AlzChem Global


Product Group: Plant growth regulator

Dormex® is a plant growth regulator used in vineyards and orchards to break bud dormancy and stimulate more uniform and earlier bud break. Treatment with Dormex® is necessary in regions with mild winters, where natural chilling is not sufficient to satisfy the chilling requirement of the target crops. The  proper application of Dormex® increases the number of emerging buds, which in turn leads to impressive yield increases. Furthermore, Dormex® has proved to considerably advance bloom and harvest time in various regions worldwide.

The active ingredient of Dormex® is hydrogen cyanamide, a substance which is also present in nature. For example, plants like hairy vetch synthesize cyanamide for self-defence purposes.

Dormex® is manufactured in Germany under high quality standards, proved by ISO 9001 and TÜV certificates. These high standards for production and handling, assure that the product performs as indicated.

Dormex® is the perfect tool to manage production and harvest time in temperate zone crops. Ongoing research programs support the development of best practices to optimize the growth of crops under ever changing and often challenging conditions.


Storage and Safety instructions


Dormex® is temperature sensitive. It should always be stored below 20 °C. Higher temperatures reduce the shelf-life significantly. Never let Dormex® stand in the full sun or apply temperatures above 40°C even for short periods. Place in a temperature controlled environment soon after purchase.

Always comply with the safety instructions provided in our safety data sheet!

José Martínez

José Martínez

+49 8621 86-2897


A uniform maturity at harvest depends on getting a uniform bud break. All deciduous fruit crops need a sufficient amount of winter chilling hours to resume normal growth in spring. In regions with mild or without winters, bud break is not optimal and consequently yield is reduced.

Dormex® partially substitutes the lack of chilling hours and ensures an optimal bud break by releasing the plant from dormancy.

Depending on the application time, Dormex® can advance bud break and consequently harvest time. This effect can be used by growers effectively to stagger the harvest time in order to fetch the highest crop market prices or utilize labor for fruit picking efficiently.

The optimal DORMEX® application rate and time depends on chilling exposure during dormancy and on other factors like crop variety, growth vigor, stress etc. These factors may vary distinctly depending on the local climatic conditions. Please, follow the instructions on the product label and contact your local distributor for the best application rate and timing under your conditions.

As DORMEX is a contact chemical, there is no translocation within the plant. Therefore, a thorough covering of the bud with the spray solution is essential. Use big droplets and a high spray volume. Spray until point of run off. Do not apply if rain is expected within 4 hours of application.


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