The East African highland cooking bananas ‘Matooke’ preferences of farmers and traders: Implications for variety development

Akankwasa, Kenneth; Marimo, Pricilla; Tumuhimbise, Robooni; Asasira, Moreen; Khakasa, Elizabeth; Mpirirwe, Innocent; Kleih, U.; Forsythe, Lora; Fliedel, Géneviève; Dufour, Dominique; Nowakunda, K.

doi:10.1111/ijfs.14813

Cited by 32 publications

(51 citation statements)

References 21 publications

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“…For example, 'Nakitembe' and 'Mbwazirume' are among the most preferred Matooke landrace cultivars by end-users, but they do not set seed [9,10]. Hence, the use of seed fertile but less preferred Matooke landraces reduces the chance for acceptance of new hybrids by end-users [17]. There is the need to overcome sterility in the most preferred landraces, one approach being the use of new pollination techniques.…”

Section: Introductionmentioning

confidence: 99%

Application of Pollen Germination Media on Stigmas during Pollination Increases Seed Set in East African Highland Cooking Bananas (Musa spp.)

et al. 2021

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Seed set in East African Highland Cooking bananas (EAHBs) is extremely low and therefore hampers breeding. Pollen–pistil interaction is a key contributing factor. We assessed the effect of pollen germination media (PGM) on seed set in EAHBs. Five EAHB cultivars were pollinated with pollen from the wild banana ‘Calcutta 4’. Glucose-based PGM sprayed on freshly emerged stigmas significantly increased seed set per 100 fruits per bunch. Increases were 73.5% in ‘Enzirabahima’, 39.9% in ‘Mshale’, and 302.4% in ‘Nshonowa’. However, PGM did not increase seed set in the female sterile ‘Mlelembo’ and ‘Nakitembe’. As larger bunches were more fertile, good field management practices are also recommended to get more seed to improve breeding efficiency.

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Section: Introductionmentioning

confidence: 99%

Application of Pollen Germination Media on Stigmas during Pollination Increases Seed Set in East African Highland Cooking Bananas (Musa spp.)

et al. 2021

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“…These hybrids with a stable response across environments, including NARITA 4, 11, 14 and 22, were less susceptible than Mbwazirume, the susceptibility check, and can be made available to smallholder banana farmers in the region as alternatives to black Sigatoka-susceptible Matooke cultivars if their agronomic traits and taste are acceptable to end users [44]. Following a preliminary evaluation in Uganda [30], NARITA 7 was selected and released to farmers in Uganda under the name KABANA 6H, code M9, locally nicknamed 'Kiwangaazi', meaning long-lasting [45]. In Tanzania, NARITA 4, 7 and 23 are recommended for release as alternatives to the highly susceptible local varieties.…”

Section: Discussionmentioning

confidence: 99%

Genotype X Environment Response of ‘Matooke’ Hybrids (Naritas) to Pseudocercospora fijiensis, the Cause of Black Sigatoka in Banana

Kimunye

Jomanga

Tazuba³

et al. 2021

Agronomy

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Growing bananas resistant to Pseudocercospora fijiensis, the cause of black Sigatoka, is the preferred disease control strategy for resource-poor farmers. Banana breeding programs in east Africa have developed 27 Matooke hybrids (commonly known as NARITAs) with higher yields than local landraces. To assess the response of NARITA hybrids to P. fijiensis, 22 hybrids were evaluated under natural field conditions in four locations—Kawanda and Mbarara in Uganda, and Maruku, and Mitarula in Tanzania—between 2016 and 2018 for three crop cycles. Black Sigatoka was visually assessed and the area under the disease progress curve calculated for each plant over time. Significant differences (p < 0.001) were observed between genotypes, environments, and their interaction. The highest contributor to black Sigatoka severity (39.1%) was the environment, followed by the genotype (37.5%) and the genotype Χ environment interaction (GEI) (23.4%). NARITA 2, 7, 14, 21 and 23 were resistant and the most stable hybrids across locations. If other attributes such as the yield and taste are acceptable to end-users, these hybrids can be released to farmers in the region to replace highly susceptible landraces. Mitarula was identified as an ideal site for evaluating banana against black Sigatoka and should be used as a representative location to minimize costs of disease evaluations.

