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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 535793N108Sorghum bicolor (L.) Moench subsp. bicolor Nebraska, United StatesS9PANICLE1989DONATED09/15/1989Breeding materialInbred germplasm source of sweet sorghum female parent for use in hybrids and breeding programs. Days to bloom 75. Plant height 162cm. Plants tan. Midribs green. Caryopsis light tan. Brix (sugar) 17%.1430729PI 535793
1Ames 34160Ames 34160Fraxinus americana L. Pennsylvania, United StatesNC7SEED2017COLLECTED11/01/2017Urban loaction near the intersection of Pennsylvania ave. and Fort Washington Ave. Fort Washington, Montgomery County.40.13730600, -75.2111180066Specimens located along a possible eixisting naural hedge row along the rightway of two existing parking lots.Uncertain improvement status1957726Ames 34160
2Ames 33965JDC/PG/2017/013/767Populus grandidentata Michx. Iowa, United StatesNC7Image2017COLLECTED05/07/2017Private property approximately 2.98 miles west of Luther, T83N R26W NE 1/4 SE 1/4 NE 1/4 Sec. 28., Boone County41.97486900, -93.87548500328Woodland. Deciduous forest. Wild materialThe native range of Populus grandidentata is concentrated througout the northeastern United States with disjunct populations in far south as Kentucky and as far west as central Iowa (Little, E. L. Jr. 1971). Bigtooth aspens are known to be fast-growing trees, making for a quick source of shade in the landscape. As a pioneer species in nature, P. grandidentata is adaptable to a wide range of environments but is considered to be slightly less adaptable than quaking aspen. However, bigtooth aspen is more resistant to canker diseases than quaking aspen (Laidly 1990), potentially making it slightly longer-lived. Bark on big-tooth aspens is generally greyish to greyish-yellow or olive-green compared to quaking aspens where bark is typically white to greyish-white. Leaves and leaf serrations are larger, and the degree of suckering is lower in big-tooth aspens. Both species are well known for their leaves to quake or tremble as the lengthy petioles allow leaves to swivel in the slightest amount of wind. Populus use is well-documented throughout the world and encompasses a wide range of products including energy feedstock, wood chips for pulping fibers, veneer logs, agro-forestry, and phyto-remediation as well as several other environmental applications. Interspecific hybrids of P. grandidentata and P. canescens have superior performance in yield; Hypoxylon canker resistance; and rooting ability compared to pure, N. American aspen genetics. This accession represents genetics acquired from the Des Moines River Valley of central Iowa and considered a disjunct population. P. grandidentata is infrequent to somewhat common throughout parts of the Des Moines River Valley, but very localized. The next closest, native population would be found in Hardin County (Iowa) approximately 50 miles to the northeast near Eldora. In central Iowa, this accession has been noted to have excellent, yellow fall color that typically peaks in mid-October (e.g. 21 October 2015). Fruits usually mature in early May (e.g. 3 May 2017) coinciding with flower initiation on local genotypes of Prunus virginiana. Specimens sampled in nature measuring approximately 60' in height and 16-22" dbh. Due to this accession originating from the western and southern edge of the species native range, it is suspected that this accession would have excellent heat and drought tolerance compared to genetics from areas in the northeastern U.S. 1949856Ames 33965