Demonstration of allelopathy of horseradish root extract on lettuce seed

Allelopathy plays crucial roles in invasive plant viability and agricultural production systems. However, there is no well‐established hands‐on learning activity to teach the concept of allelopathy. Nor is there an activity which allows students to gain knowledge about glucosinolates and their corresponding enzyme, myrosinase, which are present in almost all Brassica crops. Lettuce germination was counted by the students from three different...