The breeding experience of Catalpa bignonioides walter. by the method of cutting

Abstract

The issues of successful green farming in urbanized areas do not lose their relevance. The purpose of this study is to choose the optimal method of reproduction of the bigononiform catalpa by cuttings. An important step is the selection of an assortment of tree species, taking into account their adaptive ability. The article provides a justification for the relevance of this direction, the research methodology used, the characteristics of the material for cuttings and the objects on which the cuttings of the bigononiform catalpa were harvested. The rooting of cuttings harvested in February was only 20%. A positive point was the 100% survival rate of rooted cuttings of winter harvesting. The sowing of catalpa seeds of the reproduction of the Mytishchi branch of the Bauman Moscow State Technical University in the soil and on the nutrient medium did not produce seedlings. The article presents the results of rooting cuttings of catalpa harvested in May. For the purpose of introduction tests, the city of Mytishchi and the city of Sochi were identified as the place of harvesting. Based on the results obtained, it was found that the highest percentage of catalpa cuttings rooting was noted in conditions of their germination in a container with an aqueous solution of a growth stimulant and air supply by means of an aquarium  compressor. During the study, it was suggested that the degree of rooting and growth of cuttings may depend on the sanitary condition of the trees on which they were harvested. Catalpa bigonia is of interest as a fast-growing ornamental woody plant resistant to urban conditions, not affected by pests and diseases.