Abstract
The paper presents the results of the investigation of the species specificity of glycosides from the wild plant Linaria vulgaris Mill. on traditionally grown vegetables in Moldova – carrots, onions, eggplants, and tomatoes. Their significant stimulating impact has been noted on the germination, growth, and development of vegetables contributing to a complete implementation of their productive potential, quality improvement and marketable presentation of the products. Strong confirmation has been obtained after many years research that the effectiveness of the impact of the natural bio-regulator largely depends on the type of the vegetable crop. Recommendations have been given on the practical use of the natural bio-regulator from Linaria vulgaris for pre-sowing soaking of vegetable seeds as the technique for cultivating of vegetable crops in the greenhouses and the field.