Publications Cirad

Date de mise à jour : 27 septembre 2023

Can tropical legume grass forage reduce enteric methane yield from suckler cows in the Sahel? mardi 23 avril 2024
Assouma M.H., Baro A., Gbenou G.X., Sib O., Sanogo S., Marichal R., Vall E.
2023

Enteric methane emissions (eCH4) from ruminants are the main source of greenhouse gas from the livestock sector in sub-Saharan Africa. In this region, very few references with in vivo measurements are available on local breeds, particularly on suckler cows. With the development of the dairy sector in Africa, it is important to integrate the evaluation of enteric methane emissions into the various ...
Haitian coffee agroforestry systems harbor complex arabica variety mixtures and underrecognized genetic diversity lundi 22 avril 2024
Millet C.P., Allinne C., Vi T., Marraccini P., Verleysen L., Couderc M., Ruttink T., Zhang D., Solano Sânchez W., Tranchant-Dubreuil C., Jeune W., Poncet V.
2024

Though facing significant challenges, coffee (Coffea arabica) grown in Haitian agroforestry systems are important contributors to rural livelihoods and provide several ecosystem services. However, little is known about their genetic diversity and the variety mixtures used. In light of this, there is a need to characterize Haitian coffee diversity to help inform revitalization of this sector. We ...
Influence of avoided biomass decay on a life cycle assessment of oil palm residues-based ethanol vendredi 19 avril 2024
Setiawan A.A.R., Bardant T.B., Muryanto M., Triwahyuni E., Ishizaki R., Dahnum D., Putri A.M.H., Irawan Y., Maryana R., Sudiyani Y., Sulaswatty A., Wiloso E.I., Ahamed T., Chéron-Bessou C., Noguchi R.
2024

Lignocellulosic (bio)ethanol from oil palm agricultural residue was investigated regarding feedstock availability and environmental impacts while accounting for avoided biomass decay. A life cycle assessment (LCA) was carried out at both pilot- and large-scale plants, from oil palm empty fruit bunch (EFB) collection until ethanol production and use. The primary data were gathered from a pilot ...
The dynamics of non-structural carbohydrates and involved enzymes in relation to the latex yield of rubber trees mardi 16 avril 2024
Lerksamran T., Clément-Vidal A., Liengprayoon S., Rattanaporn K., Chantuma P., Thaler P., Lacote R.
2023

Rubber trees (Hevea brasiliensis Muell. Arg.) are a major crop of economic importance in Thailand. The main product harvested from the rubber trees is latex. Latex production depends on a biochemical process for synthesis, degradation, mobilization, and the storage of nonstructural carbohydrates (NSCs), such as starch and sucrose. The rubber trees demand carbohydrates and enzyme activities for ...
Unravelling life cycle impacts of coffee: Why do results differ so much among studies? mardi 16 avril 2024
Chéron-Bessou C., Acosta Alba I., Boissy J., Payen S., Rigal C., Setiawan A.A.R., Sevenster M., Tran T., Azapagic A.
2024

Coffee beans are a major agricultural product and coffee is one of the most widely traded commodities and consumed beverages globally. Supply chains and cropping systems are very diverse, with contrasted potentials and performance, as well as environmental impacts. Life Cycle Assessment (LCA) studies are needed to inform on reduction in impacts, but there is a lack of comprehensive understanding ...
Review on Green Coffee Carbon Footprint mardi 16 avril 2024
Bessou C., Rigal C., Payen S., Avadi A., Demenois J.
2023

Refining the summer school concept for education in sustainable agriculture and the environment mercredi 13 mars 2024
Rival A., Lesueur C., Thammachote P., Saeyang R., Sukkum R., Chalil D., Setyarso A., Dufour M., Pillot D.
2024

Agricultural activities are a major contributor to prosperity and a key player in the maintenance of productive and resilient landscapes. However, ageing farmers, yields gaps and climate change are hampering the development of agriculture, and Southeast Asia is no exception to this trend. In this worrying context, the revitalisation of the sector through agricultural education is a key issue: ...
A novel method for estimating P&Ds related yield loss in cacao pods in the Peruvian Amazonia mercredi 13 mars 2024
Ramos M.J., Allinne C., Alvarado J., Rapidel B., Bagny-Beilhe L.
2022

