Susceptibility of Bean Genotypes to Xanthomonas campestris pv. phaseoli in Greenhouse Conditions
Osetljivost genotipova pasulja na Xanthomonas campestris pv. phaseoli u zaštićenom prostoru
Pregled/ Otvaranje
Autor
Todorovic, Biljana
Milijasevic, Svetlana
Rekanovic, Emil
Potocnik, Ivana
Stepanovic, Milos
Ključne reči
Common blightX. campestris pv. phaseoli
Bean genotypes
Disease resistance
Obična plamenjača
X. campestris pv. phaseoli
genotipovi pasulja
otpornost
Metadata
Prikaz svih podataka o dokumentuApstrakt
Plants of 17 bean genotypes were evaluated under greenhouse conditions for their
reaction to X. campestris pv. phaseoli, the causal agent of common blight of beans, following
leaf-spray inoculation with bacterial suspension (108 cfu/ml). The plants were evaluated
based on the number of leaf lesions, and the disease severity index (DSI) was calculated.
The evaluated genotypes showed various levels of susceptibility to X. campestris pv. phaseoli
strain VS-1. The results of both experiments showed that the cultivar Oreol was the most
resistant. The genotypes: KB 142, HR-45, Tisa and Panonski tetovac also showed low susceptibility
with DSI values in the first trial ranging from 2.27 to 3.60. The same genotypes, with
the exception of Panonski tetovac, were also categorized as low-susceptible to the bacterium
in the second experiment, having the DSI values between 2.27 and 3.60. Most genotypes
(Slavonski žutozeleni, Zlatko, Biser, Sremac, Naya Nayahit) were categorized as susceptible
in the first experiment, including Panonski tetovac in the second one, while the genotypes
Dvadesetica, Prelom and Oplenac displayed the highest susceptibility in both trials. Ispitivana je reakcija 17 genotipova pasulja i boranije na X. campestris. pv. phaseoli, prouzrokovača
obične bakteriozne plamenjače pasulja u uslovima staklenika nakon inokulacije
biljaka prskanjem bakterijskom suspenzijom (108 ćel/ml). Reakcija biljaka ocenjivana je na
osnovu broja pega na lišću i izračunat je indeks oboljenja (IO). Proučavani genotipovi su ispoljili
različit nivo osetljivosti na soj bakterije VS-1. U oba ogleda najveću otpornost je ispoljila
sorta oreol. Slabo osetljivim genotipovima u prvom ogledu pripadali su genotipovi KB
142, HR-45, tisa i panonski tetovac sa IO 2,73-3,93. Isti genotipovi, osim panonskog tetovca, i
u drugom ogledu su svrstani u kategoriju slabo osetljivih (IO 2,27 do 3,60). Najveći broj genotipova
pripadao je kategoriji osetljivih (slavonski žutozeleni, zlatko, biser, sremac, Naya
Nayahit) u prvom ogledu, a u drugom, pored navedenih genotipova, spada i panonski tetovac.
Najveću osetljivost u oba ogleda ispoljile su sorte dvadesetica, prelom i oplenac.