The effects of foliar application of cytokinins on potato yields in southeastern Idaho
The “Cytex” product, a commercial seaweed extract containing natural cytokinins, was tested as a foliar spray for seven years, using several potato clones and several rates and dates of application. Throughout seven years, the Russet Burbank cultivar showed no measurable response to the “Cytex” product. Application of kinetin in a single season also produced no response.
Throughout five years of testing, the Lemhi Russet showed a substantial yield response in one year, a moderate response in a second year, and a possible small response to 1 of 6 treatments in a third year. The best time for application is during the 2-week period directly following tuber initiation.
Key WordsPotato cytokinin kinetin Cytex growth regulators
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