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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 692651 | 'MN-Clearwater' | Thinopyrum intermedium (Host) Barkworth & D. R. Dewey | Minnesota, United States | NLGRP | | Not Available | 2020 | DEVELOPED | | | | | | Cultivar | MN-Clearwater is the world’s first commercial food-grade intermediate wheatgrass (IWG, Thinopyrum intermedium) grain variety. It was developed as a synthetic population at the University of Minnesota (St. Paul, MN, USA) and released in August 2019. IWG is a perennial grain crop currently undergoing domestication and is also known for its impressive long root structure that offers substantial ecosystem services such as reduction in soil erosion and nutrient runoff. MN-Clearwater (Experimental designation MN1504) was created by intercrossing seven parents selected for high grain yield, reduced shattering, high free grain threshing, reduced lodging, and uniform maturity. The variety was advanced for two generations before being evaluated in statewide yield trials, after which the fourth seed generation was released as the variety in a limited public release. In variety trials across Minnesota, MN-Clearwater produced 562 kg Ha-1 (502 lb ac-1) of grain with minimal lodging and no disease incidence. The first two years produce the highest grain yields under Minnesota conditions and third year yields are significantly lower than the first two years. As the first Kernza variety to be released, we expect this population to be a cornerstone resource for the IWG research community as well as for interested growers, food processors, and commercial partners. MN-Clearwater grain is sold as Kernza® perennial grain. | 2098748 | PI 692651 |