Jonathan Schultheis

Goforth, M., Obergh, V., Park, R., Porchas, M., Crosby, K. M., Jifon, J. L., … Cooper, K. K. (2024). Bacterial diversity and composition on the rinds of specific melon cultivars and hybrids from across different growing regions in the United States. PLOS ONE, 19(4). https://doi.org/10.1371/journal.pone.0293861

Woodard, A. J., Schultheis, J. R., Jennings, K. M., Woodley, A. L., & Suchoff, D. H. (2024). Horizontal Planting Orientation Can Improve Yield in Organically Grown Sweetpotato. HORTSCIENCE, 59(1), 36–42. https://doi.org/10.21273/HORTSCI17352-23

Fan, X., Johanningsmeier, S. D., Schultheis, J., Starke, K., Osborne, J. A., & Collins, M. (2024). Quantification of cucurbitacin C in bitter cucumber and its reduction by fermentation and acidification. JOURNAL OF FOOD COMPOSITION AND ANALYSIS, 129. https://doi.org/10.1016/j.jfca.2024.106065

Niyakan, S., Nagashima, Y., Singh, J., Metrani, R., Crosby, K. M., Jifon, J. L., … Koiwa, H. (2023). Genetic and geographical inputs that shape Metabolomic and transcriptomic profiles of melon fruits. SCIENTIA HORTICULTURAE, 321. https://doi.org/10.1016/j.scienta.2023.112337

Heagy, K., Schultheis, J. R., Birdsell, T., Knuth, M., & Ward, J. K. (2023). High-density Planting and a Smaller Row Width Increased Yield and Decreased Fruit Size of. HORTSCIENCE, 58(10), 1194–1200. https://doi.org/10.21273/HORTSCI17246-23

Heagy, K., Knuth, M., Schultheis, J. R., Birdsell, T., & Ward, J. (2023). Using Partial Budgeting Analyses to Analyze Profitability of Commercial Pumpkin Production, Standardize Bin Size Categories, and Understand Bin Sorting Accuracy. HortScience, 58(12), 1587–1594. https://doi.org/10.21273/HORTSCI17499-23

Singh, J., Metrani, R., Jayaprakasha, G. K., Crosby, K. M., Jifon, J. L., Ravishankar, S., … Patil, B. S. (2022). Profiling carotenoid and sugar contents in unique Cucumis melo L. cultigens harvested from different climatic regions of the United States. JOURNAL OF FOOD COMPOSITION AND ANALYSIS, 106. https://doi.org/10.1016/j.jfca.2021.104306

Trandel, M. A., Johanningsmeier, S., Schultheis, J., Gunter, C., & Perkins-Veazie, P. (2021). Cell Wall Polysaccharide Composition of Grafted 'Liberty' Watermelon With Reduced Incidence of Hollow Heart Defect. FRONTIERS IN PLANT SCIENCE, 12. https://doi.org/10.3389/fpls.2021.623723

Trandel, M. A., Perkins-Veazie, P., Schultheis, J. R., Gunter, C. C., & Johannes, E. (2021). Grafting watermelon onto interspecific hybrid squash reduces hollow heart disorder. II INTERNATIONAL SYMPOSIUM ON VEGETABLE GRAFTING, Vol. 1302, pp. 225–232. https://doi.org/10.17660/ActaHortic.2021.1302.30

Suchoff, D. H., Jackson, B. E., Gunter, C. C., Schultheis, J. R., & Louws, F. J. (2021). Non-destructive characterization of grafted tomato root systems using the mini-horhizotron. II INTERNATIONAL SYMPOSIUM ON VEGETABLE GRAFTING, Vol. 1302, pp. 209–214. https://doi.org/10.17660/ActaHortic.2021.1302.28

Smith, S. C., Jennings, K. M., Monks, D. W., Chaudhari, S., Schultheis, J. R., & Reberg-Horton, C. (2020). Critical timing of Palmer amaranth (Amaranthus palmeri) removal in sweetpotato. WEED TECHNOLOGY, 34(4), 547–551. https://doi.org/10.1017/wet.2020.1

