Introducing some Potato leafroll virus resistant potato genotypes and cultivars
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Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Potato leaf roll disease is one of the most important and widely distributed viral diseases of potato. Like other plant viruses, the use of resistant cultivars is the most effective control measure of this disease. In this study, the reactions of some potato cultivars and genotypes to Potato leafroll virus (PLRV) were evaluated in a field trial experiment. The experiment conducted as a randomized complete block design with 12 treatments and three replications. Each plot of the experimental design included a planting row of five potato plants of each cultivar/genotype. The experimental plants were then inoculated with the virus by putting 10 PLRV-carrying green peach aphids on each plant. One month after inoculation, the plants were examined for PLRV infection by observing symptoms development and using enzyme-linked immunosorbent assay (ELISA) test. The results revealed significant differences between the PLRV-infection rates of the potato cultivars/genotypes tested. The potato genotype 803970/13 (having no infected plant) was evaluated as highly resistant to PLRV. The cultivar “Sante” was resistant, the cultivar “Lady Rosetta” and the genotype “397015/31” were moderately resistant, cultivar “Diamant” was moderately susceptible and the rest of genotypes or cultivars were found susceptible or highly susceptible. The results also proved a significant correlation (79%) between the infection rates of the test plants based on symptom development and those of the ELISA tests.
Language:
Persian
Published:
Applied Entomology and Phytopathology, Volume:86 Issue: 2, 2019
Pages:
163 to 169
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