Increased Growth of Plants in the Presence of the Biological Control Agent Trichoderma harzianum

Ya-Chun Chang; Yih-Chang Chang; Ralph Baker

doi:10.1094/PD-70-145

Increased Growth of Plants in the Presence of the Biological Control Agent Trichoderma harzianum

Journal

Plant Disease

Journal Volume

70

Journal Issue

2

Pages

145-148

Date Issued

1986-02

Author(s)

Ya-Chun Chang

Yih-Chang Chang

Ralph Baker

DOI

10.1094/PD-70-145

URI

https://scholars.tari.gov.tw/handle/123456789/20295

https://www.apsnet.org/publications/plantdisease/backissues/Documents/1986Abstracts/PD_70_145.htm

Abstract

The potential of Trichoderma harzianum to induce increased growth of various floricultural and horticultural crops was determined. In raw soil containing the fungus, pepper seed germinated 2 days earlier than untreated controls. Steamed or raw soil infested with T. harzianum hastened flowering of periwinkle, increased the number of blooms per plant on chrysanthemums, and increased the heights and weights of other plants. Responses occurred consistently at population densities of T. harzianum higher than 105 colony-forming units per gram of soil when the fungus was applied either in conidial suspensions or in a peat-bran mixture. Such population densities can be achieved economically by applying the agent to propagative beds, where rooted cuttings (e.g., chrysanthemum) may carry over adequate numbers of thallus units to ensure favorable growth responses after transplanting.

Publisher

American Phytopathological Society

Type

journal article