“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi
Abstract
Sunflower broomrape (Orobanche cumana Wallr.) is a parasitic plant which has a significant negative impact on seed
yield. The parasite is spread in large areas of Europe, Asia and it has identified recently, in North Africa. Breeding for
resistance is regarded as the most effective, feasible and environmentally friendly solution to control sunflower
broomrape. However, breeding for resistance is challenging as new races of the parasite have evolved. The use of
resistant hybrids of monogenic resistance type, is followed by the appearance of new more virulent races that overcome
the existing resistance genes. So, it is necessary to develop sunflower hybrids which can accumulate qualitative and
quantitative resistance in a single one, in order to have a durable resistance. Among this, by developing Clearfield
Production System in sunflower it could have an important control strategy and complemented the genetic resistance
against the parasite