Cacao pest and diseases (P&Ds) infect and affect their hosts in specific ways, which adds complexity to study their global impact on production. Commonly, incidence is used as an indicator to evaluate P&Ds, however, it does not provide any information on yield loss, whether we look at it as a loss in quantity or quality. Therefore, from an agronomic point of view, incidence is not enough to ...
Characterisation of the digital divide and assessment of the impact of the use and non-use of digital tools in the Ivorian cocoa sector lundi 11 mars 2024
Notaro M., Bamba M., Chiapo A., Koua D.
2022

Digital tools have changed our daily lives, both in our personal and professional environment, over the last few decades. This is also the true for the agricultural sector, especially in the North where these uses and their relevance are documented and studied. On the other hand, in countries where agriculture is not subsidised and where farm incomes are low, few studies have looked into the use ...
Several enemies at the same time: interaction between two cocoa pod diseases and a cocoa pod borer and their impact in Peruvian agroforestry systems mercredi 28 février 2024
Arias M., Alvarado Labajos J., Ramos M.J., Allinne Belloc C., Ten Hoopen G.M., Bagny-Beilhe L.
2022

Farmers frequently need to deal with several pests simultaneously. Despite this co-occurrence, damages produced by pests and diseases (P&D) are often studied and treated separately as they can be caused by distant taxa including fungi, nematodes and insects. P&D can enhance or hamper the incidence of each other, making of these interactions important modulators of the real impact of P&D on the ...
Afforestation of savannah using cocoa agroforestry: impacts on ecosystem services and effects of associated tree species on soil fertility mercredi 28 février 2024
Harmand J.M., Nijmeijer A., Sauvadet M., Enock S., Essobo Nieboukaho J.D., Fonkeng E.E., Jagoret P., Lauri P.E., Saj S.
2022

Past studies showed a gradual expansion of tree cover over savannah in forest-savannah transition zones in Central Africa. While the natural encroachment of savannah by forest is more and more impeded by human activities, farmers in Cameroon have proven that afforestation of savannah is achievable using cocoa and specific technics to build up an associated tree canopy. Furthermore, mature cocoa ...
The " BarCo " project: for the promotion of barrier crops to curb the expansion of the Cocoa swollen shoot virus in Côte d'Ivoire mercredi 28 février 2024
Babin R., Oro Z.F., Tahi G.M., N'Guessan P., Muller E., Wibaux T.
2022

The Cocoa swollen shoot virus disease (CSSVD) is considered as a threat in Côte d'Ivoire since the early 2000s, when serious outbreaks were reported in the Central-West region. Today the disease has reached most of the production areas, becoming a major threat for cocoa industry. Control measures currently implemented by cocoa sector are the destruction of infected cocoa trees and their closest ...
How many years of evaluation are needed to select new productive cocoa clones? mercredi 28 février 2024
Cilas C., Phillips-Mora W., Mata-Quiros A., Bastide P., Johnson V., Castillo-Fernandeza J.
2022

In perennial plants, the selection of new genotypes requires several years of evaluation to get a good estimate of the genetic value of the trees. The cocoa tree, which is cultivated for its seeds, produces continuously throughout the entire duration of exploitation of the plots, which can last up to 30 years. The genetic value of the trees' productivity over the entire harvesting period is ...
Farmer vs. Industrial practices: Impact of variety, cropping system and process on the quality of durum wheat grains and final products mardi 27 février 2024
Samson M.F., Boury-Esnault A., Menguy E., Avit V., Canaguier E., Bernazeau B., Lavene P., Chiffoleau Y., Akermann G., Moinet K., Desclaux D.
2023

The consumption of artisanal and organic pasta made on-farm from ancient varieties is increasing in France. Some people, namely, those suffering from digestive disorders following the consumption of industrial pasta, consider these artisanal pasta to be more digestible. Most of them have linked these digestive disorders to the ingestion of gluten. We analyzed in this study the impact of ...
Farmer's perception of development opportunities of cacao agroforestry in growing cocoa-producing districts of Uganda lundi 26 février 2024
Wibaux T., Saj S., Chemutai Alunga J., Nazziwa Musoke J., Gavard-Lonchey A., Ntale C.
2022

Cacao farming in Uganda has been rapidly expanding over the past 20 years, as shown by exports growing from 2.130 metric tons (MT) of commercial cocoa in 2001, to 35.000 MT in the year 2020. Most of the national production is still dominated by Bundibugyo district, where the majority of the country's estimated 80,000 – 100,000 smallholder farmers are located. The high demand for Uganda's cocoa ...

Date de mise à jour : 27 septembre 2023