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dc.creatorKarrou, Mohammeden_US
dc.identifier.citationMohammed Karrou. (22/10/2013). Tillage system and genotype effects on early vigor and water use in bread wheat in the Mediterranean region. African Journal of Agricultural Research, 8 (41), pp. 5069-5075.en_US
dc.description.abstractThe southern part of the Mediterranean basin is among the regions that are characterized by recurrent droughts and it is threatened by the effects of climate change. To deal with these problems in wheat, improved techniques of rain water conservation and adapted varieties need to be developed. Combining zero tillage and varieties with early vigor can reduce evaporation and improve transpiration and water productivity and hence increase yields. To test this hypothesis, a field trial was conducted at ICARDA’s research station at Tel Hadya, Aleppo, Syria in 2008/2009 and 2011/2012. The treatments tested were “zero tillage vs. conventional tillage” and five genotypes of bread wheat. In 2008/2009, results showed that zero tillage improved leaf area index, specific leaf area, above ground biomass production and actual evapotranspiration at the beginning of stem elongation. The values increased, respectively for these parameters, from 2.34 to 3.25, 202.9 to 226.5 cm2 g-1, 1799 to 2333 kg ha-1 and from 91 to 101 mm. Water productivity was improved by 15%, on average. In year 2011/2012, the effect of tillage system on all the parameters was not statistically significant. In general, all genotypes responded positively to zero tillage for these measured variables. From this study, we can conclude that zero tillage under dry conditions is a technique that can improve the early vigor of the seedlings. This enhanced early growth can ensure a good canopy cover that reduces the loss of rainwater by evaporation and increases transpiration in relatively early dry years. The non disturbance of soil by tillage reduces water loss by evaporation. However, under wet conditions due to high rainfall, the positive effect of zero tillage on soil moisture and plant growth disappears.en_US
dc.publisherAcademic Journalsen_US
dc.sourceAfrican Journal of Agricultural Research;8,(2013) Pagination 5069-5075en_US
dc.titleTillage system and genotype effects on early vigor and water use in bread wheat in the Mediterranean regionen_US
dc.typeJournal Articleen_US
cg.subject.agrovoczero tillageen_US
cg.subject.agrovocleaf areaen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.crpCGIAR Research Program on Dryland Systems - DSen_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.coverage.regionWestern Asiaen_US
dc.identifier.statusOpen accessen_US
cg.journalAfrican Journal of Agricultural Researchen_US

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