The use of epin-extra plant growth regulator for green cuttings of pear varieties in a greenhouse with artificial fog 

Ilona V. Zatsepina, Candidate of agricultural sciences, research associate, I.V. Michurin Federal Scientific Center, I.V. Michurin Breeding and Genetic Center (30 Michurina street, Michurinsk, Russia), E-mail: ilona.valerevna@mail.ru

Background. Plant growth regulator epin-extra is a good substance for various crops. Thanks to this preparation, plants take root easily and simply, you can grow healthy planting material, fruits are well tied on fruit trees and do not crumble. The purpose of our research is to use the plant growth regulator epin-extra to root green cuttings of pear varieties in a greenhouse with a film shelter. Materials and methods. In the course of the work, experimental studies were conducted to study the rootability of green cuttings on pear varieties – Yakovlev's Memory (k), August dew, Seedless, Hera, Irista, Beauty Chernenko, Skorospelka from Michurinsk, Extravaganza, February souvenir, Miracle worker, Allegro, Yakovlev's Fa vorite, Tenderness, Pervomayskaya, Svetlyanka. The pear varieties February souvenir, Yakovlev's Memory (k), Skorospelka from Michurinsk, Extravaganza, Allegro had the greatest rootability when using the plant growth stimulator epin-extra (1.0 mg/l) for 24 hours. Without the use of a plant growth stimulant, pear varieties February souvenir, Yakovlev's Memory (k), Skorospelka from Michurinsk, Extravaganza, Allegro possessed. Results and conclusions. The greatest height of growth, the diameter of the conditional root neck, the number of roots, the length of the roots when treated with the plant growth stimulant epin-extra (1.0 mg /l) for 24 hours and without the use of a plant growth stimulant were demonstrated by the pear varieties February souvenir, Yakovlev's Memory (k), Skorospelka from Michurinsk, Extravaganza, Allegro.

 plant growth regulator, pear varieties, greenhouse

Zatsepina I.V. The use of epin-extra plant growth regulator for green cuttings of pear varieties in a greenhouse with artificial fog. Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy region. Estestvennye nauki = University proceedings. Volga region. Natural sciences. 2024;(3):86–96. (In Russ.). doi: 10.21685/2307-9150-2024-3-8