6,102 Works

Replication Data for: Projected shifts in Coffea arabica suitability among major global producing regions due to climate change

Oriana Ovalle, Peter Läderach, Christian Bunn, Michael Obersteiner & Götz Schroth
The dataset has 2194 coffee location points. Most of the data came from projects developed by the International Center for Tropical Agriculture (CIAT) in collaboration with other research centers and producer cooperatives. We modeled the global distribution of Arabica coffee under changes in climatic suitability by 2050s as projected by 21 global circulation models.

Replication Data for: Distributions, ex situ conservation priorities, and genetic resource potential of crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas]

Colin K Khoury, Bettina Heider, Nora P Castañeda Álvarez, Harold A Achicanoy, Chrystian C Sosa, Richard E Miller, Robert W Scotland, John R Wood, Genoveva Rossel, Lauren A Eserman, Robert L Jarret, Craig Yencho, Vivian Bernau, Henry Juarez, Steven Sotelo, Stef De Haan & Paul C Struik
Crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas] have the potential to contribute to breeding objectives for this important root crop. Uncertainty in regard to species boundaries and their phylogenetic relationships, the limited availability of germplasm with which to perform crosses, and the difficulty of introgression of genes from wild species has constrained their utilization. Here, we compile geographic occurrence data on relevant sweetpotato wild relatives and produce potential distribution models...

Replication Data for: Crop wild relatives of pigeonpea [Cajanus cajan (L.) Millsp.]: Distributions, ex situ conservation status, and potential genetic resources for abiotic stress tolerance

Colin K Khoury, Nora P Castañeda Álvarez, Harold A Achicanoy, Chrystian C Sosa, Vivian Bernau, Mulualem T Kassa, Sally L Norton, Jos G Van Der Maesen, Hari D Upadhyaya, Julian Ramirez Villegas, Andy Jarvis & Paul C Struik
Pigeonpea [Cajanus cajan (L.) Millsp.] is a versatile, stress-tolerant, and nutritious grain legume, possessing traits of value for enhancing the sustainability of dry sub-tropical and tropical agricultural systems. The use of crop wild relatives (CWR) in pigeonpea breeding has been successful in providing important resistance, quality, and breeding efficiency traits to the crop. Current breeding objectives for pigeonpea include increasing its tolerance to abiotic stresses, including heat, cold, drought, and waterlogging. Here we assess the...

Replication Data for: Increasing homogeneity in global food supplies and the implications for food security

Colin K Khoury, Anne D Bjorkman, Hannes Dempewolf, Julian Ramirez Villegas, Luigi Guarino, Andy Jarvis, Loren H Rieseberg & Paul C Struik
The narrowing of diversity in crop species contributing to the world’s food supplies has been considered a potential threat to food security. However, changes in this diversity have not been quantified globally. We assess trends over the past 50 y in the richness, abundance, and composition of crop species in national food supplies worldwide. Over this period, national per capita food supplies expanded in total quantities of food calories, protein, fat, and weight, with increased...

Near-infrared spectra for the AfSIS Sentinel Sites in Tanzania

Leigh Winowiecki, Scholastica Morrison, Elvis Weullow, Andrew Sila & Tor Gunnar Vågen
The Africa Soil Information Service (AfSIS), was a project led by the Tropical Soil Biology and Fertility Institute (TSBF) of the International Center for Tropical Agriculture (CIAT), based in Nairobi, in collaboration with several partners including the World Agroforestry Centre (ICRAF). The AfSIS projectf aimed to narrow sub-Saharan Africa’s (SSA) soil information gap and provide a consistent baseline for monitoring soil ecosystem services. Sentinel sites were established and top- and subsoil samples were collected from...

Crop improvement, adoption and impact of improved bean varieties in Sub Saharan Africa

Muthoni R Andriatsitohaina & Robert Andrade
The crop improvement research effort of the Consultative Group on International Agricultural Research (CGIAR) centers and their national agricultural research systems (NARS) partners has had a large impact on world food production. Although bean impact has been documented in a number of past studies, the last comprehensive study of the international crop improvement effort, organized by the Standing Panel for Impact Assessment (SPIA, formerly the Impact Assessment and Evaluation Group), was based on data collected...