Lindley, J. J., Jennings, K. M., Monks, D. W., Chaudhari, S., Schultheis, J. R., Waldschmidt, M., & Brownie, C. (2020). Effect of bicyclopyrone herbicide on sweetpotato and Palmer amaranth (Amaranthus palmeri). WEED TECHNOLOGY, 34(4), 552–559. https://doi.org/10.1017/wet.2020.13

Trandel, M. A., Perkins-Veazie, P., & Schultheis, J. (2020). Predicting Hollow Heart Incidence in Triploid Watermelon (Citrullus lanatus). HORTSCIENCE, 55(12), 1926-+. https://doi.org/10.21273/HORTSCI15361-20

Grumet, R., Fei, Z., Levi, A., Mazourek, M., McCreight, J. D., Schultheis, J., … Wintermantel, W. M. (2020). The CucCAP project: leveraging applied genomics to improve disease resistance in cucurbit crops. VI INTERNATIONAL SYMPOSIUM ON CUCURBITS, Vol. 1294, pp. 91–104. https://doi.org/10.17660/ActaHortic.2020.1294.12

Baselga, F. M. de E., Schultheis, J. R., Boyette, M. D., Quesada-Ocampo, L. M., Starke, K. D., & Monks, D. W. (2020). Vine Removal Prior to Harvest, and Curing Duration and Temperature Affect the Incidence and Severity of Internal Necrosis in 'Covington' Sweetpotato. HORTTECHNOLOGY, 30(5), 544–551. https://doi.org/10.21273/HORTTECH04408-19

Suchoff, D. H., Schultheis, J. R., Gunter, C. C., Hassell, R. L., & Louws, F. J. (2019). Effect of rootstock and nitrogen fertilizer on growth and yield in watermelon. JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY, 94(6), 798–804. https://doi.org/10.1080/14620316.2019.1624629

Suchoff, D. H., Gunter, C. C., Schultheis, J. R., Hassell, R. L., & Louws, F. J. (2019). The effect of grafting on nitrogen use in determinate field-grown tomatoes. JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY, 94(1), 102–109. https://doi.org/10.1080/14620316.2018.1450645

Smith, S. C., Jennings, K. M., Monks, D. W., Schultheis, J. R., & Reberg-Horton, S. C. (2019). Tolerance of Sweetpotato to Herbicides Applied in Plant Propagation Beds. WEED TECHNOLOGY, 33(1), 147–152. https://doi.org/10.1017/wet.2018.103

Bertucci, M. B., Suchoff, D. H., Jennings, K. M., Monks, D. W., Gunter, C. C., Schultheis, J. R., & Louws, F. J. (2018). Comparison of Root System Morphology of Cucurbit Rootstocks for Use in Watermelon Grafting. HORTTECHNOLOGY, 28(5), 629–636. https://doi.org/10.21273/HORTTECH04098-18

McGowen, S. J., Jennings, K. M., Chaudhari, S., Monks, D. W., Schultheis, J. R., & Reberg-Horton, C. (2018). Critical Period for Palmer Amaranth (Amaranthus palmeri) Control in Pickling Cucumber. Weed Technology, 32(5), 586–591. https://doi.org/10.1017/wet.2018.58

Bertucci, M. B., Jennings, K. M., Monks, D. W., Schultheis, J. R., Louws, F. J., Jordan, D. L., & Brownie, C. (2018). Critical Period for Weed Control in Grafted and Nongrafted Watermelon Grown in Plasticulture. Weed Science, 67(2), 221–228. https://doi.org/10.1017/WSC.2018.76

Bertucci, M. B., Jennings, K. M., Monks, D. W., Schultheis, J. R., Perkins-Veazie, P., Louws, F. J., & Jordan, D. L. (2018). Early Season Growth, Yield, and Fruit Quality of Standard and Mini Watermelon Grafted onto Several Commercially Available Cucurbit Rootstocks. HORTTECHNOLOGY, 28(4), 459–469. https://doi.org/10.21273/HORTTECH04051-18

