Agriculture and forestry

Vdovenko Sergiy Anatolyevich – Doctor of Agricultural Sciences, Professor of the Department of Landscape Management, Forestry Horticulture and Viticulture of Vinnytsia National Agrarian University (21008, Vinnytsya, Soniachna St., 3 e-mail: vd_sa@vsau.vin.ua).

Shevchuk Victoria – postgraduate student of the Department of Agriculture, Soil Science and Agrochemistry of the Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3 е-mail: Vvictoriya07@gmail.com).

Shevchuk Oksana – PhD of Biological Sciences, Associate Professor of department of of Biology, Vinnytsia State Pedagogical University named after Mikhail Kotsyubinsky (21001, Vinnitsa, Ostrozkogo St. 32. E-mail: shevchukoksana8@gmail.com).

Dedov Alexander – PhD of Agricultural Sciences, Associate Professor of the Department of Geography, Vinnitsa State Pedagogical University named after Mikhail Kotsyubinsky (21001, Vinnytsia, Ostrovsky St., 32).

Biostimulants are the kind of "doping", due to which crops gain great vitality for crop formation. Growth stimulating drugs make a positive effect on the soil microflora, they are rapidly transformed by soil microorganisms, plant cells. The aim of the work was to substantiate scientifically the use of stimulating growth regulators – Epin-extra, Agorostimulin, Rival, and Kornevin, as the elements of soybean growing technology; to identify their effect on biological characteristics and seed productivity of the crop. The research was conducted on soybean variety Millennium. Pre-sowing experimental treatments of seeds were carried out with aqueous solutions of Epin-extra (0,025 g l), Agorostimulin (1 ml/l), Rival (1 ml/l) and Kornevin (0,5 g/l), and control – with water. During the study laboratory germination and energy of germination of seeds, and also morphometric indicators of seedlings and roots were defined. It was found that the pre-sowing treatment of soybean seeds of Millennium variety with stimulant drugs – Epin-extra (0,025 g/l), Agorostimulin (1 ml/l), Rival (1 ml/l) and Cornevin (0,5 g/l) increased seed productivity. In all variants of the experiment, both germination energy and seed germination were increased. It was found that the most effective drugs for the increase of germination energy and seed germination of Millennium soybeans are Epin-extra (0,025 g/l) and Agorostimulin (1 ml/l).

Under the action of plant growth stimulators, morphometric changes occurred in soybean seedlings. The drugs affected the length of the hypocotyls in seedlings of soybean culture. Under the use of Epin-extra (0,025 g/l) the length of hypocotyls increased by 18 %, under the action of Agorostimulin (1 ml/l) – by 32 %, under Cornevin (0,5 g/l) treatment - by 41 % and after the use of the drug Rival (1 ml/l) –  by 85 %. Stimulators helped to lengthen the main root of soybean seedlings. The largest indicator of the length of the main root was found under the treatment of such drugs Riaval and Agorostimulin. It was found that all studied drugs contributed to the regrowth of lateral roots in soybean seedlings, but the best effect was observed under the usage of the drug Cornevin (0,5 g/l).

The significant increase in the dry weight of Millennium soybean seedlings was revealed with the use of stimulating plant growth regulators. The increase of the dry weight of soybean seedlings was detected under the pre-sowing treatment of seeds with Cornevin (by 36 %), Agrostimulin (by 50 %), and Rival (by 88 %) in comparison to the control. Pre-sowing treatment of soybean seeds leads to the increase of dry weight of roots. The best effect on the increase of dry weight of roots was found under the use of drugs Cornevin and Agrostimulin. The use of Epin-extra and Rival also led to a positive result, but not as significant as after the use of two previous drugs that were given above.

1.Tkachuk, O. O., Shevchuk, O. A. (2018). Perspektyvy vykorystannia rehuliatoriv rostu roslyn stymuliuiuchoi dii [Prospects for the use of plant growth regulators of stimulating action]. Aktualni pytannia heohrafichnykh, biolohichnykh ta khimichnykh nauk: osnovni naukovi problemy ta perspektyvy doslidzhennia. Zbirnyk naukovykh prats VDPU – Collection of scientific works of VSPU. 46–48. [in Ukrainian].

2.Shevchuk O. A., Tkachuk O. O., Bakhmat Yu. O. (2017). Zastosuvannia rehuliatoriv rostu roslyn u roslynnytstvi [Application of plant growth regulators in crop production]. «Veda a technologia: krok do budoucnosti – 2017». Materialy ХIII Meznarodni vedecko-practicka konference. Issue 9. C. 38–43. [in Czech Republic].

