Research Article

Study on Trichoderma Citrinoviride 31/4 – Antagonistic Activity and Jasmonic Acid

Ariunjargal Jargalsaikhan
Institute of Plant Protection, Mongolia
Temuujin Janchiv
Institute of Plant Protection, Mongolia
Gantuya Myagmarsaikhan
Institute of Plant Protection, Mongolia
Esentaish Gantsolmon
Institute of Plant Protection, Mongolia
Otgonjargal Khureldagva
Institute of Plant Protection, Mongolia
* Corresponding author
DOI icon 10.24018/ejfood.2020.2.6.208

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Submitted 2020-12-17
Published 2020-12-31

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Table of Contents

Article Main Content

The genus Trichoderma was first identified by the German scientist Persoon in 1974, and there are currently 89 species in the genus. Trichoderma fungi often break down organic compounds in the soil into minerals and plays an important role in soil fertility formation.

Trichoderma citrinoviride 31/4 isolated from the soil forms a colony with light yellow-green mycelium on the surface of the PDA medium, with spherical spore, septate hyphae, branched conidophores.

Trichoderma citrinoviride 31/4 had antagonistic activity of 66.7% against Cladosporium fulvum, 77.5% against Alternaria alternata, and 59.1% against Fusarium oxysporium after 7 days.

Experimental results showed that the progress of tomato alternariosis treated with Trichoderma citrinoviride 31/4 was neutralized from the 7th day, and the biological activity was averagely 74% on the 21st day.

Trichoderma citrinoviride 31/4 contains 0.0135 mg / kg of jasmonic acid in plants treated with 109 cell / ml and 0.0076 mg/kg in plants treated with 108 cell / ml.

Keywords: fungi, Alternaria alternata, biological activity, tomato.

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