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    Soybean maturity and environmental effects in savanna systems; I: dry matter accumulation

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    S02ArtSinghSoybeanInthomDev.pdf (135.1Kb)
    Date
    2002
    Author
    Singh, A.
    Carsky, R.
    Lucas, E.
    Dashiell, Kenton E.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Growing soybean varieties with high residue yield may help to sustain the soil organic matter (SOM) content when recycled. Replicated field trials were conducted in four Guinea savanna sites in Nigeria to study the dry matter partitioning in six soybean genotypes and evaluate them for biomass production. The varieties were early TGx1485-1D and late TGx1670-1F in Trial 1 and early TGx1485-1D, TGx1805-2E and TGx1681-3F, medium TGx1809-12E and late TGx923-2E and TGx1670-1F in Trial 2. On average, the proportion of total dry matter accumulated in soybean plant parts was 42% in grain, 36% in stover, 12% in leaf litter and 11% in roots and nodules. While maturity class had no significant effect on the grain yield of soybean, significantly higher dry matter accumulation of roots and nodules, leaf litter, and stover was observed in medium and late varieties compared with early varieties (P < 0.05). Thus, medium and late varieties would be better able to sustain the SOM content than early varieties when the residues are recycled. Strongly acid soils in a high rainfall environment limited soybean biomass production and potential to maintain SOM.
    https://doi.org/10.1300/J064v20n01_08
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3803
    Digital Object Identifier (DOI)
    https://doi.org/10.1300/J064v20n01_08
    IITA Subjects
    Soybean; Plant Breeding; Soil Information; Handling, Transport, Storage And Protection Of Agricultural Products
    Agrovoc Terms
    Soybean (Glycine Max (L.) Merrill); Maturity Groups; Dry Matter Accumulation; Soil Organic Matter; Acid Soils; Guinea Savanna
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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