Koulali Fatiha1, Hassani Abdelkrim1, Bekki Abdelkader2 1Laboratory of Agrobiotechnology and Nutrition in dry areas, IbnKhaldoun University, Tiaret, Algeria 2Biotechnology Laboratory of Rhizobia and Plant Breeding, Faculty of Sciences, Oran University, Es Senia, Algeria (Manuscript rec

H. Stoyanov Abstract. Wide hybridization as a tool of classical breeding is a method which is successfully applied in the development of breeding programs in cultural plants. Its application is a particularly effective means to overcome the effects of biotic and abiotic stress in cult

I. Nikolova, N. Georgieva Abstract. During the period 2006-2009 in the experimental field of IFC-Pleven a field trial was conducted with 8 alfalfa varieties included in the Official variety list of Bulgaria (2005): Europe (France), Prista 2 (Obraztsov chiflik, Ruse), Prista 3 (Obrazts

During the 2007-2009 period in IFC, Pleven (Bulgaria) a field trial was carried out with the purpose of studying the tolerance of 8 lucerne varieties to attack by Apion seniculus Kirby. It was found that the attack of weevil was the strongest at primary growth. The damaged plants vari