Author(s): M.J.I. Abussaud and F.A. Almomani
Article publication date: 1988-04-01
Vol. 6 No. 1 (yearly), pp. 91-102.
129
Keywords
Jordan, agrobacterium, grapevine
Abstract
Jordanian isolates of Agrobacterium were separated into three biotypes on the basis of physiological and biochemical characteristics. Of 203 Agrobacterium isolates 52 proved to be pathogenic. 29 were isolated from gravines, 12 from soil and 6, 3, 2 from apples, peach and pear, respectively. None of the grapevine isolates was included in biotype 2. With 22 isolates biotype 1 was more common than the others. Tomato seedlings seem to be not a suitable host for testing the pathogenicity of grapevine isolates in Jordan. Peach isolates formed the largest gall on tomato, tobacco and kalanchoe.