Latent viruses in apple varieties in Oregon nurseries
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Latent viruses in apple varieties in Oregon nurseries

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Published .
Written in English


  • Nurseries (Horticulture),
  • Apples -- Diseases and pests.

Book details:

Edition Notes

Statementby Gerald George Dimalla.
The Physical Object
Pagination35 leaves, bound :
Number of Pages35
ID Numbers
Open LibraryOL17641247M

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Buy The New Book of Apples: The Definitive Guide to Over Varieties Rev Ed by Morgan, Joan (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders/5(33). Viruses can also cause dieback, bark symptoms, gumming, stock-scion incompatibilities and tree death. Some viruses produce distinctive symptoms, while others are much harder to detect visually. Viruses may produce visible symptoms in some varieties, but remain latent in others. Cherry mottle leaf virus on ‘Lapins’ Apple mosaic virus. Apple (Malus spp.)-Flat Apple Disease. Apple (Malus spp.)-Latent Virus Diseases. Apple (Malus spp.)-Union Necrosis and Decline. Cause Many apple trees in the Pacific Northwest are carrying one or more latent viruses. Most infections by the "latent viruses" do not cause disease symptoms or reduce tree growth or yield on commercial cultivars.   The causal agent of apple mosaic disease has been previously thought to be solely caused by apple mosaic virus (ApMV). In this study, we report that a novel ilarvirus is also associated with apple mosaic disease. Next-generation sequencing analysis of an apple tree showing mosaic symptoms revealed that the tree was infected with three apple latent viruses Cited by: 6.

Scab-Immune Varieties. Below is a list of our scab-immune apple variety offerings. These varieties were bred to be completely immune to apple scab infection and are in some cases more resistant to other common apple diseases including powdery mildew, cedar apple rust . Apple latent spherical virus (ALSV) vectors were evaluated for virus-induced gene silencing (VIGS) of endogenous genes among a broad range of plant species. ALSV vectors carrying partial sequences of a subunit of magnesium chelatase (SU) and phytoene desaturase (PDS) genes induced highly uniform knockout phenotypes typical of SU and PDS inhibition on model Cited by:   We used reverse transcription quantitative PCR (RT-qPCR) to test for apple latent spherical virus (ALSV) in cotyledons of seeds and true leaves of seedlings from apple trees infected with ALSV to accurately determine the status of infection in seedlings from ALSV-infected trees. The amplification curves of ALSV-RNAs from cotyledons were classified into three Cited by: After describing microcompetition in his book, Dr. Polansky describes how microcompetition with latent viruses can cause diseases such as cancer, heart disease, diabetes, obesity, and others. Dr. Polansky also explains how many observations reported in thousands of published scientific studies are consistent with the predicted effects of.

Latent apple viruses. are transmitted only via propagation or by root grafting from adjacent trees. Root grafting is more common in stone fruits than in apples, but a recent report indicated that root grafting is also quite common in apples. The common latent viruses are stem pitting, stem grooving, apple chlorotic leaf spot, and apple Size: 34KB. Disease-resistant apple varieties One of the reasons I'm excited to experiment with a high density apple planting is because it will allow me to try out more varieties. When grafted onto standard or semistandard rootstocks, apples require a lot of space, and I . Apple Production Technology. M. K. Verma, Principal Scientist Resistant to latent viruses: OH series, B-9, MAC-9, C-6, Novole. are wide range of varieties available require low to high Author: M. K. Verma. - Warm Climate Apple Variety List. Part of our mission at Kuffel Creek Apple Nursery is to test apple varieties in our warm climate where citrus is the traditional crop. We have found this to be absolutely necessary as even though growers in other areas have given us their recommendations, nothing can replace actual testing.