Siliplant in the cucumber protection system against powdery mildew

UDC 635.633:661.162.6
https://doi.org/10.25630/PAV.2020.64.36.005

Alexeeva К.L., Smetanina L.G.

https://doi.org/10.25630/PAV.2020.64.36.005 en

Powdery mildew is a dangerous disease of protected ground cucumber that causes significant crop losses, especially in conditions of epiphytotic development. The causative agent of powdery mildew is Oidium erysiphoides Fr. It is able to quickly form races that are resistant to the applied fungicides, so alternative means of protection are important, among which the most famous are preparations based on rapeseed oil (rapsol, rapsol-extra), mineral salts (potassium phosphite, potassium bicarbonate, calcium nitrate), preparations based on bioactive silicon. The article presents the results of testing the silicon-containing fertilizer Siliplant against cucumber powdery mildew in the conditions of film greenhouses in the Moscow region on a natural infectious background. Research was conducted on Vyaznikovsky hybrid cucumber. Plants were treated by spraying when the first symptoms of powdery mildew were seen and then it was done at intervals of 10 days. The scheme of the experiment included different consumption rates of Siliplant (0.8; 1.0; 1.2 l/ha) and Siliplant in combination with Farmayod (0.02%). Variant without treatment served as the control, the standard-treatment – spraying of Topaz fungicide (1 l/ha). It was found that at the rate of Siliplant consumption of 1.0–1.2 l/ha, the development of cucumber powdery mildew decreases by 65.3–68.1% compared to the control. The tank mixture of Siliplant and Farmayod (0.02%) increased the biological efficiency of treatments to 76.8%. Under the influence of treatments, there was an increase in cucumber yield by 8.5–17.0% compared to the control. The use of Siliplant in the norm of 1.0–1.2 l/ha increases the content of vitamin C and sugars in cucumber fruits by 19.6–22.5% and 41.7-53.0%, respectively. The results obtained allow us to conclude that Siliplant can be used as an element of a complex system for protecting cucumbers from powdery mildew. The most effective protection means from powdery mildew was provided by processing Siliplant on cucumber plants at a rate of 1.2 l/ha with the addition of farmayod (0.02%).

Key words: silicon-containing fertilizer Siliplant, cucumber, film greenhouses, powdery mildew, plant protection

Alexeeva K.L., Doctor Sci. (Agr.), chief research fellow, All-Russian Research Institute of Vegetable Growing – a branch of Federal Scientific Centre of Vegetable Growing (ARRIVG – a branch of FSBSI FSCVG). E-mail: vniioh@yandex.ru

Smetanina L.G., Cand. Sci. (Agr.), senior research fellow, ARRIVG – a branch of FSBSI FSCVG. E-mail: vniioh@yandex.ru

  1. State catalog of pesticides and agrochemicals permitted for use on the territory of the Russian Federation. Part 1. Moscow, 2020. 853 p. (In Russ.).
  2. Budynkov N.I. Effectiveness of Rapsol Extra against cucumber powdery mildew in greenhouses. Gavrish. 2014. №2. Pp. 24–27 (In Russ.).
  3. Juares M.G., Rosha J.F., Angulo T.P. Alternatives for the control of Oidium (Oidium sp.) in pepino (Cucumis sativus L.). Mexican journal of agricultural Sciences. 2012. Vol. 3. №2. Pp. 259–270 (In Spanish).
  4. Juares M.G. et al. Mineral salts and Oidium control (Oidium sp.) in cucumber. Mexican journal of agricultural Sciences. 2016. Vol. 7. №7. Pp. 1551–1561 (In Spanish).
  5. Dorais M., Theriault M. Beneficial effects of using silicon for organic greenhouse cucumber. Acta Horticulturae. 2018. Vol. 1227. Pp. 443–448.
  6. Polyfunctional silicon in the plant / I.G. Tarakanov, L.A. Panichkin, I.M. Konovalenko, E.D. Abrashkina. Potato and vegetables. 2019. №12. Pp. 14–16. http://doi.org/10.25630/PAV.2019.22.76.004 (In Russ.).
  7. Janishevskaja O.L., Dorozhkina L.A. Application of silicon-containing fertilizers and growth regulators EPIN-extra and Zircon for growing vegetables in protected soil // Greenhouses of Russia. 2007. №4. Pp. 38–41 (In Russ.).
  8. Dorozhkina L.A., Gabdrahmanov I.H., Hadeev T.G. Recommendations for the use of growth regulators in potato growing technology. Kazan', 2012. 48 p. (In Russ.).
  9. Litvinov S.S. Method of field experience in vegetable growing. Moscow, 2011. 679 p. (In Russ.).
  10. Guidelines for registration tests of fungicides in agriculture / Ed. by V.I. Dolzhenko. Saint Petersburg: ARRIP, 2009. 378 p. (In Russ.).

PDF(Rus)

For citing: Alexeeva К.L., Smetanina L.G. Siliplant in the cucumber protection system against powdery mildew // Potato and vegetables. 2020. No5. Pp. 25-27. https://doi.org/10.25630/PAV.2020.64.36.005 (In Russ.).

 

This entry was posted in Vegetable growing and tagged , , , , . Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *