Improved rhizosphere competence of Trichoderma harzianum by protoplast fusion

Abstract

The improved rhizosphere competence of the protoplast fusion progeny 1295-22 obtained by fusion protoplasts of T. harzianum strains T95 (benomyl tolerant) and T12 was tested and quantified by treating cotton and maize seeds. T95 colonized the upper and lower parts of the roots, T12 was mainly found in the upper third but 1295-22 colonized the entire root. This paper was presented at a symposium held at the Beltsville Agricultural Research Center (BARC), Beltsville, MD, USA, on 8-11 May, 1989.