Single copies of the following publications are provided on request, free of charge. To receive copies, send your request to:

Dr. Kirk Pomper
c/o Pawpaw Research
129 Atwood Research Facility
Kentucky State University
Frankfort, KY 40601-2355

Recent KSU Pawpaw Publications
Available as PDF Files*:

Crabtree, S. B, K. W. Pomper, and J. D. Lowe. 2010. Within-cluster hand-thinning increases fruit weight in North American Pawpaw [Asimina triloba (L.) Dunal]. Journal of the American Pomological Society 64:234-240. [PDF]

Pomper, K.W., J. D. Lowe, L. Lu, S. B. Crabtree, S. Dutta, K. Schneider, and J. Tidwell. 2010. Characterization and Identification of Pawpaw (Asimina triloba) Cultivars and Advanced Selections by Simple Sequence Repeat Markers. J. Amer. Soc. Hort. Sci. 135: 143-149. [PDF]

Pomper, Kirk W., Sheri B. Crabtree, and Jeremiah Lowe. 2009. Enhancing Pawpaw Chip Budding Success and Scion Growth of Two Cultivars on Two Seedling Rootstocks in Greenhouse Container Production. Journal of the American Pomological Society 63(4):145-149. [PDF]

Federica Galli, Douglas D. Archbold, and Kirk W. Pomper. 2009. Pawpaw Fruit Chilling Injury and Antioxidant Protection J. Amer. Soc. Hort. Sci. 2009 134: 466-471.[PDF]

Pomper, Kirk W., Jeremiah D. Lowe, Li Lu, Sheri B. Crabtree, and Lauren A. Collins. 2009. Clonality of Pawpaw (Asimina triloba) Patches in Kentucky. Journal of The Kentucky Academy of Sciences. 70(1):3-11. [PDF]

Pomper, Kirk W., Jeremiah D. Lowe, Sheri B. Crabtree, and William Keller. 2009. Identification of Annonaceous Acetogenins in the Ripe Fruit of the North American Pawpaw (Asimina triloba). J. Agric. Food Chem. 57 (18): 8339–8343.[PDF]

Pomper, K. W., Sheri B. Crabtree, Desmond R. Layne, and R. Neal Peterson. 2008. Flowering and Fruiting Characteristics of Eight Pawpaw (Asimina triloba) Selections in Kentucky. Journal of the American Pomological Society. 62:89-97. [PDF]

Archbold, D., F. Galli, and K. Pomper. 2008. Loss of Ripening Capacity of Pawpaw Fruit with Extended Cold Storage. J. Agric. Food Chem.56:10683-10688.

Pomper, K. W., Sheri B. Crabtree, Desmond R. Layne, and R. Neal Peterson. 2008. Flowering and Fruiting Characteristics of Eight Pawpaw (Asimina triloba) Selections in Kentucky. Journal of the American Pomological Society. 62:89-97. [PDF]

Pomper, K.W., S.B. Crabtree, D.R. Layne, R. Neal Peterson, J. Masabni, and D. Wolfe. 2008. The Kentucky Pawpaw regional variety trial. J. Amer. Pom. Sci. 62:58-69. [PDF]

Kobayashi, Hideka, Changzheng Wang, and  K.W. Pomper. 2008. Phenolic Content and Antioxidant Capacity of Pawpaw Fruit (Asimina triloba L.) at Different Ripening Stages. HortScience 43:268–270. [PDF]

Geneve, R., S. Kester, and K. Pomper. 2007. Autonomous Shoot Production in Pawpaw (Asimina triloba (L.) Dunal). Propagation of Ornamental Plants, 7: 51-56. [PDF]

Galli, F., D.D. Archbold, and K. Pomper. 2007. Pawpaw: An Old Fruit for New Needs. Acta Horticulturae, 744:641-666. [PDF]

Duffrin M.W. and K.W. Pomper. 2006. Development of Flavor Descriptors for Pawpaw Fruit Puree: A Step Toward the Establishment of a Native Tree Fruit Industry. Family & Consumer Sciences Research Journal. 35:118-130. [PDF]

Pomper, K.W. and D.R. Layne. 2005. The North American Pawpaw: Botany and Horticulture. Horticultural Reviews. Vol. 31:351-384.

