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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
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| 0 | PI 665250 | 'Rollag' | Triticum aestivum L. subsp. aestivum | Minnesota, United States | PVPO | | Not Available | 2012 | DEVELOPED | 2011 | | | | | Cultivar | Hard red spring wheat. Contains the Fhb1 QTL for Fusarium head blight resistance and Lr34. Rollag has erect juvenile plant growth, a recurved flag leaf, white glumes with an oblique shoulder and an acuminate beak. The spike Is awned, mkktense, and tapering. The kernel is red and ovate in shape with angular cheeks and a mid-narrow, mid-deep crease. The bNsh on the kernel is not collared and is medium in length. Rollag is a mid-maturity cultlvar, averaging 58.5 d from planting to heading in MN locations. Rollag's height averages n .5 an. Rollag has very good straw strength, with an average score of 1.2 on a G-9 scale. Rollag Is moderately resistant to Fusarium head blight and has been assigned our highest rating to date (3 on our 1-9 scale) for commercially available cultivars. Rollag maintains a low level of visually scabby kemels and has relatively low DON levels under intenae inoculum pressure. Rollag possesses the major FHB resistance QTL Fhb1 . Under field conditions Rollag is moderataly susceptible to leaf NSt and shows susceptible 01 mixed infection type to races MLDS and TDBJ at a seedling plant stage. The results of DNA marker testing indicate that Rollag contains the adult plant resistance gene Lr34. Rollag is highly resistant to the prevalent race QFCSC and other stem NSt races that are important in North America at both the seedling and adult plant stages. Since the beginning of field evaluations of Rollag in 2005, natural infection by stem NSt has not been obsefved. Rollag has shown susceptible reactions to TTKSK (syn. Ug99) when evaluated in seedling screens in the greenhouse and in stem rust field nurseries in Kenya. Rollag is rated as moderately resistant to preharvest sprouting and has acceptable end-use quality, having above average protein content and grain volume weight. Rollag's dough has good water absorption prior to baking at 58.8 g kg-1. Rollag has a short bake mix time, 1.7 min., and relatively low loaf volume of 182.3 mi. Rollag contains the~ and 5+10 subunits of the Glu-A1and Glu-01 loci, respectively. | 1901742 | PI 665250 |