Estudio de adopción de variedades de arroz en Perú

Jennifer Twyman, Carolina González, Juliana Muriel, Stephany Suárez, Diana C Lopera & Ricardo Labarta
La Alianza Global para la Investigación en arroz (GRiSP-siglas en inglés), es un programa de investigación del CGIAR que lidera el Centro Internacional de Agricultura Tropical (CIAT) para América Latina. Con el interés de conocer y evaluar la adopción de variedades de arroz (tecnologías desarrolladas por CIAT en el marco de GRiSP), se iniciaron una serie de estudios socioeconómicos en Latinomaerica, iniciando con Perú en el 2012. Dentro de uno de sus objetivos, está integrar...

Replication Data for: Major constraints and trends for common bean production and commercialization; establishing priorities for future research

Jesús José Rodríguez De Luque & Bernardo Creamer
In order to identify the principal constraints and trends for common bean production and commercialization and the priorities for future common bean research in Africa, Latin America and the Caribbean (LAC), a priority setting process was developed at the International Center for Tropical Agriculture (CIAT). The results suggested that the principal research included breeding and selecting for several traits, such as drought tolerance and water use efficiency, improved yields, and consumer acceptance. Additionally, the results...

Cassava Breeding Trials - Edaphoclimatic Zone 1: Lowland Tropics; Long drought; Low to Medium Precipitation

International Center For Tropical Agriculture
Cassava germplasm development at CIAT is centered on the development of improved gene pools for specific edapho-climatic zones with importance for cassava production. The most relevant ecosystems are the semi-and and sub-humid tropics, for which the majority of efforts are devoted. The main selection activity is conducted in sites selected to represent the conditions of the target ecosystem. For each zone, a recurrent selection program with a progressive set of stages is followed. As the...

Knowledge Gaps between Farmers and Scientists: A Case Study on Perceptions and Knowledge on Arabica Coffee Pests and Diseases of Mount Elgon, Uganda

Theresa Liebig, Laurence Jassogne, Eric Rahn, Peter Läderach, Hans Michael Poehling, Patrick Kucel, Piet Van Asten & Jacques Avelino
In this paper, we present a case study on coffee production in Uganda, a sector depending mostly on smallholder farming facing a simultaneous and increasing number of socio-ecological pressures. The objectives of this study were (i) to examine and relate FPK on Arabica Coffee Pests and Diseases (CPaD) to altitude and the vegetation structure of the production systems; (ii) to contrast results with perceptions from experts and (iii) to validate results with field observations, in...

Cassava Breeding Trials - Edaphoclimatic Zone 2: Lowland Tropics; Acid Soils; Medium to High Precipitation

International Center For Tropical Agriculture
Cassava germplasm development at CIAT is centered on the development of improved gene pools for specific edapho-climatic zones with importance for cassava production. The most relevant ecosystems are the semi-and and sub-humid tropics, for which the majority of efforts are devoted. The main selection activity is conducted in sites selected to represent the conditions of the target ecosystem. For each zone, a recurrent selection program with a progressive set of stages is followed. As the...

Replication Data for: Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)

Michael B Kantar, Chrystian C Sosa, Colin K Khoury, Nora P Castañeda Álvarez, Harold A Achicanoy, Vivian Bernau, Nolan Kane, Laura Marek, Gerald Seiler & Loren H Rieseberg
Crop wild relatives (CWR) are a rich source of genetic diversity for crop improvement. Combining ecogeographic and phylogenetic techniques can inform both conservation and breeding. Geographic occurrence, bioclimatic, and biophysical data were used to predict species distributions, range overlap and niche occupancy in 36 taxa closely related to sunflower (Helianthus annuus L.). Taxa lacking comprehensive ex situ conservation were identified. The predicted distributions for 36 Helianthus taxa identified substantial range overlap and asymmetry and niche...

Rice cropping events data for Saldaña (lowland irrigated rice) and Villavicencio (rainfed rice), Colombia

Colombian National Rice Growers Association
These two datasets hold basic information on rice cropping events corresponding to fields of two regions of Colombia: Saldaña (Tolima) and Villavicencio (Meta). This include municipality, variety, cropping system (irrigated/rainfed), sowing and harvesting date, and yield.

Replication data for: Strategic approaches to targeting technology generation: Assessing the coincidence of poverty and drought-prone crop production

Glenn Hyman, Sam Fujisaka, Peter G Jones, Stanley Wood, M. Carmen De Vicente & John Dixon
The world’s poorest and most vulnerable farmers on the whole have not benefited from international agricultural research and development. Past efforts have tried to increase the production of countries in more favourable environments; farmers with relatively higher potential for improvement benefited most from these advances. Current and future crop improvement efforts will focus more on marginal environments, especially those prone to drought. The objective of this research is to guide crop improvement efforts by prioritizing...

