James Schupp

Affiliate Researcher
Titles and Affiliations
Professor, Plant Science

Research Summary

Involved in tree fruit research, which includes mechanization of peach and apple orchards; cultivar evaluations for apple, Asian pear and sweet cherry; evaluating apple and peach orchard systems; organic apple production; apple crop load management; apple.

In the News

Research Keywords

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Recent Publications

'Bell' Pear

Bell, R. L., Schupp, J. R., Dardick, C., Demuth, M. & Gottschalk, C., Aug 2023, In: HortScience. 58, 8, p. 832-835 4 p.

Research output: Contribution to journalArticlepeer-review

Converting Tall Spindle Apple Trees to Narrow Walls with Summer and Dormant Hedging Plus Root Pruning

Campbell, T., Schupp, J. R. & Marini, R. P., Jun 2023, In: HortScience. 58, 6, p. 620-627 8 p.

Research output: Contribution to journalArticlepeer-review

Green fruit segmentation and orientation estimation for robotic green fruit thinning of apples

Hussain, M., He, L., Schupp, J., Lyons, D. & Heinemann, P., Apr 2023, In: Computers and Electronics in Agriculture. 207, 107734.

Research output: Contribution to journalArticlepeer-review

Bloom and Postbloom Thinner Effects and Interactions on 'Gala' Fruit Growth Rate, Return Bloom, and Yield Responses at Three Locations

Larson, J. E., Greene, D. W., Schupp, J. R., Clavet, C. D. & Kon, T. M., Nov 2023, In: HortScience. 58, 11, p. 1418-1426 9 p.

Research output: Contribution to journalArticlepeer-review

AN ADVANCED ROBOTIC SYSTEM FOR PRECISION CHEMICAL THINNING OF APPLE BLOSSOMS

Mu, X., Hussain, M., He, L., Heinemann, P., Schupp, J., Karkee, M. & Zhu, M., 2023, In: Journal of the ASABE. 66, 5, p. 1125-1134 10 p.

Research output: Contribution to journalArticlepeer-review

Mask R-CNN based apple flower detection and king flower identification for precision pollination

Mu, X., He, L., Heinemann, P., Schupp, J. & Karkee, M., Aug 2023, In: Smart Agricultural Technology. 4, 100151.

Research output: Contribution to journalArticlepeer-review

Green Fruit Removal Dynamics for Development of Robotic Green Fruit Thinning End-Effector

Hussain, M., He, L., Schupp, J. & Heinemann, P., 2022, In: Journal of the ASABE. 65, 4, p. 779-788 10 p.

Research output: Contribution to journalArticlepeer-review

Using Logistic Regression to Predict the Probability That Individual ‘Honeycrisp’ Apples Will Develop Bitter Pit

Marini, R. P., Lavely, E. K., Baugher, T. A., Crassweller, R. & Schupp, J. R., Mar 2022, In: HortScience. 57, 3, p. 391-399 9 p.

Research output: Contribution to journalArticlepeer-review

Establishment performance of the 2017 NC-140 vigor-limiting peach rootstock trial across ten sites in North America

Minas, I. S., Reighard, G. L., Black, B., Cline, J. A., Chavez, D. J., Coneva, E., Lang, G. A., Parker, M., Robinson, T. L., Schupp, J., Francescato, P., Lordan, J., Beckman, T., Shane, W. W., Pieper, J. R., Sterle, D. G., Bakker, C., Clark, B., Ouellette, D., Swain, A., & 1 othersWinzeler, H. E., Sep 2022, In: Acta Horticulturae. 1346, p. 669-675 7 p.

Research output: Contribution to journalArticlepeer-review

An Apple Tree Branch Pruning Analysis

Zahid, A., Mahmud, M. S., He, L., Schupp, J., Choi, D. & Heinemann, P., Apr 2022, In: HortTechnology. 32, 2, p. 90-98 9 p.

Research output: Contribution to journalArticlepeer-review

Investigation of branch accessibility with a robotic pruner for pruning apple trees

Zahid, A., He, L., Choi, D., Schupp, J. & Heinemann, P., 2021, In: Transactions of the ASABE. 64, 5, p. 1459-1474 16 p.

Research output: Contribution to journalArticlepeer-review

Technological advancements towards developing a robotic pruner for apple trees: A review

Zahid, A., Mahmud, M. S., He, L., Heinemann, P., Choi, D. & Schupp, J., Oct 2021, In: Computers and Electronics in Agriculture. 189, 106383.

Research output: Contribution to journalReview articlepeer-review

Thermal properties of ‘Gala’ apples during growing season for predicting harvest time

Caliskan-Aydogan, O., Yi, H., Schupp, J. R., Choi, D. D., Heinemann, P. H. & Puri, V. M., 2020, In: Transactions of the ASABE. 63, 2, p. 305-315 11 p.

Research output: Contribution to journalArticlepeer-review

Screening thermal shock as an apple blossom thinning method. II. pollen tube growth and spur leaf injury in response to temperature and duration of thermal shock

Kon, T. M., Schupp, M. A., Winzeler, H. E. & Schupp, J. R., May 2020, In: HortScience. 55, 5, p. 632-636 5 p.

Research output: Contribution to journalArticlepeer-review

Screening thermal shock as an apple blossom thinning method. I. stigmatic receptivity, pollen tube growth, and leaf injury in response to temperature and timing of thermal shock

Kon, T. M., Schupp, M. A., Winzeler, H. E. & Schupp, J. R., May 2020, In: HortScience. 55, 5, p. 625-631 7 p.

Research output: Contribution to journalArticlepeer-review