Chlorpropham

Chlorpropham belongs to the carbamate chemical class and is an effective plant growth regulator, specifically a sprout inhibitor. The substance actively blocks cell division in meristematic tissues, thereby stopping the development of sprouts on tubers and root crops.

The mode of action involves disrupting mitosis in growth points. The active ingredient penetrates plant tissues and puts them into a state of deep physiological dormancy, preventing the loss of moisture and nutrients during long-term storage.

The effectiveness of the product directly depends on the uniformity of its distribution in the storage facility. Most often, chlorpropham is applied as an aerosol, which creates a dense layer of the active substance on the surface of all products in the storage.

It is important to note that chlorpropham does not possess curative properties against fungal or bacterial infections. Its main task is to maintain crop quality by suppressing natural aging and sprouting processes.

The duration of the protective effect is determined by the concentration of the substance and the temperature regime in the storage. It is recommended to strictly follow the dosages, as an excess of the substance can negatively affect the subsequent processing of the produce.

The primary purpose of chlorpropham is the treatment of potatoes intended for long-term storage. It significantly reduces shrinkage and preserves the marketability of tubers until late spring and early summer.

In addition to potatoes, the substance can be used to treat onions and certain other vegetable crops that are prone to premature sprouting when temperature control in storage facilities is compromised.

Application rates depend on the varietal characteristics of the crop, the intended use of the produce, and the type of application equipment. Calculations are usually made per ton of product or cubic meter of storage volume.

Treatment should be carried out in sealable rooms to ensure efficient aerosol circulation. It is crucial to initiate the procedure before visible signs of sprouting appear on the tubers.

The use of chlorpropham is strictly regulated in the European Union and several other regions due to established strict standards for residual levels of the substance in produce. It is necessary to observe the required pre-harvest intervals before the produce is released to the market.

Application of chlorpropham on seed potatoes is strictly prohibited, as growth inhibition is an irreversible process. Seed material treated with this agent loses its sowing quality and germination capacity.