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dc.contributor.authorSubedi, Maya
dc.contributor.authorCárcamo, Héctor A.
dc.contributor.authorKnodel, Janet J.
dc.contributor.authorWeaver, David K.
dc.contributor.authorCuthbert, Richard D.
dc.contributor.authorPozniak, Curtis J.
dc.contributor.authorNilsen, Kirby T.
dc.contributor.authorBeres, Brian L.
dc.identifier.citationSubedi, Maya, Héctor A. Cárcamo, Janet J. Knodel, David K. Weaver, Richard D. Cuthbert, Curtis J. Pozniak, Kirby T. Nilsen, and Brian L. Beres. "Stability analysis of stem solidness, grain yield, and grain protein concentration in spring wheat." Canadian Journal of Plant Science 101, no. 4 (2020): 456-475.en_US
dc.description.abstractThe wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is a major pest of wheat (Triticum aestivum L.) in the northern Great Plains, where it is a constant threat in Montana and is resurging in Alberta, Saskatchewan, and North Dakota. Adoption of solid-stemmed cultivars is an important management tool for wheat growers; however, the inconsistent pith expression first noted with the release of ‘Rescue’ has been repeatedly observed in modern cultivars such as ‘Lillian’ in Canada. Given the extensive hectares planted to solid-stemmed wheat cultivars during an outbreak, the identification of cultivars that display stable stem solidness, grain yield, and grain protein concentration across a wide range of environments where stem sawfly infestations occur is desirable. We assessed spring wheat plant responses in eight solid-stemmed and two hollow-stemmed genotypes grown across diverse environments using multiple statistical models. Study sites included southern Alberta and Saskatchewan, Montana, and North Dakota. Most models agreed that the genotypes ‘Choteau’, ‘BW925’, and ‘Mott’ consistently displayed high and stable stem solidness concomitant with high grain yield. ‘Choteau’ and ‘BW925’ also consistently met or exceeded the desired threshold of a 3.75/5 pith rating (averaged from the lower four stem internodes) for optimum resistance, whereas ‘Mott’ developed optimal pith at a specific (early) phenological stage when resistance to wheat stem sawfly infestation is critical. Exploring the stability of stem solidness identified ideal genotypes that would enhance germplasm development efforts, which exemplifies how this approach can facilitate the selection, production, and adoption of solid-stemmed wheat cultivars in regions prone to wheat stemen_US
dc.publisherCanadian Science Publishingen_US
dc.subjectTriticum aestivum Len_US
dc.subjectwheat stem sawflyen_US
dc.subjecthost planten_US
dc.subjectbread wheaten_US
dc.subjectstability analysisen_US
dc.subjectcephus cinctusen_US
dc.titleStability analysis of stem solidness, grain yield, and grain protein concentration in spring wheaten_US
mus.citation.journaltitleCanadian Journal of Plant Scienceen_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentLand Resources & Environmental Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US

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