ABSTRACT
The Verticillium wilt of cotton (Gossypium spp.) always remained a serious problem in the cultivation of this crop. According to contemporary scientific thinking, the plant cell, like the animal cell, possesses an immunological control system, the function of which involves not only to defend against pathogenic microorganisms, but also to support the structural and functional integrity of the body. Disease resistance is significant in this context, for it is the result of interaction between the host plant genotype, the pathogen, and the surrounding environmental factors.
