60
Table 1. Genetic background of pawpaw (Asimina triloba) selectionsz included in the Kentucky Pawpaw Regional Variety Trials (PRVT) and tree survival in the Frankfort and Princeton, Kentucky plantings after 9 and 12 years respectively.
| Clonez | Genetic background | Surviving trees in Frankfort KY, (%) | Surviving trees in Princeton KY, (%) |
|---|---|---|---|
| Middletown | Wild seedling from Middletown, Ohio | 100 | 50 |
| Mitchell | Wild seedling from luka, Illinois | 100 | 50 |
| NC-1 | Davis × Overleese | 100 | 75 |
| Overleese | Cultivated (open-pollinated) seedling from Rushville, Ind. | 88 | 63 |
| PA-Golden | Second-generation seedling from G.A. Zimmerman collection | 100 | 50 |
| Potomac (4-2) | Open-pollinated seedling of BEF-53 | 100 | 50 |
| Rappahannock (8-58) | Open-pollinated seedling of BEF-30 | 100 | 75 |
| Shenandoah (1-7-1) | Open-pollinated seedling of Overleese | 100 | 75 |
| Sunflower | Wild seedling from Chanute, Kansas | 100 | 88 |
| Susquehanna (11-5) | Open-pollinated seedling of BEF-53 | 88 | 13 |
| Taylor | Wild seedling from Eaton Rapids, Mich. | 75 | 38 |
| Taytwo | Wild seedling from Eaton Rapids, Mich. | 100 | 50 |
| Wabash (1-7-2) | Open-pollinated seeding from BEF-30y | 100 | 63 |
| Wells | Cultivated (open-pollinated) seedling from Salem, Ind. | 88 | 75 |
| Wilson | Wild seedling from Cumberland, Ky. | 75 | 88 |
| 1-23 | Open-pollinated seedling of Taylor | 100 | 50 |
| 1-68 | Open-pollinated seedling of Overleese | 100 | 63 |
| 2-10 | Open-pollinated seedling of BEF-30 | 75 | 63 |
| 2-54 | Open-pollinated seedling of GAZ-VAx | 100 | 50 |
| 3-11 | Open-pollinated seedling of BEF-33 | 88 | 75 |
| 3-21 | Open-pollinated seedling of BEF-43 | 100 | 50 |
| 5-5 | Open-pollinated seedling of BEF-54 | 88 | 38 |
| 7-90 | Open-pollinated seedling of RS-2w | 100 | 50 |
| 8-20 | Open-pollinated seedling of Sunflower | 100 | 50 |
| 9-47 | Open-pollinated seedling of BEF-49 | 100 | 88 |
| 9-58 | Open-pollinated seedling of BEF-50 | 100 | 38 |
| 10-35 | Open-pollinated seedling of BEF-49 | 100 | 88 |
| 11-13 | Open-pollinated seedling of BEF-53 | 100 | 50 |
| Total (± SE) | 95 ±9 | 59 ±18 |
2 Numbered selections from the PawPaw Foundation orchards; numerous wild selections from the remnant collections of H.A. Allard (Arlington, Va.), Blandy Experimental Farm (Boyce, Va.), B. Buckman (Farmington, Ill.), J. Hershey (Dowington, Pa.), R. Schlaanstine (West Chester, Pa.), and G. Zimmerman (Linglestown, Pa.), plus some from truly wild trees and some from named varieties that were assembled by R. N. Peterson and H. J. Swartz at the Univ. of Maryland Experiment Stations in Keedysville and Queenstown, Md.
BEF = Blandy Experimental Farm collection (Boyce, Va.); numerous wild seedlings plus portions of Zimmerman's collection, donated posthumously; assembled by Orland E. White and staff at Boyce, Va., from 1926 to 1955.
GAZ = George A. Zimmerman collection containing most, if not all of the named varieties of the time plus numerous wild selections and interspecific hybrids; assembled by George A. Zimmerman of Linglestown, Pa., from 1920 to 1940.
w RS = Ray Schlaanstine collection, material descending from Zimmerman's collection via John Hershey; assembled by Ray Schlaanstine of West Chester, Pa., date uncertain, circa 1960.