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“…Tissue culture banana plants (genomic group AAA-EA, cv. Kibuzi; Onguso et al, 2004;Akankwasa et al, 2021), were obtained from the Tissue Culture Laboratory at the Sendusu Field Station of the International Institute of Tropical Agriculture in Uganda (IITA-Uganda). The plants had been micro-propagated by the shoot-tip culture technique in which plants are produced by multiplication of the meristematic tissue of banana corms (Vuylsteke, 1998).…”

Section: Banana Plantsmentioning

confidence: 99%

Soil Microbes Determine Outcomes of Pathogenic Interactions Between Radopholus similis and Fusarium oxysporum V5w2 in Tissue Culture Banana Rhizospheres Starved of Nitrogen, Phosphorus, and Potassium

Ochieno

2022

Front. Sustain. Food Syst.

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The contributions of soil biota toward outcomes of pathogenic interactions between Radopholus similis and Fusarium oxysporum V5w2 in tissue culture banana plants starved of nitrogen (N), phosphorus (P), and potassium (K) were investigated. The study was based on three screenhouse factorial experiments (2 × 2 × 2) comprising of potted banana plants with or without R. similis, with or without F. oxysporum V5w2, and either grown in sterile or non-sterile soil. All plants in each of the three experiments received nutrient solutions that were deficient in N, P, or K, respectively. In all the three nutritional regimes, plants inoculated with R. similis were heavily colonized by the nematode with high percentage dead roots and necrosis, while their root biomasses were low. N-starved plants co-inoculated with R. similis and F. oxysporum V5w2 had lower percentage dead roots and tended to have numerically lower nematode density compared to those treated with R. similis only, especially in non-sterile soil. N-starved plants inoculated with R. similis had higher shoot dry weight, were taller with more leaves that were larger, compared to those not inoculated with the nematode. Plants grown in non-sterile soil had lower percentage dead roots, necrosis and R. similis density than those from sterile soil, regardless of the nutrient regime. N-starved plants from non-sterile soil were shorter with smaller leaves having decreased chlorophyll content and lower biomass, compared to those from sterile soil. By contrast, P and K starved plants from non-sterile soil were taller with larger leaves and more biomass, compared to those from sterile soil. Roots inoculated with R. similis had higher endophytic colonization by Fusarium spp., especially when co-inoculated with F. oxysporum V5w2 and grown in sterile soil among the N and K-starved plants. In conclusion, pathogenic interactions between R. similis and F. oxysporum V5w2 are predominantly suppressed by a complex of soil microbes that exert plant growth promoting effects in tissue culture banana plants through N, P, and K dependent processes. Nitrogen is the most important limiting factor in rhizosphere interactions between banana roots, beneficial microbes and the pathogens. Soil sterilization and the stringent aseptic tissue culture techniques still require the development of alternative innovative ways of conserving microbial services for sustainable agriculture.

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The East African highland cooking bananas ‘Matooke’ preferences of farmers and traders: Implications for variety development

Cited by 32 publications

References 21 publications

Application of Pollen Germination Media on Stigmas during Pollination Increases Seed Set in East African Highland Cooking Bananas (Musa spp.)

Application of Pollen Germination Media on Stigmas during Pollination Increases Seed Set in East African Highland Cooking Bananas (Musa spp.)

Genotype X Environment Response of ‘Matooke’ Hybrids (Naritas) to Pseudocercospora fijiensis, the Cause of Black Sigatoka in Banana

Soil Microbes Determine Outcomes of Pathogenic Interactions Between Radopholus similis and Fusarium oxysporum V5w2 in Tissue Culture Banana Rhizospheres Starved of Nitrogen, Phosphorus, and Potassium

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