RIEPT Trials - Ecosystems M: Poorly drained savannas

International Center For Tropical Agriculture
In 1978, CIAT's Tropical Pastures Program, with the cooperation of national research institutions active in pastures research, took the initiative of forming the RIEPT (Red Internacional de Evaluación de Pastos Tropicales - i.e . lnternational Tropical Pastures Evaluation Network). Its central objectives were defined as, To contribute to the search for new pasture germplasm for the different production ecosystems prevalent in the poor, acid soils of the vast agricultural frontiers of the continent; Developing extrapolations...

RIEPT Trials - Ecosystems L: Tropical rain forests

International Center For Tropical Agriculture
In 1978, CIAT's Tropical Pastures Program, with the cooperation of national research institutions active in pastures research, took the initiative of forming the RIEPT (Red Internacional de Evaluación de Pastos Tropicales - i.e . lnternational Tropical Pastures Evaluation Network). Its central objectives were defined as, To contribute to the search for new pasture germplasm for the different production ecosystems prevalent in the poor, acid soils of the vast agricultural frontiers of the continent; Developing extrapolations...

RIEPT Trials - Ecosystems T: Isothennic savannas

International Center For Tropical Agriculture
In 1978, CIAT's Tropical Pastures Program, with the cooperation of national research institutions active in pastures research, took the initiative of forming the RIEPT (Red Internacional de Evaluación de Pastos Tropicales - i.e . lnternational Tropical Pastures Evaluation Network). Its central objectives were defined as, To contribute to the search for new pasture germplasm for the different production ecosystems prevalent in the poor, acid soils of the vast agricultural frontiers of the continent; Developing extrapolations...

RIEPT Trials - Ecosystems H: Isohyperthennic savannas

International Center For Tropical Agriculture
In 1978, CIAT's Tropical Pastures Program, with the cooperation of national research institutions active in pastures research, took the initiative of forming the RIEPT (Red Internacional de Evaluación de Pastos Tropicales - i.e . lnternational Tropical Pastures Evaluation Network). Its central objectives were defined as, To contribute to the search for new pasture germplasm for the different production ecosystems prevalent in the poor, acid soils of the vast agricultural frontiers of the continent; Developing extrapolations...

Colombian Brachiaria Network

International Center For Tropical Agriculture
The Colombian Brachiaria Network financed until 1999 by a Colombian Cattlemen Association (FEDEGAN-Fondo Nacional del Ganado), and involved as partners forage researchers from CORPOICA (Corporación Colombiana de Investigación Agropecuaria), a Colombian University, SENA and private producers. The objective of this Network was to select accessions and hybrids of Brachiaria with superior agronomic traits relative to commercial cultivars. As a follow-up to the initial agronomic evaluation, seed of selected Brachiaria accessions was multiplied in order to...

RIEPT Trials - Ecosystems E: Semievergreen Seasonal Tropical Forests

International Center For Tropical Agriculture
In 1978, CIAT's Tropical Pastures Program, with the cooperation of national research institutions active in pastures research, took the initiative of forming the RIEPT (Red Internacional de Evaluación de Pastos Tropicales - i.e . lnternational Tropical Pastures Evaluation Network). Its central objectives were defined as, To contribute to the search for new pasture germplasm for the different production ecosystems prevalent in the poor, acid soils of the vast agricultural frontiers of the continent; Developing extrapolations...

RABAOC Trials

International Center For Tropical Agriculture
RABAOC (Reseau de Recherche en Alimentation du Bétail en Afrique Occidentale et Centrale) was established as a collaborative research effort between CIRAD-EMVT, ILCA, CIAT and NARS, to conduct adaptative research on forage species suitable for animal feeding in the humid end sub-humid areas 01 West and Central Africa. Through the RABAOC network, 18 trials have been established with forage germplasm received from CIAT, ILCA and IDESSA, in 9 countries. The objectives of RABAOC were: to...

Centrosema Network

International Center For Tropical Agriculture
Different accessions of Centrosema were tested at 18 locations in tropical America and one location in tropical China. The sites represent three major agro ecosystems: tropical semi-evergreen seasonal forest, tropical rainforest and savanna.

Registration Year

  • 2015
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