Bell pepper is very susceptible to Phytophthora capsici, therefore the use of rootstocks can be useful to reduce the incidence of root diseases and to increase and improve fruit quality and its chemical composition. The objective of the present study was to evaluate the effect of commercial rootstock “Terrano” on the quality and the accumulation of organic elements in the leaf, peduncle, and pulp of bell pepper (Capsicum annuum L.). The work was carried out in a mesh shade system in Delicias, Chihuahua, Mexico during the production cycle of 2012, with an experimental 2x2 factorial design in a randomized complete block design where the a) factor was the cultivar: Fascinato and Janette, while factor b) was the use of rootstock “Terrano” (grafted and ungrafted), giving four treatments: Fascinato/Terrano, Fascinato/ungrafted, Janette/Terrano, and Janette/ungrafted. The accumulation of organic elements: nitrogen (N), sulfur (S), hydrogen (H), carbon (C), proteins, as well as the quality of bell pepper (firmness, color, and weight) were evaluated. The results indicate that there were statistically significant differences due to the effect of the rootstock on the studied cultivars (Fascinato and Janette), where the rootstock “Terrano” increased the accumulation of organic elements: N, S, and protein in leaf and pulp of the cultivar Janette; in addition, the weight of the fruit increased. The use of commercial rootstock “Terrano” could be a viable technique to improve the accumulation of organic elements as well as the quality of bell pepper in cultivars Fascinato and Janette.

Keywords: Capsicum annuum L., rootstock, bell pepper, vegetable growing.