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    Storage root yield response to leaf harvest of improved and local cassava varieties in DR Congo

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    Journal Article (1.497Mb)
    Date
    2021
    Author
    Hauser, S.
    Bakelana, Z.
    Bungu, D.
    Mwangu, K.
    Ndonda, A.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Although cassava is usually grown for its starchy roots, cassava leaves are an important vegetable and protein source in sub-Saharan countries. Eleven cassava mosaic disease (CMD) tolerant and two susceptible varieties were planted in six trials; leaves were harvested at 4, 8 and 11 months after planting (MAP) and storage roots were harvested at 12 MAP. Edible leaf and storage root dry matter yields were strongly affected by variety and interacted with location. Edible leaf yields ranged from 209 to 435 kg ha−1 DM among varieties. Storage root yields ranged from 2540 to 9250 kg ha−1 DM among locations and from 2470 to 7550 kg ha−1 among varieties. Leaf harvest caused 15.8% storage root yield loss. Susceptible varieties produced lowest edible leaf (209 kg ha−1) and storage root (2530 kg ha−1) yields in all locations. Improved varieties suffered storage root yield reductions of 5–25.8%, equivalent to 400–1550 kg ha−1. Edible leaf yield and storage root yield were not correlated. Variety TME419 produced the highest average storage root yields in 3 of 6 locations. The three best leaf producing varieties were not among the best storage root producers, indicating an incompatibility of the two production objectives.
    https://dx.doi.org/10.1080/03650340.2020.1800647
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7294
    IITA Authors ORCID
    Stefan Hauserhttps://orcid.org/0000-0002-6329-7783
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1080/03650340.2020.1800647
    Research Themes
    Natural Resource Management
    IITA Subjects
    Agronomy; Cassava; Plant Breeding; Plant Production
    Agrovoc Terms
    Cassava; Roots; Yields; Democratic Republic of the Congo; Storage
    Regions
    Africa; Central Africa
    Countries
    Democratic Republic of the Congo
    Hubs
    Central Africa Hub
    Journals
    Archives of Agronomy and Soil Science
    Collections
    • Journal and Journal Articles4835
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