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Water and Radiation Effect on Sweet Sorghum Productivity

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  • N. Dercas
  • A. Liakatas

Abstract

Suitability of sweet sorghum in Greece, where irrigation supply during crop development is limited as rainfall is scarce and evapotranspiration loss is high, is examined in relation with radiation availability. A two-year field experiment was conducted, in central Greece, imposing four soil water regimes via different irrigation treatments: (1) Highly irrigated, (2) Highly irrigated till anthesis when irrigation stopped, (3) Medium irrigated, and (4) Low irrigated. It was found that above-ground dry biomass production from non-water-stressed sweet sorghum plants suggests a high productivity potential among C 4 crops. Under water shortage, radiation use efficiency may be significantly lower. Radiation use efficiency seems to be linearly related to water consumption. Stressed plants (probably except severely stressed) seem to use available water more efficiently than unstressed plants. The slope of the line relating dry matter produced and water evapotranspired increases the sooner the stress is sensed. Yield reduction resulting from post-anthesis irrigation stopage is very little. High water use efficiency values tend to be related with low radiation use efficiency values. Copyright Springer Science+Business Media, Inc. 2007

Suggested Citation

  • N. Dercas & A. Liakatas, 2007. "Water and Radiation Effect on Sweet Sorghum Productivity," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 21(9), pages 1585-1600, September.
    • Handle: RePEc:spr:waterr:v:21:y:2007:i:9:p:1585-1600
    DOI: 10.1007/s11269-006-9115-2
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    References listed on IDEAS

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    1. Olufayo, A. & Baldy, C. & Ruelle, P., 1996. "Sorghum yield, water use and canopy temperatures under different levels of irrigation," Agricultural Water Management, Elsevier, vol. 30(1), pages 77-90, March.
    2. N. Dercas & A. Liakatas, 1999. "Sorghum Water Loss in Relation to Irrigation Treatment," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 13(1), pages 39-57, February.
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    1. Appiah-Nkansah, Nana Baah & Li, Jun & Rooney, William & Wang, Donghai, 2019. "A review of sweet sorghum as a viable renewable bioenergy crop and its techno-economic analysis," Renewable Energy, Elsevier, vol. 143(C), pages 1121-1132.
    2. Huang, Ze & Dunkerley, David & López‐Vicente, Manuel & Wu, Gao-Lin, 2020. "Trade-offs of dryland forage production and soil water consumption in a semi-arid area," Agricultural Water Management, Elsevier, vol. 241(C).
    3. Lopez, Jose R. & Erickson, John E. & Asseng, Senthold & Bobeda, Edmundo Lopez, 2017. "Modification of the CERES grain sorghum model to simulate optimum sweet sorghum rooting depth for rainfed production on coarse textured soils in a sub-tropical environment," Agricultural Water Management, Elsevier, vol. 181(C), pages 47-55.
    4. Aydinsakir, Koksal & Buyuktas, Dursun & Dinç, Nazmi & Erdurmus, Cengiz & Bayram, Edip & Yegin, Arzu Bayir, 2021. "Yield and bioethanol productivity of sorghum under surface and subsurface drip irrigation," Agricultural Water Management, Elsevier, vol. 243(C).

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