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dc.contributor.authorTorrion, Jessica A.
dc.contributor.authorStougaard, Robert N.
dc.date.accessioned2018-04-27T13:12:38Z
dc.date.available2018-04-27T13:12:38Z
dc.date.issued2017-09
dc.identifier.citationTorrion, Jessica A., and Robert N. Stougaard. "Impacts and Limits of Irrigation Water Management on Wheat Yield and Quality." Crop Science 57, no. 6 (November 2017): 3239-3251. DOI: 10.2135/cropsci2016.12.1032.en_US
dc.identifier.issn0011-183X
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14526
dc.description.abstractGreater understanding of the impacts of irrigation timing in hard red spring wheat (Triticum aestivum L.) promotes better irrigation management, which optimizes the positive and minimizes the negative impacts on yield and quality. An experiment was conducted in 2014 to 2015 at Creston, MT. Eight cultivars (subplots) were randomly assigned to six water regimes (main plots). Aside from a rainfed check, irrigation treatments were: (i) replenishment of seasonal crop evapotranspiratory water loss via 32 mm per irrigation event (100ET); (ii) only 21 mm replenishment (66ET) per event to simulate season-long deficit; and three treatments in which 100ET replacement was terminated prior to grain fill completion by scheduling final irrigation at respective stages of: (iii) med-milk (100ET. MM), (iv) early milk (100ET. EM), (v) and anthesis (100ET. FL). The latter three treatments simulated end-of-season deficit irrigation. Irrigation treatment yields were similar, except for the lower 100ET. FL yield, indicating that wheat yield response to irrigation will be optimal in this environment as long as at least one irrigation event is supplied during grain fill. The cultivar yield responses to irrigation were similar. Irrigation increased biomass but had no impact on harvest index. Grain test weight (TWT) improved with irrigation. Falling number varied by cultivar and generally decreased with irrigation, but only significantly in 100ET, 66ET, and 100ET. MM. Irrigation improved yield and TWT, particularly during the hot and dry year. Irrigation can be terminated before completion of grain fill with no impact on yield and quality. Identification of adaptive cultivars with reduced irrigation or changing weather is necessary for improved productivity and grain quality.en_US
dc.description.sponsorshipMontana Wheat and Barley Committeeen_US
dc.titleImpacts and Limits of Irrigation Water Management on Wheat Yield and Qualityen_US
dc.typeArticleen_US
mus.citation.extentfirstpage3239en_US
mus.citation.extentlastpage3251en_US
mus.citation.issue6en_US
mus.citation.journaltitleCrop Scienceen_US
mus.citation.volume57en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.2135/cropsci2016.12.1032en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentResearch Centers.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupNorthwestern Ag Research Center.en_US
mus.data.thumbpage3en_US


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