The role of grafting technique to improve tomato growth and production under infestation by the branched broomrape
Full Length Research Paper
Faculty of Agriculture, Idleb University, Syria
Research work carried out at Laboratoire de Biologie et Pathologie Végétales (LBPV), Nantes, France.
Accepted 30 June, 2017
Durinta and Petula broomrape-susceptible tomato varieties were grafted onto broomrape-tolerant rootstock (Eldorado) and broomrape-susceptible rootstocks (Maxifort and Integro) and grown under conditions of infestation by branched broomrape in greenhouses of Laboratory of Vegetable Biology and Pathology. Four months after the culture, vegetative and productive parameters were measured on each cultivated tomato plant. Thus, for tomato plants, the total number of leaves, floral bouquets, fruit bunches and fruits were determined. Moreover, the fresh and dry weight of the fruits and the vegetative parts were measured. For branched broomrape plants, the total number of attachments and emergences and the total fresh and dry weight per tomato plant were defined. The results show that the sensitivity of grafted plant to branched broomrape is conditioned by that of the rootstock. In addition, the grafting induced a deceleration of the development of the fixed broomrapes. Moreover, the Eldorado rootstock increases the production of fruits of the two varieties Durinta and Petula under infestation by the broomrape. Finally, the grafting improves the degree of tolerance of the variety to the broomrape. Grafting is therefore an important technique for tomato production under conditions of infestation by the broomrape when the rootstock is resistant or at least tolerant.
Keywords: Grafted Tomato, Infestation, Tolerance, Sensitivity, Branched Broomrape.