An integrated seed health approach evaluates how best to combine seed health management components: high-quality seed, disease resistance, and on-farm management.

The following link goes to an interactive Shiny interface designed by Y. Xing and S. Thomas-Sharma, for exploring the behavior of the seed degeneration model developed by Thomas-Sharma et al. (2017).

The corresponding R package, seedHealth, is available through GitHub:


Garrett, K. A., and Y. Xing. 2021. User guide to the seedHealth model as part of the integrated seed health approach. CGIAR Research Program on Roots, Tubers and Bananas (RTB). RTB User Guide. No. 2021-5. Lima, Peru. [open access link]

Thomas-Sharma, S., A. Abdurahman, S. Ali, J. L. Andrade-Piedra, S. Bao, A. O. Charkowski, D. Crook, M. Kadian, P. Kromann, P. C. Struik, L. Torrance, K. A. Garrett, and G. A. Forbes. 2016. Seed degeneration in potato: the need for an integrated seed health strategy to mitigate the problem in developing countries.  Plant Pathology 65:3-16. [link]

Thomas-Sharma, S., J. Andrade-Piedra, M. Carvajal Yepes, J. Hernandez Nopsa, M. Jeger, R. Jones, P. Kromann, J. Legg, J. Yuen, G. A. Forbes, and K. A. Garrett. 2017. A risk assessment framework for seed degeneration: Informing an integrated seed health strategy for vegetatively-propagated crops. Phytopathology 107:1123-1135. [open access link]