3.Shevchuk О. A., Kravets O. O., Shevchuk V. V., Khodanitska O. O. , Tkachuk O. O., Golunova L. А., Polyvanyi S. V., Knyazyuk O. V., Zavalnyuk O. L.(2020). Features of leaf mesostructure organization under plant growth regulators treatment on broad bean plants. Modern Phytomorphology. 2020. 14. РР. 104–106. [in Ukrainian].

4.Babych A. O., Babych-Poberezhna A. A. (2011). Selektsiia, vyrobnytstvo, torhivlia i vykorystannia soi u sviti [Selection, production, trade and use of soybeans in the world]. K.: Ahrarna nauka. 2011. 548 s. [in Ukrainian].

5.Ilchuk M. M., Konoval I .I. (2014). Vyrobnytstvo soi v Ukraini ta yoho resursne zabezpechennia na perspektyvu [Soybean production in Ukraine and its resource provision for the future]. Bioresursy i pryrodokorystuvannia – Bioresources and nature management. 2014. Issue 6 (1-2). 131–137. [in Ukrainian].

6.Shevchuk O. A. (2020). Vplyv ristrehuliuvalnykh preparativ na laboratornu skhozhist nasinnia bobiv kormovykh [Influence of ristregulatory drugs on laboratory germination of fodder bean seeds]. Aktualni pytannia suchasnoi biolohichnoi nauky ta metodyky yii vykladannia. Zbirnyk naukovykh prats zvitnoi naukovoi konferentsii vykladachiv za 2019-2020 n.r. – Collection of scientific works of the reporting scientific conference of teachers for 2019-2020 academic year. Vinnytsia. 43–58. [in Ukrainian].

7.Lychmaniuk Yu. V., Kravchuk I. M., Oliinyk T. V. ta in. (2019). Laboratorna skhozhist nasinnia bobiv kormovykh za vykorystannia stymuliatoriv rostu [Laboratory germination of fodder bean seeds using growth stimulants]. «Veda a technologle: krok do budoucnosti – 2019». Materialy XIV Mezinarodni Vedecko-Prakticka Konference. Issue 8. 8–10. [in Czech Republic].

8.Shevchuk V. V. (2020). Vplyv stymuliuiuchykh preparativ na yakisni kharakterystyky nasinnia horokhu ozymoho sortu NS Moroz [Influence of stimulants on the qualitative characteristics of winter pea seeds of the winter variety of NS Moroz]. Perspectives of world science and education: Abstracts of VI International Scientific and Practical Conference. 913-922. [in Japan].

9.Shevchuk V. V., Didur I. M. (2019). Diia rehuliatoriv rostu roslyn na morfohenez prorostkiv i laboratornu skhozhist nasinnia horokhu ozymoho sortu NS Moroz [The effect of plant growth regulators on the morphogenesis of seedlings and laboratory germination of seeds of peas in winter variety of NS Moroz]. Visnyk Umanskoho natsionalnoho universytetu sadivnytstva – Bulletin of Uman National University of Horticulture. Issue 2. 54-59. [in Ukrainian].

10.Shevchuk V. V., Zolotashko L. O., Shy`shkova V. V., Kolibabchuk A. V. ta in. (2014). Посівні якості квасолі залежно від передпосівної обробки ретардантами. «Perspektywiczne opracowaniasa nauka I technikami – 2014». Materialy Х Miedzynarodowej naukowi-practycznej konferencji. 2014. Vol. 15. С. 54–56. [in Ukrainian].

11.Mykytyn M. Ya., Tarasiuk Ya. V., Bakhmat Yu. O. ta in. (2015). Vplyv rehuliatora rostu «Heteroauksyn» na nasinnievu produktyvnist roslyn kvasoli [Influence of growth regulator "Heteroauxin" on seed productivity of bean plants]. «Бъдущите изследования – 2015». Материали за ХІ Международна научна практична конференция. Issue 12. 55–57. [in Bulgaria].

12.Mykytyn M. Ya., Tarasiuk Ya. V., Bakhmat Yu. O. ta in. (2015). Efektyvnist zastosuvannia stymuliatora i fitohormonu novoho pokolinnia «Reastym» na roslynakh kvasoli [The effectiveness of the stimulant and phytohormone of the new generation "Reastim" on bean plants]. «Naukowa mysl informacyjnej pjwieki – 2015». Materialy ХІ Miedzynarodowej naukowi-practycznej konferencji. Issue 13. С. 25–27. [in Poland].

13.GOST 12038-84. Semena selskohozyaystvennyih kultur. Metodyi opredeleniya vshozhesti (s Izmeneniyami № 1, 2) [GOST 12038-84. Agricultural seeds. Methods for determining germination (with Changes No. 1, 2)]. URL: http://docs.cntd.ru/document/gost-12038-84 [in Russia]