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    Variation in tuber dry matter content and starch pasting properties of white Guinea yam (Dioscorea rotundata) genotypes grown in three groecologies of Nigeria

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    Journal Article (1.132Mb)
    Date
    2021
    Author
    Matsumoto, R.
    Asfaw, A.
    De Koeyer, D.
    Muranaka, S.
    Yoshihashi, T.
    Ishikawa, H.
    Adebola, P.O.
    Asiedu, R.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    The primary objective of this study was to assess the effects of genotype (G), location (L), and G × L interaction on tuber quality traits (dry matter content and starch pasting parameters) in white Guinea yam (Dioscorea rotundata Poir.). Variability in tuber dry matter and starch pasting properties was examined using 18 advanced breeding lines and two dominant landrace cultivars of white Guinea yam grown in three different agroecological zones (forest‒savanna transition, southern Guinea savanna, and rainforest) in Nigeria. The starch pasting properties were evaluated using a Rapid Visco Analyser. Our results show that the G × L interaction effect was low compared to the genotype and growing location effects on the variability of key starch properties. In addition, the repeatability of trait performance across locations was high and relatively uniform for key traits, suggesting that any of the three locations used in this study can be employed for their evaluation. Furthermore, TDr1100873 had a higher dry matter content than the dominant landrace cultivars (Amula and Meccakusa) but was similar to them in starch pasting properties. Hence, TDr1100873 is considered a suitable variety for future breeding activities.
    https://dx.doi.org/10.3390/agronomy11101944
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7326
    IITA Authors ORCID
    Ryo Matsumotohttps://orcid.org/0000-0002-0106-6728
    Asrat Asfawhttps://orcid.org/0000-0002-4859-0631
    David De Koeyerhttps://orcid.org/0000-0001-8064-6538
    Haruki Ishikawahttps://orcid.org/0000-0001-6215-2622
    Patrick Adebolahttps://orcid.org/0000-0002-5155-6194
    Robert Asieduhttps://orcid.org/0000-0001-8943-2376
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.3390/agronomy11101944
    Research Themes
    Biotech and Plant Breeding; Plant Production and Health
    IITA Subjects
    Agronomy; Food Security; Plant Breeding; Plant Health; Plant Production; Value Chains; Yam
    Agrovoc Terms
    Yams; Starch; Dry Matter Content; Tubers; Genotypes; Stability
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Agronomy
    Collections
    • Journal and Journal Articles4842
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