Bertucci, M. B., Jennings, K. M., Monks, D. W., Jordan, D. L., Schultheis, J. R., Louws, F. J., & Waldschmidt, M. D. (2018). Effect of Bicyclopyrone on Triploid Watermelon in Plasticulture. Weed Technology, 32(4), 439–443. https://doi.org/10.1017/WET.2018.36

Dittmar, P. J., Schultheis, J. R., Jennings, K. M., Monks, D. W., Chaudhari, S., Meyers, S., & Jiang, C. (2018). Effect of Cultivar, Ethephon, Flooding, and Storage Duration on Sweetpotato Internal Necrosis. HORTTECHNOLOGY, 28(3), 246–251. https://doi.org/10.21273/horttech03917-17

Suchoff, D. H., Perkins-Veazie, P., Sederoff, H. W., Schultheis, J. R., Kleinhenz, M. D., Louws, F. J., & Gunter, C. C. (2018). Grafting the Indeterminate Tomato Cultivar Moneymaker onto Multifort Rootstock Improves Cold Tolerance. HORTSCIENCE, 53(11), 1610–1617. https://doi.org/10.21273/HORTSCI13311-18

Bertucci, M. B., Jennings, K. M., Monks, D. W., Schultheis, J. R., Louws, F. J., & Jordan, D. L. (2018). Interference of Palmer amaranth (Amaranthus palmeri) Density in Grafted and Nongrafted Watermelon. Weed Science, 67(2), 229–238. https://doi.org/10.1017/WSC.2018.77

Beam, S. C., Chaudhari, S., Jennings, K. M., Monks, D. W., Meyers, S. L., Schultheis, J. R., … Main, J. L. (2018). Response of Palmer Amaranth and Sweetpotato to Flumioxazin/Pyroxasulfone. Weed Technology, 33(1), 128–134. https://doi.org/10.1017/wet.2018.80

Beam, S. C., Jennings, K. M., Chaudhari, S., Monks, D. W., Schultheis, J. R., & Waldschmidt, M. (2018). Response of Sweetpotato Cultivars to Linuron Rate and Application Time. WEED TECHNOLOGY, 32(6), 665–670. https://doi.org/10.1017/wet.2018.68

Suchoff, D. H., Gunter, C. C., Schultheis, J. R., Kleinhenz, M. D., & Louws, F. J. (2018). Rootstock Effect on Grafted Tomato Transplant Shoot and Root Responses to Drying Soils. HORTSCIENCE, 53(11), 1586–1592. https://doi.org/10.21273/HORTSCI13215-18

Suchoff, D. H., Schultheis, J. R., Kleinhenz, M. D., Louws, F. J., & Gunter, C. C. (2018). Rootstock Improves High-tunnel Tomato Water Use Efficiency. HORTTECHNOLOGY, 28(3), 344–353. https://doi.org/10.21273/horttech04015-18

Beam, S. C., Jennings, K. M., Monks, D. W., Schultheis, J. R., & Chaudhari, S. (2017). Influence of Herbicides on the Development of Internal Necrosis of Sweetpotato. Weed Technology, 31(6), 863–869. https://doi.org/10.1017/WET.2017.60

Barkley, S. L., Chaudhari, S., Schultheis, J. R., Jennings, K. M., Bullen, S. G., & Monks, D. W. (2017). Optimizing Sweetpotato Seed Root Density and Size for Slip Production. HORTTECHNOLOGY, 27(1), 7–15. https://doi.org/10.21273/horttech03435-16

Barkley, S. L., Schultheis, J. R., Chaudhari, S., Johanningsmeier, S. D., Jennings, K. M., Truong, V.-D., & Monks, D. W. (2017). Yield and Consumer Acceptability of 'Evangeline' Sweetpotato for Production in North Carolina. HORTTECHNOLOGY, 27(2), 281–290. https://doi.org/10.21273/horttech03533-16

Schultheis, J. R., Thornton, A. C., & Thompson, W. B. (2016). Evaluating pickling cucumber plant populations to maximize yield for once-over mechanical harvest in the southeastern United States. Xxix international horticultural congress on horticulture: sustaining lives, livelihoods and landscapes (ihc2014): international symposium on high value vegetables, root and tuber crops, and edible fungi production, supply and demands, 1123, 69–77.

