Catimor Coffee Variety: Profile, Origin and the Quality Debate
Catimor, quick answer
Catimor is not a cultivar but a family of arabica lines bred from crossing Caturra with Hibrido de Timor, a spontaneous hybrid between Coffea arabica and Coffea canephora that appeared on the island of Timor in the 1920s. That introgression of canephora genes is what gives Catimor its rust resistance and its high yield potential. It comes at a price: heavy fertiliser demand, a low cherry to green bean outturn on several lines, cup quality potential rated anywhere from very low to good depending on the line in the World Coffee Research catalog, and resistance that can give way as rust races evolve.
The essentials
- The CIFC in Oeiras received Timor Hybrid seed in 1958 or 1959; crossing work with Caturra began in 1967 and produced the HW26 and H46 lines.
- Dwarf stature, yield potential rated high, first production in year 2 or year 3 depending on the line, nutrition requirement rated high to very high.
- Quality potential at altitude shifts line by line: very low for T5175, low for T8667 and Lempira, good for Catimor 129.
- Resistance is never permanent: in May 2017, World Coffee Research confirmed through DNA fingerprinting that Lempira was no longer resistant to rust in Honduras.
How did a chance hybrid from Timor end up in coffee fields worldwide?
It starts with a botanical accident. In the 1920s a coffee tree appeared spontaneously on the island of Timor: a natural cross between Coffea arabica and Coffea canephora, the robusta species. What has been known ever since as Hibrido de Timor therefore carries a fragment of canephora genome inside an arabica background. That fragment holds leaf rust resistance genes that cultivated arabica simply does not have.
The Centro de Investigação das Ferrugens do Cafeeiro (CIFC) in Oeiras, Portugal, received Timor Hybrid seed in 1958 or 1959. Out of the two shipments, breeders kept two plants for their very high rust resistance, CIFC 832/1 and 832/2. In 1967 they began crossing them with Red Caturra CIFC 19/1, a dwarf and productive mutation of Bourbon: the first cross produced the HW26 line, the second the H46 line. After initial testing at the Instituto Agronômico de Campinas in Brazil, the progeny were given the name that blends the two parents, Caturra and Catimor.
The technical word for that transfer is introgression: a piece of canephora genome settles permanently inside an arabica. Everything else follows from it. The yield, the resistance and the suspicion hanging over the cup all trace back to the same stretch of chromosome.
Is the yield gain from Catimor worth the extra fertiliser?
The trade-off can be read line by line in the World Coffee Research variety catalog. Where Caturra, Bourbon and K7 serve as the benchmark for medium yield potential, the Catimors T5175, T8667, Lempira and Catimor 129 are all rated high. Precocity follows: first production in year 2 for T5175 and Catimor 129, in year 3 for T8667 and Lempira.
Dwarf stature then allows planting densities a tall tree could not sustain. The catalog recommends 4,000 to 5,000 plants per hectare for T5175, 5,000 to 6,000 for T8667 and Lempira, 3,000 to 4,000 for Catimor 129, all under single-stem pruning. More trees, sooner, more cherry: on paper the arithmetic looks unbeatable.
The bill arrives elsewhere, and the same catalog spells it out. Nutrition requirement is rated very high for T5175 and high for T8667, Lempira and Catimor 129: without sustained fertilisation the promised yield does not materialise. Cherry to green bean outturn is rated low for T5175, T8667 and Lempira, which means more cherry has to be picked for the same kilo of green coffee. T5175 adds a breeding flaw of its own: the line is not homogeneous and its plants are not stable from one generation to the next. Catimor 129 needs careful management so the tree is not left over-bearing. And the shield is partial: these lines remain susceptible to nematodes, and only Catimor 129 is rated resistant to coffee berry disease.
What does World Coffee Research actually say about Catimor cup quality?
It says the answer depends on the line, not on the name. The catalog rates quality potential at high altitude on a scale running from very low to exceptional. T5175 sits at very low. T8667 and Lempira sit at low. Catimor 129 and Kartika 1, also bred from Timor Hybrid 832/1 crossed with Caturra, sit at good. One commercial label, four different agronomic verdicts.
The explanation lies in how introgression travels. The canephora fragment does not bring only the resistance genes breeders were after: it drags along whatever traits sit next to them on the same chromosome segment, and that load is what successive backcrosses toward arabica are meant to shrink. Cenicafé followed exactly that route with the Castillo varieties, released in 2005 from Caturra crossed with Hibrido de Timor 1343, backcrossing toward Caturra to win the cup back without losing the resistance.
In practice, a bag marked Catimor tells you almost nothing. It signals introgression somewhere in the family tree. It does not tell you which line, at what altitude it grew, or how the lot was processed. Those three facts, never the name on its own, decide what ends up in the cup.
How many varieties hide behind the single name Catimor?
World Coffee Research puts it bluntly: contrary to common belief, Catimor is not a distinct variety but a group of many distinct varieties sharing similar parentage. No exact count exists, because every country carried on its own selection from the progeny the CIFC shipped out.
- T5175, T8667: two progenies of Timor Hybrid 832/1 crossed with Caturra, first selected at the Universidade Federal de Viçosa in Brazil, then received by the CATIE station in Turrialba, Costa Rica, during the 1970s for the first and in 1978 for the second. The T in their code stands for Turrialba.
- Costa Rica 95, Lempira, IHCAFE 90, Catisic: national selections drawn from those two lines in Costa Rica, Honduras and El Salvador. T8667 sits at the heart of the work of PROMECAFE, the regional consortium founded in 1978 to answer the arrival of leaf rust in Central America.
