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Seasonal variations of transpiration efficiency coefficient of irrigated wheat.
Tfwala, Cinisani M; Mengistu, Achamyeleh G; Ukoh Haka, Imoh B; van Rensburg, Leon D; Du Preez, Chris C.
Afiliación
  • Tfwala CM; Department of Soil, Crop & Climate Sciences, University of the Free State, P.O. Box 339, 9300 Bloemfontein, South Africa.
  • Mengistu AG; Department of Agricultural Research and Specialists Services, Ministry of Agriculture, P.O. Box 4, M204 Malkerns, Swaziland.
  • Ukoh Haka IB; Department of Soil, Crop & Climate Sciences, University of the Free State, P.O. Box 339, 9300 Bloemfontein, South Africa.
  • van Rensburg LD; Department of Soil, Crop & Climate Sciences, University of the Free State, P.O. Box 339, 9300 Bloemfontein, South Africa.
  • Du Preez CC; Department of Soil, Crop & Climate Sciences, University of the Free State, P.O. Box 339, 9300 Bloemfontein, South Africa.
Heliyon ; 7(2): e06233, 2021 Feb.
Article en En | MEDLINE | ID: mdl-33659750
Global diminishing water resources, especially due to climate change have serious impacts on evaporation (E) from the soil surface, transpiration (T) from plants (crops) and grain yield, which relates to water use efficiency of different crops. A study was conducted at Kenilworth over two wheat cropping seasons (2007 and 2008) with the objectives of: (i) evaluating the effect of soils and seasons on T, E and yield, and (ii) relating these parameters to transpiration efficiency coefficient. The treatments included two soil types and two soil surface treatments (bare and mulched), which were all replicated four times. Weekly irrigation was done using a surface drip system while maintaining the water table at a constant depth. Soil water content was monitored using a neutron probe. Neither soils nor seasons were found to significantly influence the partitioning of evapotranspiration (ET), and T varied from 74 to 76% of ET while E varied between 24 and 26%. Surface treatments caused significant differences in grain yield in both seasons. Reducing evaporative loss improves the water productivity of wheat, which has an important implication in dryland farming.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2021 Tipo del documento: Article País de afiliación: Sudáfrica Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Heliyon Año: 2021 Tipo del documento: Article País de afiliación: Sudáfrica Pais de publicación: Reino Unido