Coleman, L. B., Chaudhari, S., Jennings, K. M., Schultheis, J. R., Meyers, S. L., & Monks, D. W. (2016). Evaluation of Herbicide Timings for Palmer Amaranth Control in a Stale Seedbed Sweetpotato Production System. WEED TECHNOLOGY, 30(3), 725–732. https://doi.org/10.1614/wt-d-15-00133.1

Meyers, S. L., Jennings, K. M., Schultheis, J. R., & Monks, D. W. (2016). Evaluation of Wick-Applied Glyphosate for Palmer Amaranth (Amaranthus palmeri) Control in Sweetpotato. WEED TECHNOLOGY, 30(3), 765–772. https://doi.org/10.1614/wt-d-16-00024.1

Jiang, C., Pesic-VanEsbroeck, Z., Osborne, J. A., & Schultheis, J. R. (2016). Factors Affecting Greenhouse Sweetpotato Slip Production. International Journal of Vegetable Science, 23(3), 185–194. https://doi.org/10.1080/19315260.2016.1228729

Barkley, S. L., Chaudhari, S., Jennings, K. M., Schultheis, J. R., Meyers, S. L., & Monks, D. W. (2016). Fomesafen Programs for Palmer Amaranth (Amaranthus palmeri) Control in Sweetpotato. WEED TECHNOLOGY, 30(2), 506–515. https://doi.org/10.1614/wt-d-15-00150.1

Schultheis, J. R., George, N. A., Pecota, K. V., Thompson, W. B., & Yencho, G. C. (2016). Potential yields of industrial sweetpotatoes using cut seed pieces planted at various dates. Acta Horticulturae, 1118(1118), 79–88. https://doi.org/10.17660/actahortic.2016.1118.12

Quesada-Ocampo, L. M., Withers, S., Butler, S., Birdsell, T., & Schultheis, J. (2015, May). First Report of Plectosporium Blight on Pumpkin and Squash Caused by Plectosporium tabacinum in North Carolina. PLANT DISEASE, Vol. 99, pp. 724–725. https://doi.org/10.1094/pdis-07-14-0770-pdn

Jiang, C., Perkins-Veazie, P., Blankenship, S. M., Boyette, M. D., Pesic-VanEsbroeck, Z., Jennings, K. M., & Schultheis, J. R. (2015). Occurrence, severity and initiation of internal necrosis in 'Covington' sweetpotato. HortTechnology, 25(3), 340–348.

Schultheis, J., Thompson, W., & Hassell, R. (2015). Specialty melon yield and quality response to grafting in trials conducted in the southeastern United States. I international symposium on vegetable grafting, 1086, 269–278. https://doi.org/10.17660/actahortic.2015.1086.34

Suchoff, D. H., Louws, F. J., Gunter, C. C., & Schultheis, J. R. (2014). 2013 On-farm Grafted Tomato Trial to Manage Bacterial Wilt. Acta Horticulturae (ISHS), 1086(1086), 119–127. https://doi.org/10.17660/actahortic.2015.1086.14

Biai, C. J., Garzon, J. G., Osborne, J. A., Schultheis, J. R., Gehl, R. J., & Gunter, C. C. (2013). Bell Pepper Seedling Phytotoxicity Due to Abscisic Acid Drench Applications. International Journal of Vegetable Science, 19(1), 4–12. https://doi.org/10.1080/19315260.2011.650297

Dittmar, P. J., Monks, D. W., Jennings, K. M., & Schultheis, J. R. (2013). Effects of Halosulfuron POST on Sweetpotato Yield and Storage Root Quality. WEED TECHNOLOGY, 27(1), 113–116. https://doi.org/10.1614/wt-d-11-00175.1

Clark, C. A., Silva, W. L., Arancibia, R. A., Main, J. L., Schultheis, J. R., van-Esbroecle, Z. P., … Smith, J. (2013). Incidence of end rots and internal necrosis in sweetpotato is affected by cultivar, curing, and ethephon defoliation. HortTechnology, 23(6), 886–897.

