responsible for considerable maize sanitary Situation of Maize streak virus in yield losses in all maize production zones in Africa, including Cameroon. A the Main Maize Production Zones of Ca- meroon. Agricultural Sciences, 12, 339-353. survey was conducted in 3 agro-ecological zones (AEZ) of Cameroon (Suda- https://doi.org/10.4236/as.2021.124022 no-Sahelian: zone I, Western Highlands: zone III and Bimodal Rainforest: zone V) between November 2017 and November 2019 to determine the status Received: February 18, 2021 of streak disease in maize farms. The incidence and severity were determined Accepted: April 6, 2021 Published: April 9, 2021 in 90 maize fields, 30 fields per AEZ; the effect of lightning on the disease was also assessed using 15 fields under shade and 15 opened fields per AEZ.
    [Show full text]
  • Maize Streak, Maize Stripe and Maize Mosaic Virus Diseases QJ in the Tropics (Africa and Islands ■ H in the Indian Ocean)
    Maize streak, maize stripe and maize mosaic virus diseases QJ in the tropics (Africa and islands ■ h in the Indian Ocean) Dossier prepared by f C. JOURDAN-RUF, J.-L. MARCHAND, M. PETERSCHMITT ■ Impact of maize virus @®CA, BP 5035, 1 • 34032 Montpellier Cedex 1,iranee diseases and current research B. REYNAUD, J. DINTINGER I C tR i0 € A , station, de Ligne Pqljdis, ■ Vectors ■ 97410 Saint-Pierre, Réunion, Fw ce The main research scientists that and epidemiology collaborated in these studies are: G. KONATE, O. TRAORE and S. TRAORE ■ Maize virus diagnosis and (Burkina Faso); #> f r; M. ESSEH-YOVO ¡Togo); C. THE (Cameroon): maize streak virus variability H. PHAM ¡Zimbabwe); P. MARKHAM (UK); C. BUDUCA, B. CLERGET and A. RODIER ■ Maize resistance [Réurtion, France) = } M i ' and breeding Photos D. Debert: Bagging maize inflorescenles. p /Vaize fields in Burkina Fasfx Photo B. Reynaud: Peregrínuâmaidts. Impact of maize virus diseases and current research Regions Madagascar, Réunion, and central in East Africa, Tanzania, Kenya, Africa. The disease is also sometimes Mauritius and Réunion, but MStpV found in West Africa, particularly has caused very little damage. The The three main tropical maize in Mali, Togo, Côte d'Ivoire virus was recently identified viruses are: maize streak virus (MSV), and Senegal. In West Africa, in West Africa (Côte d'Ivoire, maize stripe virus (MStpV) and maize there was a widespread outbreak Togo, Nigeria, Burkina Faso and mosaic virus (MMV). Their impacts of MSV in 1983-1984, sometimes Cameroon). However, it seems to vary markedly between countries completely destroying all maize have had a greater impact in Latin (Figures 1 & 2).
    [Show full text]