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dc.contributorAbbes, Zouhaieren_US
dc.contributorBen Saleh, Hamadien_US
dc.contributorBouhadida, mariemen_US
dc.contributorTrabelsi, Imenen_US
dc.contributorKharrat, Mohameden_US
dc.creatorAmri, Moezen_US
dc.identifier.citationMoez Amri, Zouhaier Abbes, Hamadi Ben Saleh, mariem Bouhadida, Imen Trabelsi, Mohamed Kharrat. (1/10/2013). The problem of Orobanche in Tunisia: current state, specificity and main results of the national Faba bean breeding program to improve tolerance/resistance to Orobanche foetida and Orobanche crenata. Amman, Jordan.en_US
dc.description.abstractIn Tunisia legume crops suffer from several problems mainly broomrape attacks (Orobanche spp. and Phelipanche spp.) causing severe damages and important yield losses mainly on faba bean. Among the several species reported in Tunisia only Orobanche crenata and Orobanche foetida were found frequently parasitizing some grain legume crops. Actually, O. foetida is considered as the most important agricultural problem of faba bean production in the North West regions of Tunisia, causing yield losses of 70 - 95%. In Tunisia, this parasite was reported parasitizing Faba bean (Vicia faba), Chickpea (Cicer arietinum), Vetch (Vicia sativa), Narbon vetch (Vicia narbonensis), Medics (Medicago truncatula, Medicago scutulata), Grass pea (Lathyrus sativus), Lentil (Lens culinaris), Fenugreek (Trigonella foenum graecum) and many other crop and wild species. Recent studies revealed a genetic variability between Tunisian, Moroccan and Spanish O. foetida populations and showed that the Tunisian ecotype seems to be more pathogenic, virulent and aggressive. In order to limit the devastating effects of these parasitic plants, several strategies have been used for controlling broomrapes including chemical, cultural and biological methods but without full satisfaction. An integrated control method based essentially on the genetic tolerance/resistance seems to be the best way to control broomrapes. In Tunisia, within the food legume breeding program at the  eld crop laboratory, research activities on Orobanche were intensi ed since the 1990s mainly on faba bean. The main missions of this program were (i) to select high yielding faba bean genotypes locally adapted to Tunisian grown areas and tolerant/resistant to both O. foetida and O. crenata and (ii) to explore the different mechanisms of tolerance/resistance and control strategies in order to limit the devastating effect of these parasitic plants. As result of this program many tolerant/resistant genotypes were selected from speci c ICARDA trials (FBION) and mainly from crosses done in Tunisia. Recently, one small seeded faba bean variety “Najeh” were registered in 2009 in the Tunisian catalogue of plant varieties. In 2012, the program had submitted another small seed faba bean variety “Chourouk” shown better tolerance than “Najeh”.en_US
dc.publisherInternational Center for Agricultural Research in the Dry Areas (ICARDA)en_US
dc.subjectimproving resistanceen_US
dc.subjectimproving toleranceen_US
dc.subjectorobanche foetidaen_US
dc.titleThe problem of Orobanche in Tunisia: current state, specificity and main results of the national Faba bean breeding program to improve tolerance/resistance to Orobanche foetida and Orobanche crenataen_US
dc.typeConference Paperen_US
cg.creator.idAmri, Moez: 0000-0002-4707-0618en_US
cg.subject.agrovocorobanche crenataen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerUniversity of Carthage - UCAR Tunisen_US
cg.contributor.centerNational Agricultural Research Institute of Tunisia - INRATen_US
cg.contributor.crpCGIAR Research Program on Dryland Systems - DSen_US
cg.contributor.crpCGIAR Research Program on Grain Legumes - GLen_US
cg.contributor.crpCGIAR Research Program on Wheat - WHEATen_US
cg.contributor.funderInternational Fund for Agricultural Development - IFADen_US
cg.contributor.projectEnhanced small-holder wheat-legume cropping systems to improve food security under changing climate in the drylands of West Asia and North Africaen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
dc.identifier.statusOpen accessen_US

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