Biai, C. J., Garzon, J. G., Osborne, J. A., Schultheis, J. R., Gehl, R. J., & Gunter, C. C. (2011). Height control in three pepper types treated with drench-applied abscisic acid. HortScience, 46(9), 1265–1269.

George, N. A., Pecota, K. V., Bowen, B. D., Schultheis, J. K., & Yencho, G. C. (2011). [Review of Root Piece Planting in Sweetpotato-A Synthesis of Previous Research and Directions for the Future]. HORTTECHNOLOGY, 21(6), 703–711. https://doi.org/10.21273/horttech.21.6.703

Meyers, S. L., Jennings, K. M., Schultheis, J. R., & Monks, D. W. (2010). Evaluation of Flumioxazin and S-metolachlor Rate and Timing for Palmer Amaranth (Amaranthus palmeri) Control in Sweetpotato. WEED TECHNOLOGY, 24(4), 495–503. https://doi.org/10.1614/wt-d-09-00057.1

Willis, R. B., Abney, M. R., Holmes, G. J., Schultheis, J. R., & Kennedy, G. G. (2010). Influence of Preceding Crop on Wireworm (Coleoptera: Elateridae) Abundance in the Coastal Plain of North Carolina. JOURNAL OF ECONOMIC ENTOMOLOGY, 103(6), 2087–2093. https://doi.org/10.1603/ec10184

Meyers, S. L., Jennings, K. M., Schultheis, J. R., & Monks, D. W. (2010). Interference of Palmer Amaranth (Amaranthus palmeri) in Sweetpotato. WEED SCIENCE, 58(3), 199–203. https://doi.org/10.1614/ws-d-09-00048.1

Osmond, D. L., Cahill, S. L., Schultheis, J. R., Holmes, G. J., & Jester, W. R. (2010). Tillage Practices and Nitrogen Rates on Pickling Cucumber Production. International Journal of Vegetable Science, 17(1), 13–25. https://doi.org/10.1080/19315260.2010.499892

Dittmar, P. J., Monks, D. W., & Schultheis, J. R. (2010). Use of Commercially Available Pollenizers for Optimizing Triploid Watermelon Production. HORTSCIENCE, 45(4), 541–545. https://doi.org/10.21273/hortsci.45.4.541

Walters, S. A., & Schultheis, J. R. (2009). Directionality of pollinator movements in watermelon plantings. HortScience, 44(1), 49–52.

Hasse, R. L., Schultheis, J. R., Jester, W. R., Olson, S. M., & Miller, G. A. (2009). In-row Distance in Triploid Miniwatermelon Cultivars Affects Yield and Quality in Diverse Environments in the Southeastern United States. HORTTECHNOLOGY, 19(3), 538–545. https://doi.org/10.21273/hortsci.19.3.538

Dittmar, P. J., Monks, D. W., & Schultheis, J. R. (2009). Maximum Potential Vegetative and Floral Production and Fruit Characteristics of Watermelon Pollenizers. HORTSCIENCE, 44(1), 59–63. https://doi.org/10.21273/hortsci.44.1.59

Finney, D. M., Creamer, N. G., Schultheis, J. R., Wagger, M. G., & Brownie, C. (2009). Sorghum sudangrass as a summer cover and hay crop for organic fall cabbage production. RENEWABLE AGRICULTURE AND FOOD SYSTEMS, 24(3), 225–233. https://doi.org/10.1017/S174217050999007X

Yencho, G. C., Pecota, K. V., Schultheis, J. R., VanEsbroeck, Z.-P., Holmes, G. J., Little, B. E., … Truong, V.-D. (2008, October). 'Covington' sweetpotato. HORTSCIENCE, Vol. 43, pp. 1911–1914. https://doi.org/10.21273/hortsci.43.6.1911

Dittmar, P. J., Monks, D. W., Schultheis, J. R., & Jennings, K. M. (2008). Effects of Postemergence and Postemergence-Directed Halosulfuron on Triploid Watermelon (Citrullus Lanatus). Weed Technology, 22(3), 467–471. https://doi.org/10.1614/WT-07-056.1

Treadwell, D. D., Creamer, N. G., Hoyt, G. D., & Schultheis, J. R. (2008). Nutrient management with cover crops and compost affects development and yield in organically managed sweetpotato systems. HortScience, 43(5), 1423–1433.

