Browsing by Author "Goncharuk, Violetta"

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APPLICATION OF THE GROWTH REGULATOR FITOVITAL IN THE PLANT PROTECTION SYSTEM
(CEP USM, 2023) Goncharuk, Violetta; Bulavina, Tamara; Bulavin, L.; Vlasov, A.
The results are presented showing the possibility of using the plant growth regulator Fitovital as an environmentally friendly means of influencing plants. The drug can be used to increase the productivity of agricultural crops and improve the quality of the products obtained while reducing the pesticide load on the environment.
EFICACITATEA TRATĂRII PLANTELOR LA CARTOF CU SUSPENSII DE BACTERII ENTOMOPATOGENE ÎN SINERGIE CU DERIVAȚI AI ACIDULUI PARA-AMINOBENZOIC
(CEP USM, 2023) Zavtony, Panteleimon; Stîngaci, Aurelia; Șcerbacova, Tatiana; Samoilova, Anna; Goncharuk, Violetta; Lisouskaya, Maria; Mihalichiuk, Al.
Researchers from the Republic of Moldova jointly with those from the Republic of Belarus have conducted studies on the growing conditions in 2022 for the "Riviera" potato variety, assessing the influence of the consequences of unfavorable climatic factors on the formation of the photosynthetic potential and productivity of plants, the quantity and quality of the harvest. Thus, after the second decade of May 2022, at the USM's IGFPP potato lot, experiments were mounted according to the scheme: treatment with para-aminobenzoic acid (PABA) derivatives 10-2,10-4, 10-6 in complex with Bacillus thuringhiensis cousin. thuringhiensis (1.5x109UCF/ml) and control – water sprinkling in the variants of experiences. Infurrow and foliar treatments were applied to potatoes with para-aminobenzoic acid (PABA) derivatives 10-2, 10-4, 10-6 mixed with Bacillus thurigiensis var. thuringiensis. The biological activity of the derivatives of para-aminobenzoic acid (PABA)10-2, 10-4, 10-6 mol/l was determined in a mixture with Bacillus thuringhiensis var. thuringhiensis (1.5x109UCF/ml) in the experimental batch of potato for the development of biological plant protection products.
STUDIU EFICACITĂȚII COMPLEXE AL AGENȚILOR BIOLOGICI LA MĂR ȘI CARTOF LA TEMPERATURI RIDICATE
(CEP USM, 2023) Stîngaci, Aurelia; Zavtony, Panteleimon; Șcerbacova, Tatiana; Samoilova, Anna; Goncharuk, Violetta; Lisouskaya, Maria; Mihalichiuk, Al.
Products of microbial origin in combination with para-aminobenzoic acid (PABA) derivatives, can be the basis for organic farming and plant resistance to unfavorable environmental factors inducing, as well as for the crop yield increasing. The article presents the results of the study of efficiency of fruit-cultures and potato plantations treatment with aqueous suspensions of entomopathogenic bacteria Bacillus thuringiensis subsp. kurstaki and Bacillus thuringiensis var. thuringiensis with addition of para-aminobenzoic acid derivatives solutions in concentrations 10-2, 10-4, 10-6 mol/l. An increase in the average weight of fruits and tubers and a reduction in disease and insect damage were observed in all variants of the experiment compared to the control. The studied derivatives exhibited higher biological activity at the lower concentration than PABA. The best trial was treatment with a mixture of Bacillus thuringiensis subsp. kurstaki with the addition of an aqueous solution of PABA at concentrations of 10-4 and 10-6 mol/l. It was shown that the use of Bacillus spp. with the addition of the para-aminobenzoic acid derivatives solutions, leads to an improvement in the functional state of plants, contributing to the activation of the active resistance mechanisms to the action of the stress factors. The results obtained demonstrate the possibility of using entomopathogenic bacteria in a tank mixture with PABA for the creation of biological preparations as alternatives to pesticides and the development of biological methods of plant protection.