Koslanund, R., D.D. Archbold, and K.W. Pomper. 2005. Pawpaw [Asimina triloba (L.)] Fruit Ripening. I. Ethylene Biosynthesis and Production. J. Amer. Soc. Hort. Sci. 130:638-642. [PDF]

Koslanund, R., D.D. Archbold, and K.W. Pomper. 2005. Pawpaw [Asimina triloba (L.)] Fruit Ripening. II. Activity of Selected Cell-wall Degrading Enzymes. J. Amer. Soc. Hort. Sci. 130:643-648. [PDF]

Pomper, K.W. and M. A. Grusak. 2004. Calcium uptake and whole-plant water use influence pod calcium concentration in snap bean plants. J. Amer. Soc. Hort. Sci. 129:890-895. [PDF]

Pomper, K.W., S.B. Crabtree, S.P. Brown, S.C. Jones, T.M. Bonney, and D.R. Layne. 2003. Assessment of genetic diversity of Pawpaw varieties with inter-simple sequence repeat markers. J. Amer. Soc. Hort. Sci. 128:521-525. [PDF]

Archbold, D. D. and K. W. Pomper. 2003. Ripening Papaw fruit exhibit respiratory and ethylene climacterics. Postharvest Biology and Technology. 30:99-103. [PDF]

Pomper, K. W. and R.J. Barney. 2003. Introduction to the second international Pawpaw conference. HortTechnology 13: 410-411. [PDF]

Pomper, K. W., D. R. Layne, R. N. Peterson, and D. Wolfe. 2003. The Pawpaw Regional Variety Trial: background and early data. HortTechnology 13: 412-417. [PDF]

Pomper, K. W., D. R. Layne, and S. C. Jones. 2003. Container production of Pawpaw seedlings. HortTechnology 13: 434-438. [PDF]

Geneve, R. L., K. W. Pomper, S. T. Kester, J. N. Egilla, C. L. H. Finneseth, S. B. Crabtree, and D. R. Layne. 2003. Propagation of Pawpaw – a review. HortTechnology 13: 428-433. [PDF]

Postman, J. D., K. E. Hummer, and K. W. Pomper. 2003. Vascular disease in Oregon regional Pawpaw variety trial. HortTechnology 13: 418-420. [PDF]

Merwin, I. A., R. Byard, and K. W. Pomper. 2003. Survival, growth, and establishment of grafted Pawpaws in upstate New York. HortTechnology 13: 421-422. [PDF]

Archbold, D. D., R. Kosnalund, and K. W. Pomper. 2003. Ripening and postharvest storage of Pawpaw. HortTechnology 13:439-441. [PDF]

Templeton, S. B., M. Marlette, K. W. Pomper, and S. C. Jones. 2003. Favorable taste ratings for several Pawpaw products. HortTechnology 13: 445-448. [PDF]

Pomper, K.W., D.R. Layne, and S.C. Jones. 2002. Incident irradiance and cupric hydroxide container treatment effects on early growth and development of container-grown Pawpaw seedlings. J. Amer. Soc. Hort. Sci. 127:13-19. [PDF]

Pomper, K.W., D. R. Layne, S.C. Jones, and M.G. Kwantes. 2002. Growth enhancement of container-grown Pawpaw seedlings as influenced by media type, root-zone temperature, and fertilization regime. HortScience 37:329-333. [PDF]

Pomper, K.W., D.R. Layne, and E.B. Reed. 2002. Determination of the optimal rate of slow-release fertilizer for enhanced growth of Pawpaw seedlings in containers. HortTechnology 13:397-401. [PDF]

• 2nd International Pawpaw Conference Proceedings

Extension Publications and Web Sites

Organic Production of Pawpaw. (K.W. Pomper, S. B. Crabtree, and J. D. Lowe. 2010.Kentucky State University Cooperative Extension Bulletin PBI-004.)

Forest Production of Pawpaw (K.W. Pomper, and S.B. Crabtree). 2009; KSU Pawpaw Ext. Bull; PIB-003
wp-content/uploads/2017/09/OrganicPawpawPBI-004-New-1.pdf

Finneseth, C., S. Kester, R. Geneve, K. Pomper, and D. Layne. 2000. Propagation of Pawpaw (Asimina triloba). Combined Proceedings International Plant Propagator’s Society 50:413-416. [PDF]

Pomper, K.W., D.R. Layne, and R.N. Peterson. 1999. The Pawpaw regional variety trial, p.353-357. In J. Janick (ed). Perspectives on New Crops and New Uses. ASHS Press, Alexandria, VA. [PDF]

Jones, S.C, R.N. Peterson, T. Turner, K.W. Pomper, and D. R. Layne. 1998. Pawpaw planting guide: cultivars and nursery sources. KSU Pawpaw Ext. Bull.PIB-002. [link]

Additional Publications Available Upon Request:

1. Pawpaws. In: Register of Fruit and Nut Varieties, Third Edition, A.S.H.S. Press, Alexandria, VA. Layne, D.R. 1997.
List of Pawpaw varieties, with descriptions. 2 pages.

2. The Pawpaw [Asimina triloba (L.) Dunal]: A new fruit crop for Kentucky and the United States. HortScience 31:15-22. Layne, D.R. 1996.
Propagation and cultivation, commercial potential, regional variety trials, photos of tree, fruit, and flower. 10 pages.

