Management of Root-Knot Nematodes and Corky Root Disease of Pepper Plants by Grafting Technique onto Resistant Rootstocks under Plastic House PDF

Keywords

Rootstocks, pepper, tomato, plastic houses, grafting, Corky root, root-knot nematode

Abstract

Using Beaufort rootstock (86.7 - 95.0%), and the lowest PSGs was by using Eldorado rootstock (68.3 - 80.0%), while it fluctuated between 79.2 and 82.1% when using the Snooker rootstock. The combinations efficacies of cultivars grafted onto Snooker rootstock to manage rootknot nematodes ranged from 95.8 to 100% under natural infection conditions under plastic house, meanwhile the same combinations were exhibited high level of resistance against corky root disease caused by the fungus Pyrenochaeta lycopersici. The increasing percentage of one plant yield from cultivars combinations grafted onto Snooker pepper rootstock fluctuated between 4.3 and 50.8%, whereas the length and vegetative part weight of cultivars grafted onto the same rootstock were negatively influenced in comparison with the same non-grafted cultivars. The pepper cultivars grafted onto tomato rootstocks were unable to grow under plastic houses conditions due to incompatibility phenomenon.