Tob. Sci., 1970, 14-46, p. 161-163, ISSN.0082-4623
Pectic substances in healthy and black root rot diseased tobacco roots
Department of Plant Pathology and Physiology, Virginia Polytechnic Institute and State University USA
Extractable pectic substances in healthy and Thielaviopsis basicola (Berk. & Br.) Ferraris-infested roots of Vest 5 tobacco (Nicotiana Tabacum L.), highly susceptible to black root rot, were determined. Nearly 30% less pectic substances were...