- Catimor 129 (Cat129, Nyika): a selection of a Colombian Cenicafé breeding line (Caturra with Timor Hybrid 1343), taken to Africa in the 1970s through Kenya, introduced in Malawi in the 1990s and released as a variety in 2006 for its yield and its double resistance to leaf rust and coffee berry disease.
- Kartika 1: a line sent from the CIFC to Indonesia in 1985, selected by the Indonesian Coffee and Cocoa Research Institute and released in 1993. Other local types circulate in Indonesia under the Catimor label, notably Ateng and Sigarar Utang.
The Sarchimor group should not be confused with Catimor: it comes from the same hardy parent, Hibrido de Timor, but crossed with Villa Sarchi. Two parallel families, one shared genetic debt to Timor. The lineage of heritage varieties such as Bourbon belongs to an entirely different story.
When does a rust-resistant variety stop being resistant?
Every entry in the World Coffee Research catalog carries the same warning: a variety that is resistant to a disease today may not be resistant tomorrow. Rust resistance is not a fixed property of the plant, it is a balance of power between its genes and the races of the fungus, and that balance shifts.
The reference episode is documented. In a study published in Food Security in 2015, Avelino and co-authors analysed the rust crises that hit Colombia from 2008 to 2011, then Central America and Mexico in 2012 and 2013: Colombian production fell by 31% on average across the epidemic years compared with 2007, and Central American production by 16% in 2013 compared with 2011-12, then by a further 10% in 2013-14 compared with 2012-13.
What came next hit Catimor head on. In January 2017 the Instituto Hondureño del Café received reports of rust on plots of Lempira, a selection planted at scale across Honduras precisely because of its resistance. World Coffee Research ran DNA fingerprinting on leaves collected from a heavily infected farm and from the mother plants kept by IHCAFE: the trees really were Lempira, and they really were susceptible. The announcement was made in Guatemala City on 12 May 2017. National rust incidence recorded by IHCAFE stood at 6% at the time, below the level of economic damage, but 18% of the Lempira farms surveyed in March were above 10% incidence. Two hypotheses remain open: a race already present in Honduras mutated, or a race new to the country moved in. World Coffee Research sums it up plainly: there is no rust-resistant variety that is resistant to all races of rust.
Indonesia went through a comparable scenario with Kartika 1, whose local resistance declined while international trials kept rating it high, to the point that the variety is no longer recommended there for smallholders. That is the lesson Catimor teaches, and it applies to every introgressed line: resistance genetics buys time, not immunity. The calculation between what it earns in the field and what it costs in the cup has to be redone with each breeding generation.
What are Catimor's key agronomic and cup characteristics at a glance?
| Criterion | Catimor |
|---|---|
| Parentage | Caturra x Hibrido de Timor: arabica carrying a fragment of Coffea canephora genome |
| Origin | CIFC, Oeiras (Portugal): Timor Hybrid seed received in 1958 or 1959, crossing work started in 1967 |
| Stature and density | Dwarf, compact; 3,000 to 6,000 plants per hectare depending on the line, under single-stem pruning |
| Productivity | Yield potential rated high; first harvest in year 2 (T5175, Catimor 129) or year 3 (T8667, Lempira) |
| Rust resistance | Intermediate resistance in the catalog; Lempira confirmed susceptible in Honduras in May 2017 |
| Optimal altitude | T5175 and T8667: low to medium optimum, 700m to 1,300m between 5° and 15° latitude; Catimor 129: high optimum |
| Quality potential at altitude | Very low for T5175, low for T8667 and Lempira, good for Catimor 129 and Kartika 1 |
| Lines and selections | T5175, T8667, Catimor 129 (Nyika), Costa Rica 95, Lempira, IHCAFE 90, Catisic, Kartika 1 |
Frequently asked questions
Is Catimor arabica or robusta?
It is classified as Coffea arabica. It carries a fragment of Coffea canephora genome introduced by Hibrido de Timor, what geneticists call an introgression. That fragment explains both its disease resistance and the caution tasters apply to its profile.
Can a Catimor reach specialty quality?
Some lines can. The World Coffee Research catalog rates quality potential at altitude as good for Catimor 129 and Kartika 1, low for T8667 and Lempira, and very low for T5175. The line matters far more than the generic name.
What is the difference between Catimor and Sarchimor?
Both descend from Hibrido de Timor. Catimor is crossed with Caturra, Sarchimor with Villa Sarchi. They are two parallel families of rust-resistant varieties.
How do you read a label that says Catimor?
Look for the three facts the word withholds: the specific line, the altitude of the plot and the processing method. A well-processed high-altitude Catimor can be excellent, and another lot under the same name can be flat.
Sources
- World Coffee Research, Arabica Varieties Catalog: entries for T5175, T8667, Lempira, Catimor 129 and Kartika 1. varieties.worldcoffeeresearch.org
- World Coffee Research, "Coffee leaf rust resistant coffee variety overcome in Honduras", 12 May 2017. worldcoffeeresearch.org
- Avelino J. et al., "The coffee rust crises in Colombia and Central America (2008-2013): impacts, plausible causes and proposed solutions", Food Security, vol. 7, 2015.
- Centro de Investigação das Ferrugens do Cafeeiro (CIFC), Oeiras: origin of Hibrido de Timor and the HW26 and H46 crosses.