Treadwell, D. D., Creamer, N. G., Schultheis, J. R., & Hoyt, G. D. (2007). Cover crop management affects weeds and yield in organically managed sweetpotato systems. WEED TECHNOLOGY, 21(4), 1039–1048. https://doi.org/10.1614/WT-07-005.1

MacRae, A. W., Monks, D. W., Batts, R. B., Thorton, A. C., & Schultheis, J. R. (2007). Sweetpotato tolerance to halosulfuron applied postemergence. WEED TECHNOLOGY, 21(4), 993–996. https://doi.org/10.1614/WT-060178.1

Hassell, R. L., Schultheis, J. R., Jester, W. B. R., Olson, S. M., Maynard, D. N., & Miller, G. A. (2007). Yield and quality of triploid miniwatermelon cultivars and experimental hybrids in diverse environments in the Southeastern United States. HortTechnology, 17(4), 608–617. https://doi.org/10.21273/horttech.17.4.608

Stanghellini, M. S., & Schultheis, J. R. (2005). Genotypic variability in staminate flower and pollen grain production of diploid watermelons. HortScience, 40(3), 752–755.

Gusmini, G., Schultheis, J. R., & Wehner, T. C. (2004). Rind thickness of watermelon cultivars for use in pickle production. HortTechnology, 14(4), 540–545.

Gusmini, G., Schultheis, J. R., & Wehner, T. C. (2004). Some considerations on speed of weighing watermelon fruit in yield trials. Report (Cucurbit Genetics Cooperative), (27), 49.

Stanghellini, M. S., Schultheis, JR, & Holmes, G. J. (2003). Adaptation and market potential of Jack o' Lantern and miniature pumpkin cultivars in eastern North Carolina. HORTTECHNOLOGY, Vol. 13, pp. 532–539. https://doi.org/10.21273/horttech.13.3.0532

Bryan, A. D., Pesic-Vanesbroeck, Z., Schultheis, J. R., Pecota, K. V., Swallow, W. H., & Yencho, G. C. (2003). Cultivar decline in sweetpotato: I. Impact of micropropagation on yield, storage root quality, and virus incidence in 'Beauregard'. Journal of the American Society for Horticultural Science, 128(6), 846–855.

Bryan, A. D., Schultheis, J. R., Pesic-Vanesbroeck, Z., & Yencho, G. C. (2003). Cultivar decline in sweetpotato: II. Impact of virus infection on yield and storage root quality in 'Beauregard' and 'Hernandez'. Journal of the American Society for Horticultural Science, 128(6), 856–863.

Neppl, G. P., Wehner, T. C., & Schultheis, JR. (2003). Interaction of border and center rows of multiple row plots in watermelon yield trials. EUPHYTICA, 131(2), 225–234. https://doi.org/10.1023/A:1023958321626

Holmes, G. J., & Schultheis, JR. (2003). Sensitivity of watermelon cultigens to ambient ozone in North Carolina. PLANT DISEASE, 87(4), 428–434. https://doi.org/10.1094/PDIS.2003.87.4.428

Stanghellini, M. S., Ambrose, J. T., & Schultheis, JR. (2002). Diurnal activity, floral visitation and pollen deposition by honey bees and bumble bees on field-grown cucumber and watermelon. JOURNAL OF APICULTURAL RESEARCH, 41(1-2), 27–34. https://doi.org/10.1080/00218839.2002.11101065

Yencho, G. C., Pecota, K. V., Schultheis, J. R., & Sosinski, B. R. (2002). Grower-participatory sweetpotato breeding efforts in North Carolina. Proceedings of the first international conference on sweetpotato food and health: Lima, Peru 26-29 July, 2001, 583(583), 69–76. https://doi.org/10.17660/actahortic.2002.583.6

