Variation in Tomato Varieties Response to Egyptian Broomrape (Orobanche aegyptiaca) Infection

In this study، the susceptibility of twenty-nine tomato varieties to broomrape infection under glasshouse conditions was investigated. Results showed that Differences in susceptibility to infection were significant among tomato varieties. Significant differences were in number and time of broomrape shoots emerging، broomrape dry weigh (shoots and tubercles) and growth and fruit yield of tomato. Moderate levels of resistance were obtained in Viva، Caligen 86، Hyb. PS 6515، Hyb. Firenze (PS 8094) and Cal-jN3 among other tomato varieties. In contrast، varieties of Kimia-Falat، Hyb. Petopride II and Hyb. AP865 were the most susceptible hosts to Orobanche aegyptiaca.