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

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

Verification and modification of a model to predict bitter pit for 'Honeycrisp' apples

Marini, R. P., Baugher, T. A., Muehlbauer, M., Sherif, S., Crassweller, R. & Schupp, J. R., Dec 2020, In: HortScience. 55, 12, p. 1882-1887 6 p.

Research output: Contribution to journalArticlepeer-review

Development of an integrated 3R end-effector with a cartesian manipulator for pruning apple trees

Zahid, A., Mahmud, M. S., He, L., Choi, D., Heinemann, P. & Schupp, J., Dec 2020, In: Computers and Electronics in Agriculture. 179, 105837.

Research output: Contribution to journalArticlepeer-review

Development of a robotic end-effector for apple tree pruning

Zahid, A., He, L., Zeng, L., Choi, D., Schupp, J. & Heinemann, P., 2020, In: Transactions of the ASABE. 63, 4, p. 847-856 10 p.

Research output: Contribution to journalArticlepeer-review

Estimating apple fruit size distribution from early-season fruit diameter measurements

Marini, R. P., Schupp, J. R., Baugher, T. A. & Crassweller, R., 2019, In: HortScience. 54, 11, p. 1947-1954 8 p.

Research output: Contribution to journalArticlepeer-review

Relationships between fruit weight and diameter at 60 days after bloom and at harvest for three apple cultivars

Marini, R. P., Schupp, J. R., Baugher, T. A. & Crassweller, R., Jan 2019, In: HortScience. 54, 1, p. 86-91 6 p.

Research output: Contribution to journalArticlepeer-review