Alleviation of Postharvest Skin Dimpling of MN55 Apple Fruit and a Possible Association with Apple stem pitting virus

MN55 is an apple ( Malus × domestica Borkh.) cultivar recently released by the University of Minnesota breeding program, with fruit marketed in U.S. as Rave ® . When stored for 4 months at 0 to °C, can develop several storage disorders, including skin dimpling. Skin dimpling incidence was greater harvested 1 week later than those earlier. Dimpling not alleviated prestorage treatments 1-methylcyclopropene or diphenylamine holding room temperature day before long-term cold storage. However, very low when were 6 7 °C. Because viruses have been implicated other presence leaves and studied. Apple stem pitting virus (ASPV) detected microscopy, reverse transcriptase polymerase chain reaction (RT-PCR) methodology, high throughput sequencing (HTS) peel from trees that exhibited after ASPV also supermarket-purchased cultivars noticeable Although conclusively demonstrated cause our work, its prevalence indicates further investigations are warranted determine relationship between deformities apples.