Work

Efficacy of Some Plant Extracts against Root Rot Disease of Green Oak Lettuce (Lactuca sativa var. Crispa) Caused by Pythium sp. Grown in a Hydroponic System

Year: 2023

Type: article

Abstract: An antifungal activity of the twelve plant extracts were tested against Pythium sp., the causal agents of root rot diseases grown in hydroponic systems. The crude extracts of Acorus calamus and Syzygium aromaticum completely inhibited the mycelial growth of Pythium sp. in the in vitro condition at 5,000 ppm, whilst Curcuma zedoaria and other plant extracts had show lesser inhibitory activity. Out of these twelve plant extracts selecting A. calamus, S. aromaticum and C. zedoaria for further in vivo test in nursery raising seedling in plastic tray of hydroponic system by inoculating Pythium sp. mycelial developed on agar medium, A. calamus rhizome extract exhibited highest inhibitory effect against % root tip colonized by Pythium sp. of 5.85 to 48 followed by S. aromaticum floral bud 9.97 to 60 and rhizome of C. zedoaria extract 28.32 to 90 at 2000 ppm on seven and twenty one days after inoculation respectively. The concentrations and application methods of these extracts should be further investigated to control the root rot disease of lettucein the hydroponic system.

Source: Journal of Agriculture and Environment

DOI: 10.3126/aej.v24i01.58204

Authors: Lakshya Bahadur Chaudhary, Pimjai Meetum, Mana Kanjanamaneesathian, Roshan Adhikari, Rachsawan Mongkol

Institutions: Government of Nepal, Silpakorn University

Language: English

Topic: Fungal Plant Pathogen Control

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: bronze

Funder: Silpakorn University