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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 643429'Bynum'Triticum aestivum L. subsp. aestivum Montana, United StatesPVPONot Available2006DEVELOPED2005CultivarBynum is an awned, red-chaffed, medium maturity, solid-stem hard red CLEARFIELD winter wheat similar in appearance and performance to the cultivar Rampart. Average heading date of Bynum is 159.7 days from 1 Jan., n=26 and average height of Bynum is 96 cm, n=28). Winter survival of Bynum is relatively low, similar to Rampart. Under natural infection in Montana, Bynum is moderately resistant to stem rust (caused by Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. and E. Henn.), and resistant to stripe rust (caused by Puccinia striiformis Westend. f. sp. tritici Eriks.). Average stripe rust infection at Bozeman and Kalispell, MT in 2005 and 2006 (n=4) of Bynum was 8.8% compared to resistant cultivars (<10%) and susceptible cultivars (35 to 80%). Based on seven Montana crop tolerance trials, tolerance of Bynum to imazamox is equivalent to that of Above and MT1159CL. In 31 trials in Montana in 2004 and 2005, average grain yield of Bynum (4784 kg ha 1) was similar to current Clearfield cultivars. Average grain volume weight for Bynum (790 g m 3, n=32) and average grain protein of Bynum (139 g kg-1, n=32) are relatively high and similar to Rampart. Stem solidness of Bynum (18.7, n=21) is lower than stem solidness of Rampart (20.5) but higher than hollow-stemmed Neeley (5.7). Average stem cutting in Bynum (10.8%) in nine environments with differential cutting by wheat stem sawfly was similar to that of solid-stem check, Rampart (5.2%). Milling and baking characteristics of Bynum are similar to those of parental cultivar, Rampart. 1711403PI 643429