ISHI best practices are developed to ensure accurate and reliable seed health test results.


To ensure accurate and reliable results, ISHI has described best practices for assays used in routine seed health testing, using the collective expertise and experience of its members. The ISHI methods follow ISHI best practices. The best practices are intended to provide general guidance to laboratories developing and using seed health tests including the number and types of controls necessary for a robust seed health test.

The table below presents all best practice documents.

Best Practices in Seed Health TestsPublication Year
Biological Assays2021
Blotter and Agar Plating2021
Dilution Plating Assays2020
ELISA Assays2019
PCR Assays2019
Sweat Box and Grow-Out Assays2021