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    Mulch and irrigation effects on plant-water relations and performance of cassava and sweet potato

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    S83ArtGhumanMulchInthomNodev.PDF (4.812Mb)
    Date
    1983
    Author
    Ghuman, B.S.
    Lal, R.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Mulch and irrigation effects on plant-water relations and performance of cassava cv. TMS 3001 and sweet potato cvs. TIS 2148 and TIS 2295 were investigated at Ibadan, Nigeria. Straw mulch @ 6 t/ha was spread immediately after planting of crops in September 1980. Irrigation equal to pan evaporation was applied during the dry season of 1980/81. Unmulched and/or nonirrigated plants of both crops had lower leaf water potential than mulched and/or irrigated. Averaged over all the treatments and cultivars, cassava had 15.00 h leaf water potential of −3.6 bars as compared to −9.6 bars of sweet potato. The daytime leaf diffusion resistance of cassava was similar (2–5 s cm−1) in unirrigated mulched and irrigated mulched and unmulched plots. But in unirrigated unmulched plots, the resistance increased to 19 s cm−1 at 15.00 h. Mulching did not affect leaf diffusion resistance (2–8 s cm−1) of both cultivars of sweet potato in irrigated plots. But in nonirrigated plots, leaf resistance increased with time during the day; the increase was less in mulched (from 2 to 40 s cm−1 in TIS 2148 and 3 to 13 s cm−1 in TIS 2295) than in unmulched (from 3 to 54 s cm−1 in TIS 2148 and 2 to 20 s cm−1 in TIS 2295) treatments. At harvest, the yields of cassava and sweet potato were not significantly affected by mulching. However, cassava yield was significantly greater in irrigated (24.7 t/ha) than in nonirrigated plots (18.2 t/ha). Similarly, irrigated sweet potato (at 8.5 t/ha of TIS 2148 and 8.7 t/ha of TIS 2295) outyielded the nonirrigated (at 5 t/ha of TIS 2148 and 2.8 t/ha of TIS 2295) one.
    https://doi.org/10.1016/0378-4290(83)90003-5
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1877
    Non-IITA Authors ORCID
    B.S. Ghumanhttps://orcid.org/0000-0002-7792-9147
    Digital Object Identifier (DOI)
    https://doi.org/10.1016/0378-4290(83)90003-5
    IITA Subjects
    Cassava; Soil Information; Soil Surveys And Mapping
    Agrovoc Terms
    Plant Water Relations; Cassava; Sweet Potato; Mulch; Irrigation
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Field Crops Research
    Collections
    • Journal and Journal Articles5283
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