Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the Congo

Background and aims – Cinchona (Rubiaceae) tree bark is the key source of quinine alkaloids used as malaria treatment. Cinchona trees were introduced to Democratic Republic of the Congo (DRC) in the early 20th century. Currently, the eastern DRC accounts for an estimated 55% of the global supply of...

Full description

Saved in:
Bibliographic Details
Main Authors: Bezawit Mekonnen, Landry Cizungu, Julio Alegre, Haben Blondeel, Emiel De Lombaerde, Hans Verbeeck, Luc Duchateau, Eddie Schrevens, Kris Verheyen, Pascal Boeckx, Pieter De Frenne
Format: Article
Language:English
Published: Meise Botanic Garden 2025-01-01
Series:Plant Ecology and Evolution
Online Access:https://plecevo.eu/article/125060/download/pdf/
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1841545192891482112
author Bezawit Mekonnen
Landry Cizungu
Julio Alegre
Haben Blondeel
Emiel De Lombaerde
Hans Verbeeck
Luc Duchateau
Eddie Schrevens
Kris Verheyen
Pascal Boeckx
Pieter De Frenne
author_facet Bezawit Mekonnen
Landry Cizungu
Julio Alegre
Haben Blondeel
Emiel De Lombaerde
Hans Verbeeck
Luc Duchateau
Eddie Schrevens
Kris Verheyen
Pascal Boeckx
Pieter De Frenne
author_sort Bezawit Mekonnen
collection DOAJ
description Background and aims – Cinchona (Rubiaceae) tree bark is the key source of quinine alkaloids used as malaria treatment. Cinchona trees were introduced to Democratic Republic of the Congo (DRC) in the early 20th century. Currently, the eastern DRC accounts for an estimated 55% of the global supply of quinine. The aim of this study is to obtain more insights into what context Cinchona is cultivated, what the scale of the farming and its management is, and how specific risks are being dealt with. Material and methods – Data was collected on Cinchona tree distribution, socio-economic variables, farm characteristics, and cultivation techniques based on interviews with 185 smallholder farmers in five regions (groupements) across the eastern DRC. Key results – Most Cinchona trees are grown at elevations between 1588 and 1627 m a.s.l. and most farmers preferred growing C. calisaya in a monoculture cultivation system, with in vivo propagation, and their own seed sources. Cassava was the dominant crop as previous cultivation and as a crop grown together with Cinchona. Eucalyptus was the dominant tree species grown together with Cinchona. Furthermore, most of the farmers apply a 1 × 1 m spacing and most do not use any additional fertilizer input. The most reported plant disease is linear canker. Conclusion – To sustainably increase the productivity of Cinchona in the DRC, smallholder farmers should be given appropriate training to empower them to carry out their own in vitro propagation and apply integrated soil fertility management and integrated pest management. Our results provide information on current cultivation of Cinchona in the DRC, which may become more important given the rising resistance of the malaria parasite against other medicines.
format Article
id doaj-art-4558d6673d2d4ee1bd2fba25e1739cf6
institution Kabale University
issn 2032-3921
language English
publishDate 2025-01-01
publisher Meise Botanic Garden
record_format Article
series Plant Ecology and Evolution
spelling doaj-art-4558d6673d2d4ee1bd2fba25e1739cf62025-01-12T08:30:51ZengMeise Botanic GardenPlant Ecology and Evolution2032-39212025-01-01158131310.5091/plecevo.125060125060Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the CongoBezawit Mekonnen0Landry Cizungu1Julio Alegre2Haben Blondeel3Emiel De Lombaerde4Hans Verbeeck5Luc Duchateau6Eddie Schrevens7Kris Verheyen8Pascal Boeckx9Pieter De Frenne10Ghent UniversityCatholic University of BukavuNational Agricultural University La MolinaGhent UniversityGhent UniversityGhent UniversityGhent UniversityKU LeuvenGhent UniversityGhent UniversityGhent UniversityBackground and aims – Cinchona (Rubiaceae) tree bark is the key source of quinine alkaloids used as malaria treatment. Cinchona trees were introduced to Democratic Republic of the Congo (DRC) in the early 20th century. Currently, the eastern DRC accounts for an estimated 55% of the global supply of quinine. The aim of this study is to obtain more insights into what context Cinchona is cultivated, what the scale of the farming and its management is, and how specific risks are being dealt with. Material and methods – Data was collected on Cinchona tree distribution, socio-economic variables, farm characteristics, and cultivation techniques based on interviews with 185 smallholder farmers in five regions (groupements) across the eastern DRC. Key results – Most Cinchona trees are grown at elevations between 1588 and 1627 m a.s.l. and most farmers preferred growing C. calisaya in a monoculture cultivation system, with in vivo propagation, and their own seed sources. Cassava was the dominant crop as previous cultivation and as a crop grown together with Cinchona. Eucalyptus was the dominant tree species grown together with Cinchona. Furthermore, most of the farmers apply a 1 × 1 m spacing and most do not use any additional fertilizer input. The most reported plant disease is linear canker. Conclusion – To sustainably increase the productivity of Cinchona in the DRC, smallholder farmers should be given appropriate training to empower them to carry out their own in vitro propagation and apply integrated soil fertility management and integrated pest management. Our results provide information on current cultivation of Cinchona in the DRC, which may become more important given the rising resistance of the malaria parasite against other medicines.https://plecevo.eu/article/125060/download/pdf/
spellingShingle Bezawit Mekonnen
Landry Cizungu
Julio Alegre
Haben Blondeel
Emiel De Lombaerde
Hans Verbeeck
Luc Duchateau
Eddie Schrevens
Kris Verheyen
Pascal Boeckx
Pieter De Frenne
Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the Congo
Plant Ecology and Evolution
title Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the Congo
title_full Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the Congo
title_fullStr Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the Congo
title_full_unstemmed Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the Congo
title_short Smallholder farmers’ knowledge on management of Cinchona in the Democratic Republic of the Congo
title_sort smallholder farmers knowledge on management of cinchona in the democratic republic of the congo
url https://plecevo.eu/article/125060/download/pdf/
work_keys_str_mv AT bezawitmekonnen smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT landrycizungu smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT julioalegre smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT habenblondeel smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT emieldelombaerde smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT hansverbeeck smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT lucduchateau smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT eddieschrevens smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT krisverheyen smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT pascalboeckx smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo
AT pieterdefrenne smallholderfarmersknowledgeonmanagementofcinchonainthedemocraticrepublicofthecongo