Compositions of Fungicides with Growth Regulators which Reduce the Retarding Effect of Crop Protectants

Abstract

One of the reasons for the decrease in the yield of crops is the retardant effect of fungicides. In addition, many fungicides have a toxigenic effect on the mycelium of the fungus. The combination of a fungicide and a plant growth stimulant in a complex preparation can help to reduce the level of the negative effect of the pesticide. It is proposed to introduce individual growth regulators and their combination into the composition of the seed protectant in doses of 50, 100, 200 g/l. The length and the weight of the root and shoot of seedlings under the influence of the seed protectant were less than in the control, and the weight of the endosperm of grain was greater. Under the influence of the seed protectant and gibberellic acid, the length of the shoots corresponded to the control, but their weight was decreased. Indolylbutyric acid, added to the seed protectant, contributed to the effective consumption of spare substances of the endosperm of grain and root growth. Under the influence of the protectant and diphenylurea, the length and the weight of the shoot increased significantly in a balanced manner. The composition of the protectant and the named growth regulators in minimal doses affected the growth of the roots and shoots in the best way of all variants. Preference should be given to low doses of phytohormones and their combination.