Stanghellini, M. S., Schultheis, JR, & Ambrose, J. T. (2002). Pollen mobilization in selected cucurbitaceae and the putative effects of pollinator abundance on pollen depletion rates. JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE, 127(5), 729–736. https://doi.org/10.21273/jashs.127.5.729

Bonte, L., Villordon, A. Q., Schultheis, JR, & Monks, D. W. (2000). Black polyethylene tunnel covers affect plant production and quality of sweetpotato transplants. HORTSCIENCE, 35(2), 202–204. https://doi.org/10.21273/hortsci.35.2.202

Galloway, B. A., Monks, D. W., & Schultheis, JR. (2000). Effect of herbicides on pepper (Capsicum annuum) stand establishment and yield from transplants produced using various irrigation systems. WEED TECHNOLOGY, 14(2), 241–245. https://doi.org/10.1614/0890-037x(2000)014[0241:eohopc]2.0.co;2

Schultheis, J. R., Walters, S. A., & Adams, D. E. (1999). In-row plant spacing and date of harvest of 'Beauregard' sweetpotato affect yield and return on investment. HortScience, 34(7), 1229–1233.

Sanders, D. C., Cure, J. D., & Schultheis, JR. (1999). Yield response of watermelon to planting density, planting pattern, and polyethylene mulch. HORTSCIENCE, 34(7), 1221–1223. https://doi.org/10.21273/hortsci.34.7.1221

Monks, D. W., & Schultheis, J. R. (1998). Critical weed-free period for large crabgrass (Digitaria sanguinalis) in transplanted watermelon (Citrullus lanatus). Weed Science, 46(5), 530–532.

Ferko, B. L., Poore, M. H., Schultheis, J. R., & Rogers, G. M. (1998). Feeding potato and sweetpotato byproducts to beef cattle. Veterinary Medicine, 93(1), 82-.

Schultheis, JR, Wehner, T. C., & Walters, S. A. (1998). Optimum planting density and harvest stage for little-leaf and normal-leaf cucumbers for once-over harvest. CANADIAN JOURNAL OF PLANT SCIENCE, 78(2), 333–340. https://doi.org/10.4141/P97-065

Stanghellini, M. S., Ambrose, J. T., & Schultheis, JR. (1998). Seed production in watermelon: A comparison between two commercially available pollinators. HORTSCIENCE, 33(1), 28–30. https://doi.org/10.21273/hortsci.33.1.28

Stanghellini, M. S., Ambrose, J. T., & Schultheis, J. R. (1998). Using commercial bumble bee colonies as backup pollinators for honey bees to produce cucumbers and watermelons. HortTechnology, 8(4), 590–594. https://doi.org/10.21273/horttech.8.4.590

Schultheis, J. R., & Walters, S. A. (1998). Yield and virus resistance of summer squash cultivars and breeding lines in North Carolina. HortTechnology, 8(1), 31. https://doi.org/10.21273/horttech.8.1.31

Schultheis, J. R., Wehner, T. C., & Walters, S. A. (1997). Mixtures of cucumber cultigens affect yield in a multiple-harvest system. HortScience, 32(6), 1024–1027.

Stanghellini, M. S., Ambrose, J. T., & Schultheis, J. R. (1997). The effects of honey bee and bumble bee pollination on fruit set and abortion of cucumber and watermelon. American Bee Journal, 137(5), 386–391.

SCHULTHEIS, JR, AMBROSE, J. T., BAMBARA, S. B., & MANGUM, W. A. (1994). SELECTIVE BEE ATTRACTANTS DID NOT IMPROVE CUCUMBER AND WATERMELON YIELD. HORTSCIENCE, 29(3), 155–158. https://doi.org/10.21273/hortsci.29.3.155

SCHULTHEIS, JR, & DUFAULT, R. J. (1994). WATERMELON SEEDLING GROWTH, FRUIT YIELD, AND QUALITY FOLLOWING PRETRANSPLANT NUTRITIONAL CONDITIONING. HORTSCIENCE, 29(11), 1264–1268. https://doi.org/10.21273/hortsci.29.11.1264

Schultheis, J. R. (1992). Survey of cucumber cultivars grown in North Carolina. Report (Cucurbit Genetics Cooperative), (15), 9.