CHIZU — the atlas of coffee research
Coffee research in Madagascar
Two limits come with this count. Only 100,474 of the 190,643 searchable papers (52.7%) carry an author affiliation country. The other 90,169 (47.3%) carry none. So these 70 papers are 70 out of the 100,474 whose affiliation is known. And a co-authored paper is counted once for every country its authors sit in. Per-country counts therefore do not add up to the whole.
Madagascar is a coffee-producing country.
Check it yourself
This is not our word for it. You can run the same query against the same index.
When they were written
1970–2026
Years before 1600 are treated as unknown. The upstream data (OpenAlex) sometimes writes 1400 when the year is missing, and that is a placeholder, not a measurement.
Where they appeared
Top 8 sources (journals and repositories)
Most cited
10 papers, most cited first
- A survey of mangiferin and hydroxycinnamic acid ester accumulation in coffee (Coffea) leaves: biological implications and uses2012cited 130open access
- Genotyping-by-sequencing provides the first well-resolved phylogeny for coffee (Coffea) and insights into the evolution of caffeine content in its species2017cited 91
- Six new species of coffee (Coffea) from northern Madagascar2021cited 84open access
- Cost Efficiency of Cryopreservation as a Long‐Term Conservation Method for Coffee Genetic Resources2009cited 59open access
- Synergies and tradeoffs in natural regulation of crop pests and diseases under plant species diversification2021cited 53open access
- The absence of the caffeine synthase gene is involved in the naturally decaffeinated status of Coffea humblotiana, a wild species from Comoro archipelago2021cited 47open access
- The amphibians and reptiles of Nosy Be (NW Madagascar) and nearby islands: a case study of diversity and conservation of an insular fauna2003cited 45open access
- Isolation and genetic mapping of a Coffea canephora phenylalanine ammonia-lyase gene (CcPAL1) and its involvement in the accumulation of caffeoyl quinic acids2006cited 44
- Colletotrichum gigasporum sp. nov., a new species of Colletotrichum producing long straight conidia2012cited 39
- A taxonomic revision of the baracoffea alliance: nine remarkableCoffeaspecies from western Madagascar2008cited 37open access
Which stage of coffee
Only 30.2% of the whole index carries a stage label. Of this country's 70 papers, 21 carry one. The breakdown below is about those 21 papers only — the rest were never candidates for it.
One paper can carry several labels, so the breakdown adds up to more than that number.
Which field
Only 75.9% of the whole index carries a field label. Of this country's 70 papers, 66 carry one. The breakdown below is about those 66 papers only — the rest were never candidates for it.
One paper can carry several labels, so the breakdown adds up to more than that number.
What language
"undetermined" means the upstream record carried no language. We did not guess one.
Knowledge is not evenly spread
Counting only papers whose author affiliation is known, the largest is Indonesia with 22,248. Madagascar has 70 — a factor of 318.
That gap does not follow where coffee is grown. Research gathers where the means to do research are, not where the coffee is. Making that visible is why CHIZU exists.
Other countries
Indonesia 22,248United States 17,988Brazil 10,857United Kingdom 5,569China 4,887India 3,542Germany 3,185Italy 3,111France 3,072Japan 2,822Colombia 2,489Spain 2,363