Efficiency of Verbascum densiflorum Bertol. bioregulators in stimulation of vegetable growth and development
https://doi.org/10.18619/2072-9146-2020-5-54-59
Abstract
Relevance. Increasing the resistance of vegetable plants to unfavorable growing conditions with the use of growth regulators that actively affect the seed quality, increase the survival rate of seedlings, stimulate the setting, formation and maturation of the crop is a significant reserve for increasing productivity with the already achieved level of intensification of their production.
Material and methods. The effect of verbascosides obtained by exhaustive extraction with 60% aqueous ethyl alcohol from the aboveground part of Verbascum densiflorum Bertol. (Scrophulariaceae) was studied on the germination, growth, development and yield of tomatoes, cucumbers, onions and white cabbage. Before sowing, the seeds were soaked in an aqueous solution of verbascosides for 15-20 minutes, followed by drying to flowability at the rate of 0.5-0.8 liters of solution per 1 kg of seeds.
Results. It is shown, that possessing phytoregulatory activity and influencing the metabolic and synthetic reactions of plants, these compounds, applied exogenously, stimulate the seed germination energy and total germination of vegetable crops, provide simultaneous appearance of seedlings and optimal plant density, accelerate the growth dynamics of plants assimilation surface and fruit mass. Reducing the consequences of stresses arising in the process of plant growth and development, they thereby contribute to increasing plant resistance, productivity and improving the commercial quality of the products. The ability of these compounds to improve the production process of vegetable crops, depending on the type and variety of vegetables was established. Their highest stimulating effect was determined on cabbage variants, where the yield exceeded the control by 34.3%. The performed studies and obtained results allow to recommend the pre-sowing seed treatment with a 0.01% solution of biological active substances from Verbascum densiflorum Bertol. as an element in technology of growing vegetable.
About the Authors
A. D. Borovskaya
Institute of Genetics, Physiology and Plant Protection
Moldova, Republic of
Moldova, Republic of
Alla D. Borovskaya – Researcher
20, Padurii St., Chisinau, MD-2002,
N. E. Mashchenko
Institute of Genetics, Physiology and Plant Protection
Moldova, Republic of
Moldova, Republic of
Natalya E. Mashchenko – Cand. Sci. (Chem.), Leading Researcher
20, Padurii St., Chisinau, MD-2002,
R. A. Ivanova
Institute of Genetics, Physiology and Plant Protection
Moldova, Republic of
Moldova, Republic of
Raisa A. Ivanova – Cand. Sci. (Techn.), Head laboratory of natural bioregulators
20, Padurii St., Chisinau, MD-2002,
A. V. Gumanyuk
Transnistrian Research Institute of Agriculture
Moldova, Republic of
Moldova, Republic of
AlexeyV.Gumanyuk–Doc.Sci.(Agriculture), head. Technology Department
Tiraspol
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Review
For citations:
Borovskaya A.D., Mashchenko N.E., Ivanova R.A., Gumanyuk A.V. Efficiency of Verbascum densiflorum Bertol. bioregulators in stimulation of vegetable growth and development. Vegetable crops of Russia. 2020;(5):54-59. (In Russ.) https://doi.org/10.18619/2072-9146-2020-5-54-59
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