ارزيابي مقاومت تعدادي ژنوتيپ و رقم بادام به Verticillium dahliae

Evaluation of resistance of some genotypes and cultivars of almond to Verticillium dahliae

Reaction of almond seed lings [0 Yerticillium dahlia e to one-year-old plants of 24 genotypes of Prunus dulcis and two genotype of Amygdalu s orientalis and Amygdalus scoparia from Chahar Mahal va Bakhtiari province were investigated under greenhouse condi tions. Seventeen-month after inoculation plants were removed from the pots and certain characters such as plant height reduction, rate of plant mortality, disease severi ty inde x, plant weight redu ction, browning inde x and stem colonization were recorded. The results indicated that on the basi s of the se characters genotypes of almond were divided in to three groups; tolerant, susce ptible and very susceptible. S hahrood 13, Shahroodl2, Sangi Shorab, Sangi Overgan, Talkheh Emamea, Talkheh Joneghan, Sangi Gahroo and Ta!kheh Sadeghabad were tolerant genotypes. Genotypes of Marnaee Ernamea, Azar, Talkheh Ardal, Talkheh Horeh, Sangi Emamea, Sefid, Rabi, Shahrood l S, Shahrood 17, Amygdalus orientalis and Amygdalus scoparia were very susceptible. Other genotypes such as Marnaee, Sangi Joneghan, Talkheh Gahroo, Sangi Ahmadabad, Non-pareil , Shahrood21 and Sangi Karimabad were s usceptible.