Water use efficiency of winter-sown chickpea under supplemental irrigation in a mediterranean environment

cg.contacttheib.y.oweis@gmail.comen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerUniversity of Mosulen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.creator.idOweis, Theib: 0000-0002-2003-4852en_US
cg.date.embargo-end-dateTimelessen_US
cg.identifier.doihttps://dx.doi.org/10.1016/j.agwat.2003.10.006en_US
cg.isijournalISI Journalen_US
cg.issn0378-3774en_US
cg.issue2en_US
cg.journalAgricultural Water Managementen_US
cg.subject.agrovocsupplemental irrigationen_US
cg.subject.agrovocdeficit irrigationen_US
cg.subject.agrovocsowing dateen_US
cg.subject.agrovocwater-use efficiencyen_US
cg.subject.agrovocchickpeasen_US
cg.volume66en_US
dc.contributorHachum, Ahmeden_US
dc.contributorPala, Mustafaen_US
dc.creatorOweis, Theiben_US
dc.date.accessioned2020-12-17T17:49:40Z
dc.date.available2020-12-17T17:49:40Z
dc.description.abstractChickpea is one of the major legume crops grown in the West Asia and North Africa (WANA) region. It has considerable importance as a food, feed and fodder. Traditionally, it is sown in spring as a rainfed crop in the region, which has highly variable and often insufficient rainfall. It is, therefore, largely raised on residual moisture, which results in low and variable yields and discourages farmers from investing inputs in its production. In the early 1990s, a winter-sown chickpea technology was developed that outweighs spring-sown chickpea in terms of productivity, water use efficiency and other traits. Limited supplemental irrigation can, however, play a major role in boosting and stabilizing the productivity of both spring-sown and winter-sown chickpea. Therefore, we investigated the effect of supplemental irrigation and sowing date on yield and water use efficiency in winter-sown chickpea. An experiment was carried out over four cropping seasons (1997–2001) at ICARDA’s main station at Tel Hadya, Aleppo, northern Syria (mean annual rainfall 330 mm). A cold-tolerant chickpea cultivar with improved resistance to ascochyta blight (ILC 3279, released as Ghab 2 in Syria) was grown in rotation with wheat. The experiment included three sowing dates (late November, mid-January, and late February) and four levels of supplemental irrigation (SI): full SI, 2/3 SI, 1/3 SI, and no SI, i.e. rainfed. The plots were replicated three times in a split-plot design, with date of sowing being the main plot treatment. Soil water content was monitored at approximately at 7–14-day intervals using a neutron probe. Crop evapotranspiration was determined for each subplot during each time interval, from sowing to harvest, using the soil-water balance equation. Water use efficiency was determined as the ratio of crop yield per unit area to seasonal evapotranspiration. The results showed that chickpea yield per unit area increases with both earlier sowing and increased SI. However, water use efficiency under supplemental irrigation decreases with earlier sowing, due to the relatively large increase that occurs in the amount of evapotranspiration at early sowing dates. The study’s results indicated that a 2/3 SI level gives the optimum water use efficiency for chickpea under supplemental irrigation. Under rainfed conditions, however, it was found that sowing chickpea around mid-January resulted in the highest WUE. The analysis also proposed a function, based on regression, which relates winter-sown chickpea yield to water use and which is applicable under both supplemental and rainfed conditions.en_US
dc.formatPDFen_US
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_US
dc.identifier.citationTheib Oweis, Ahmed Hachum. (15/4/2004). Water use efficiency of winter-sown chickpea under supplemental irrigation in a mediterranean environment. Agricultural Water Management, 66 (2), pp. 163-179.en_US
dc.identifier.statusTimeless limited accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/12225
dc.languageenen_US
dc.publisherElsevieren_US
dc.sourceAgricultural Water Management;66,(2003) Pagination 163-179en_US
dc.subjectrainfed agricultureen_US
dc.titleWater use efficiency of winter-sown chickpea under supplemental irrigation in a mediterranean environmenten_US
dc.typeJournal Articleen_US
dcterms.available2003-10-30en_US
dcterms.extent163-179en_US
dcterms.issued2004-04-15en_US
mel.impact-factor4.021en_US

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