www.asic2012costarica.org

THE 24TH INTERNATIONALCONFERENCE ON COFFEE SCIENCE

November 11-16, 2012

AGRONOMY I BIOTECHNOLOGYPHYSIOLOGY I CHEMISTRYPROCESSING I COFFEE & HEALTHSUSTAINABILITY I CLIMATE CHANGE

GENOMICS & GENETICS

PROGRAMME & ABSTRACTS

COFFEE QUALITY I PESTS & DISEASES

www.asic2012costarica.org

Sponsors:

SMSServicios de Manejo Sostenibles

THE 24TH INTERNATIONAL CONFERENCE ON COFFEE SCIENCE4

ASIC Board 2012PresidentAndrea Illy

Illycaffé S.p.A.

Scientific SecretaryMaurice Blanc

ASIC Secretariat

Administrative Secretary - Member of Scientific CommitteeMaurice Blanc

Deputy Scientific Secretary (agronomy and biotechnology)André Charrier

Montpellier SupAgro

Member of Scientific CommitteeAstrid Nehlig

Inserm U405 - Faculté de Médecine

Member of Scientific CommitteeBenoit Bertrand

CIRAD

Member of Scientific CommitteeHerbert van der Vossen

Plant Breeding & Seed Consultant

MemberHelmut Guenther

Kraft Foods

MemberFurio Suggi Liverani

Illycaffé S.p.A.

MemberJames Teri

MemberSteven BiesterveldSara Lee DE NV

MemberJames R. Coughlin

Coughlin & Associates

MemberElke Gerhard-Rieben

Nested Ltd.

THE 24TH INTERNATIONAL CONFERENCE ON COFFEE SCIENCE5

Mrs. Xinia Chaves Quiros - PresidentVice Minister, Ministry of Agriculture and Livestock of Costa Rica

Mr. Victor Villalobos - Vice PresidentGeneral Director, Inter-American Institute for Cooperation on Agriculture

Mr. Ronald Peters Seevers - SecretaryExecutive Director, Costa Rica`s Coffee Institute ICAFE

Executive Committee

Mrs. Laura Esquivel, Board Directors ICAFE, Coordinator Mr. Mario Arroyo, ICAFE

Mr. Guido Vargas, Board Directors ICAFE Mr. José Ml. Hernando, Roasters Chamber, Segafredo

Mr. Rafael Hernández, Volcafe Mr. Diego Montenegro, IICA Mr. Steve Aronson, Café Britt

Mr. Eric Poncon, ECOM Mr. Eric Thormaehlen, Coricafe, National Chamber of Exporters

Mrs. Grace Mena, Deli Café Mr. Luis Zamora Quirós, Ministry of Agriculture and Livestock

Technical Committee

Mr. Jorge Ramírez, CICAFE, Coordinator Mrs. Helga Rodriguez, Board Directors, ICAFE

Mr. Edgardo Alpizar, ECOM Mr. Armando García, PROMECAFE

Mrs. Nelly Vasquez, CATIE Mr. Elias De Melho, CATIE

Mr. Jorge Mora, INTA Mrs. Marta Valdez, CENIBIOT

Mr. Carlos Mario Rodríguez, STARBUCKS

Scientific Committee

Mrs. Astrid Nehlig - Human physiology Mr. James Coughlin - Toxicology and risks Mrs. Adriana Farah - Chemistry and quality Mr. Marino Petracco - Chemistry and quality

Mr. André Charrier – Genomics and Biotechnology Mr. Benoît Bertrand – Genetics and Breeding Mrs. Maria do Ceu Silva – Pathology and IPM

Mr. Edgardo Alpizar – Agronomy Mr. Herbert van der Vossen – Ecophysiology and agronomy

General Organization

Costa Rica`s Coffee Institute ICAFE

Organizing Committee

POSTER.SESSIONSWednesday, November 14, 2012

www.asic2012costarica.org

THE 24TH INTERNATIONALCONFERENCE ON COFFEE SCIENCE

November 11-16, 2012

Biotechnology & Agronomy

THE 24TH INTERNATIONAL CONFERENCE ON COFFEE SCIENCE365

Spectrometry (ICP-MS) to determine the isotopic composition of strontium (Sr) in the coffee bean. The results obtained demonstrated that the isotope ratios of Sr and O of the coffee bean are a promising tool for its traceability, as these elements reflect the local geology and hydrology. In order to expand the understanding of how environmental factors determine the isotopic composition of the different elements on the green coffee bean, further research was developed focusing the region of Hawaii. The results allowed for the differentiation of the different coffee-producing regions of Hawaii. In addition, IRMS was also applied to measure the oxygen isotopic composition of the caffeine molecule (δ18Ocaff), previously extracted from the green coffee bean. O isotopes of caffeine molecule originate from the metabolic water of plant tissues, and accordingly results showed that this organic specific compound may be relevant for studies on the coffee plant ecophysiology.

Carla Rodrigues wishes to thank Fundação para a Ciência e a Tecnologia for a grant (SFRH/BD/28354/2006) and SIBAE (Stable Isotopes in Biosphere-Atmospheric-Earth System Research) programme (COST Action ES0806) for a STSM (Short Term Scientific Mission) grant. Financial support by the Austrian Science Foundation (FWF START grant 267 N11) is gratefully acknowledged. This work was financed by the project Pursuing Green Coffee Geographic Origin Discrimination through Relations between Isotopes and Environmental Factors (IsoGeoCoffee) from FCT (PTDC/AGR-AAM/104357/2008).

CAMPBELL, Leslie*, SOTO, Gabriela**, ISAAC, Marney E.*

*University of Toronto, Toronto, Canada, ** Centro Agrono mico Tropical de Investigacion y Enseñanza, CATIE, Costa Rica.

Growing concern regarding the long-term environmental sustainability of intensive C. arabica (coffee) production is increasing the re-evaluation of more sustainable methods of coffee production. Agroforestry coffee production methods present one potentially viable alternative, but further research on interspecies shade and nutrient interactions particularly at the leaf level is needed to inform efficient and effective system design. A study was undertaken to compare the adaptation of resource acquisition strategies of 10 year old coffee plants under full sun and legume (Erythrina sp. and Chloroleucon sp.) shaded conditions in combination with organic and conventional fertilization regimes at a Costa Rican experimental research site. Shade levels below biannually pruned, conventionally fertilized Erythrina elicited the strongest adaptive response in coffee as evidenced by improved photosynthetic performance at both high (Amax = 4.632 μmol photons m-2 s-1; P = 0.0185) and low (light compensation point = 17 μmol photons m-2 s-1) light levels relative to coffee grown beneath Chloroleucon or full sun. These coffee plants associated with Erythrina were also found to have a higher average leaf area (39.29 cm2; P = 0.0070), and dry mass (0.210 g; P = 0.0570) than any of the other treatment combinations tested. Organic fertilization was found to significantly improve soil surface available P levels in comparison to conventional fertilization (P = 0.0300) regardless of shade species, though conventional fertilization elicited a stronger shade response in the coffee plants. Based on study findings, shade mechanisms appear to be the most important drivers of aboveground coffee adaptation in coffee agroforestry systems, though proper soil nutrient management in low nutrient environments also appears to augment coffee response to microclimate conditions.

PA.303MANAGEMENT EFFECTS ON PHOTOSYNTHETIC CAPACITY AND LEAF LEVEL NUTRITION IN TROPICAL SHADE AGROFORESTRY SYSTEMS: THE CASE OF COFFEE IN COSTA RICA

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