3. The Pawpaw: Promising Future for an American Tree Crop. The Temperate Agroforester 4(3):4-6. Layne, D.R. 1996.
Description of tree and fruit, potential uses as a crop. 3 pages.

4. Development of Pawpaw as a new fruit crop: research update from K.S.U. Pomona 29(4):37-47. Layne, D.R. 1996.
History, commercial potential, research, regional variety trials, cultivation. 7 pages.

5. The All-American pawpaw. Part 1: Revival efforts may bear much ‘fruit’. The Fruit Gardener magazine, May/June Issue, p.12-14. Layne, D.R. 1996.
History, botany, commercial potential, photos. 3 pages.

6. The All-American Pawpaw. Part 2: Research, cultivation, and the future. The Fruit Gardener magazine, July/August Issue p. 6-9, 26. Layne, D.R. 1996.
Research, germplasm, regional variety trials, cultivation, photos of zebra swallowtail butterfly and larva. 4 pages.

7. Composition of Pawpaw (Asimina triloba) fruit. Ann. Rpt. N. Nut Growers Assoc. 77:97-106. Peterson, R.N., J.P. Cherry and J.G. Simmons. 1982.
Analysis of fruit for nutrient content. 6 pages.

8. Pawpaw Planting Guide: Cultivars and Nursery Sources. Kentucky State University extension bulletin. Jones, S.C., R.N. Peterson, T. Turner, K.W. Pomper, and D.R. Layne. 1998.
Advice for growing pawpaws, list of available cultivars, list of nurseries that sell Pawpaw trees or seeds. 8 pages.

9. Pawpaws in the Garden/Pawpaws in the Kitchen. The Pawpaw Foundation. 1990.
Site selection, propagation, pollination, pests/harvesting, storing, and using the fruit. 2 pages.

10. Guide to evaluating Pawpaws. The Pawpaw Foundation. 1990.
How to evaluate yield, fruit size, flavor, etc. 3 pages.

11. Pawpaw Foundation brochure.
Brief history and description of Pawpaws, purpose and activities of the Pawpaw Foundation, mailing address and form for membership.

12. From the Pawpaw Patch.
Pawpaw Foundation newsletter, usually semi-annual. Limited number of back issues available. 4 pages.

13. New Crop Fact Sheet. http://www.hort.purdue.edu/newcrop/cropfactsheets/pawpaw.html. Layne, D.R. 1995.
Origin and botany, crop status, cultivation and propagation, brief list of sources, brief bibliography. 5 pages.

14. Pawpaw Foundation publication list.
This list of publications.

15. Cooking with Pawpaws. Kentucky State University extension bulletin. Jones, S.C., and D.R. Layne. 1997.
Recipes, nutritional content, color photos, list of cultivars. 12 pages.

16. The Pawpaw (Asimina triloba). Kentucky State University. Callaway, M.B. 1990.
Taxonomy, propagation, list of cultivars, maps showing native ranges of Pawpaw and related species. 14 pages.

17. The Pawpaw Patch. Source and date unknown.
Words and music of the pawpaw song. 1 page.

18. Research on the Pawpaw (Asimina triloba) at the University of Maryland. 77^th Ann. Rpt. N. Nut Growers Assoc. Peterson, R.N. 1986.
Germplasm from historic collections. 3 pages.

19. How to Hand-Pollinate Pawpaws. Fruit Gardener, September/October 1997, pp. 10-11. Peterson, N. 1997.
Description of pollination technique with color photo illustrations. 1 page.

20. Development of Pawpaw [Asimina triloba (L.) Dunal] as a New Fruit Crop. 87th Ann. Rpt. N. Nut Growers Assoc. Layne, D.R. 1996.
Revised and updated version of publication #2, HortScience 31:15-22, without photos. 5 pages.

21. Identification of Pawpaw [Asimina triloba (L.) Dunal] Cultivars and Advanced Selections by Isozyme Polymorphisms: Utility and Limitations. 87th Ann. Rpt. N. Nut growers Assoc. Huang, H., D.R. Layne, and R.N. Peterson 1996.
Study of the variability of Isozyme genetic markers in Pawpaw cultivars, and their usefulness for clonal identification. 3 pages.

22. Pawpaw shows promise in fighting drug-resistant tumors. Purdue News.
S. Gaidos 1997.
News article about anti-cancer compounds in pawpaw. 2 pages.

23. Membership Directory. The Pawpaw Foundation. 1997.
List of Pawpaw Foundation members. Available only to members. One free copy per membership, additional copies $5 each.

24. Using Isozyme Polymorphisms for Identifying and Assessing Genetic Variation in Cultivated Pawpaw [Asimina triloba (L.) Dunal]. J. Amer. Hort. Sci. 122(4):504-511. 1997. Huang, H., D.R. Layne, and R.N. Peterson.
Scientific study of genetic variation in pawpaw cultivars. 4 pages.