2022
DOI: 10.1038/s41598-022-06265-w
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Diversity, trait preferences, management and utilization of yams landraces (Dioscorea species): an orphan crop in DR Congo

Abstract: Yam (Dioscorea spp.) is cultivated in many villages of DR Congo as a means to sustain food security and alleviate poverty. However, the extent of the existing diversity has not been studied in details thus, considered as an orphan. A survey covering 540 farmers in 54 villages was conducted in six major yam growing territories covering three provinces in DR Congo to investigate the diversity, management and utilization of yam landraces using pre-elaborate questionnaires. Subject to synonymy, a total of 67 landr… Show more

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Cited by 11 publications
(22 citation statements)
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“…In DR Congo, yam is a major staple of the rural community, whose major occupation is farming, and is a scarce food commodity in the major city markets due to insufficient production capacity. Of the economically significant species, seven have been previously reported to play a major role in subsistence livelihoods: white guinea yam (D. rotundata), yellow guinea yam (D. cayenensis), water yam (D. alata), bitter yam (D. dumetorum), bush yam (D. praehensilis), wild yam (D. burkilliana), and aerial yam (D. bulbifera) [10][11][12]. Many of these species are being cultivated under wide agro-ecological zones, though with higher preference for D. rotundata and D. alata [10,13].…”
Section: Introductionmentioning
confidence: 99%
“…In DR Congo, yam is a major staple of the rural community, whose major occupation is farming, and is a scarce food commodity in the major city markets due to insufficient production capacity. Of the economically significant species, seven have been previously reported to play a major role in subsistence livelihoods: white guinea yam (D. rotundata), yellow guinea yam (D. cayenensis), water yam (D. alata), bitter yam (D. dumetorum), bush yam (D. praehensilis), wild yam (D. burkilliana), and aerial yam (D. bulbifera) [10][11][12]. Many of these species are being cultivated under wide agro-ecological zones, though with higher preference for D. rotundata and D. alata [10,13].…”
Section: Introductionmentioning
confidence: 99%
“…Experimental site and planting materials A panel of 182 yam accessions distributed across six species of yam (Sup. Table S1) obtained from previous germplasm collection exercise [4] were used for this study. The yam accessions are cultivated and were collected from farmers with their consent sorted prior to collection.…”
Section: Methodsmentioning
confidence: 99%
“…It is a group of multi-species monocot, cultivated for the starchy underground tubers and aerial bulbils in the yam belts of west and central Africa [2]. In the Democratic Republic of Congo (DRC), yams plays an important role in ensuring the sustenance of food security, primarily for the rural populace [4]. DRC is home to a few species of yam which includes D. alata (water/greater yam), D. cayenensis (yellow guinea yam), D. dumetorum (bitter yam), and D. rotundata (white guinea yam), D. bulbifera (aerial yam), D. burkilliana (wild yam), and D. praehensilis (bush yam) [4]- [6].…”
Section: Introductionmentioning
confidence: 99%
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