Forchlorfenuron is a cytokinin. A plant growth regulator used in agriculture and horticulture to increase fruit size of fruits, e.g. kiwi fruit and table grapes to promote cell division, to improve the quality of fruits and to increase yields. Forchlorfenuron is a cytokinin, which improves fruit size, fruit set, cluster weight and cold storage in grapes and kiwifruits. Forchlorfenuron acts synergistically with natural auxins to promote plant cell division and lateral growth. This plant growth regulator causes an increase in berry or fruit size, including varieties not tolerant to gibberellic acid (certain grape varieties and kiwifruits) Application rates are extremely low. For grapes, lower use rates minimize harvest delay, while the higher use rates of 8 to 10 grams active ingredient (a.i.) per acre (A) maximizes berry size and harvest delay. For kiwi fruit, application rate ranges from 2 to 8 grams a.i./A.
Forchlorfenuron is disolved with an organic solvent such as alcohol.