Onyschenko O. I., Chaiuk O. O., Morgun O. V.
Pages: 28-33.

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Abstract

The purpose. To justify an opportunity of application of adjusters of growth of plants (AGP) on the basis of humic acids, biologically active substances and complex microfertilizer KompleMet against diseases of plants of a cucumber. Methods. Laboratory — study of effect of AGP on development of the causal organism of root rots secreted from plants of cucumber — fungus Fusarium solani App. et Wr. in crop in vitro (according to V.I. Bilay, 1982). Field experiments on determination of efficiency of AGP were led according to S.A. Tribel’s technique (2001). Results. It is established that fungus Fusarium solani App. et Wr. is the most susceptible to AGP on the basis of biologically active substances: Epin extra, salicylic and amber acids. Their inhibiting effect on the 3rd day had made 36,7; 56,7, and 33,3% accordingly. Integrated data of field probes confirmed that the highest efficiency against root rots had the alternative with application of microfertilizer KompleMet (K1+M1) — 60%. Efficiency of AGP on the basis of biologically active substances was below and made 55–52%. Efficiency of humic specimen Vympel Maxi was at the same level — 56%. Treatment of plants with AGP promoted lowering of the level of strikeness of plants of a cucumber with false mildew. Due to activation of growth processes at plants and presence of antifungal activity against causal organisms of diseases introduction in technique of growing of plants of cucumber of AGP made active reward payment of the crop. The increase of productivity had made 1,06–2,50 kg/m2. Conclusions. AGP on the basis of biologically active substances (Epin extra, salicylic and amber acids) essentially suppress growth of fungus Fusarium solani App. et Wr. in crop in vitro. AGP on the basis of humic substances and complex microfertilizer KompleMet (K1+M1) did not manifest stopping power activity. So, to increase efficiency it is necessary to search an opportunity of specimens to promote activation of nonspecific protective responses in plants. In sowings of a cucumber in film hothouses it is expedient in order to lower intensity of root rots to apply complex microfertilizer KompleMet (K1+K2) in dose of 1 l/hectare or one of AGP: on the basis of biologically active substances — salicylic acid (0,1 kg/hectare) or Epin extra (0,08 l/hectares); on the basis of humic substances — Vympel Maxi (1 l/hectare). Application of AGP in technique of growing of a cucumber ensures increase of productivity on 1,06-2,50 kg/m2.

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Key words: film hothouses, diseases of a cucumber, adjusters of growth of plants, efficiency.

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References

1. O’Brien, R.G. (1993). Fungicide resistance in populations of cucurbit powdery mildew (Sphaerotheca fuliginea). New Zealand Journal of Crop and Horticultural Science, 22, 145-149.
2. Hoda M. Soliman, Mohamed A. El-Metwally, Maged Taher Elkahky and Wael E. Badawi (2015). Alternatives to Chemical Control of Grey Mold Disease on Cucumber Caused by Botrytis cinerea Pers. Asian Journal of Plant Pathology, 9, 1-15. DOI:10.3923/ajppaj.2015.1.15
3. Kaur P., D. Mal, A. Sheokand, Shweta, L. Singh and Datta S. (2018). Role of Plant Growth Regulators in Vegetable Production: A Review. Int. J. Curr. Microbiol. App. Sci., 7 (06), 2177-2183. doi: https://doi.org/10.20546/ijcmas.2018.706.258
4. Heydari, A., Pessarakli, M. (2010). A Review on Biological Control of Fungal Plant Pathogens Using Microbial Antagonists. Journal of Biological Sciences, 10, 273-290. DOI: 10.3923/jbs.2010.273.290
5. Loginov, O.N., Silishchev, N.N. (2011). Effektivnost biopreparatov v tselyakh povysheniya urozhaynosti tomata i ogurtsa zashchishchennogo grunta i zashchity ikh ot bolezney [Effectiveness of biological products in order to increase the yield of tomato and cucumber protected soil and protect them from disease]. Agro XXI, 10-12, 33–34. [in Russ.].
6. Rudakov, V.O., Butov, E.V. (2012). Biopreparaty v sisteme zashchity ovoshchnykh kultur [Biological products in the system of protection of vegetable crops]. Bulletin of the vegetable grower, 3, 18–21. [in Russ.].
7. Dalai, S., Singh, M. K., Singh, K. V., Kumar,M., Malik, S., and Kumar, V. (2015). Effect of Foliar Application of GA3 and NAA on Growth, Flower-Ing Yield and Yield Attributes of Cucumber [Cucumis sativus L.]. Annals of Horticulture, 8(2), 181-194.
8. Al-Masri, M. I., et al. (2002). Effect of Plant Growth Regulators on White Mould (Sclerotinia sclerotiorum) on Bean and Cucumber. J. Phytopathology, 150, 481–487.
9. Prasad, R. N., Singh, S. K., Yadava, R. B., and Chaurasia, S. N. S. (2013). Effect of GA3 and NAA on growth and yield of tomato. Vegetable Science, 40(2), 195-197.
10. Vakulenko, V.V. (2004). Regulyatory rosta [Growth regulators]. Plant protection, 1, 24-26. [in Russ.].
11. Romanova, E.V., Maslov M.I. (2006). Regulyatory rosta i razvitiya rasteniy s fungitsidnymi svoystvami [Regulators of growth and development of plants with fungicidal properties]. Plant protection and quarantine, 6, 26-27. [in Russ.].
12. Perelik pestytsydiv i ahrokhimikativ, dozvolenykh do vykorystannia v Ukraini (2016) [List of pesticides and agrochemicals authorized for use in Ukraine]. Kyiv: Yunivest media. [in Ukr.].
13. Bilay, V.I. (Ed.) (1982). Metody eksperementalnoy mikologii [Methods of experimental mycology]. Kyiv: Naukova Dumka. [in Russ.].
14. Trybelia, S.O. (Ed.) Metodyka vyprobuvannia i zastosuvannia pestytsydiv (2001). [Methods of testing and application of pesticides]. Kyiv: Svit. [in Ukr.].
15. Bondarenko, H.L. (Ed.) Metodyka doslidnoi spravy v ovochivnytstvi i bashtannytstvi. Kharkiv: Osnova, 2001. [in Ukr.].
16. Pidoplichko, N.M. (1977). Griby–parazity kulturnykh rasteniy. Opredelitel. [Mushrooms are parasites of cultivated plants. Determinant]. T.2. Kyiv: Naukova dumka. [in Russ.].