Results 21 to 30 of about 5,117,500 (142)

Plant diseases - Apple mosaic - A virus disease

open access: yes, 1957
Last season apple growers were very conscious of a disease in their trees which was more conspicuous than usual. In fact, some orchardists say they became aware of it for the first time last season.
Harvey, H. L.
core   +3 more sources

Characteristics of rose mosaic diseases

open access: yesActa Agrobotanica, 2013
Presented review of rose diseases, associated with the mosaic symptoms, includes common and yellow rose mosaic, rose ring pattern, rose X disease, rose line pattern, yellow vein mosaic and rose mottle mosaic disease.
Marek S. Szyndel
doaj   +1 more source

Viral Infection Control in the Essential Oil-Bearing Rose Nursery: Collection Maintenance and Monitoring

open access: yesHorticulturae, 2022
Viral diseases affecting the essential oil rose, which is a valuable object of agricultural production, may have a significant negative impact on the economic value of this crop.
Sevilia Seitadzhieva   +7 more
doaj   +1 more source

Apple stem grooving virus is associated with leaf yellow mottle mosaic disease on Citrus grandis cv. Huangjinmiyou in China

open access: yesJournal of Integrative Agriculture, 2022
Although it is usually latent on citrus, apple, and pear, apple stem grooving virus (ASGV) poses a great risk to many sensitive cultivars. Since severe leaf yellow mottle mosaic (LYMM) symptoms have been observed on Huangjinmiyou (HJY) pummelos (Citrus ...
Zhi-you XUAN   +9 more
doaj   +1 more source

Selection and orchard testing of antagonists suppressing conidia production of the apple scab pathogen Venturia inaequalis [PDF]

open access: yes, 2009
Apple scab caused by Venturia inaequalis is a major disease in apple production. Epidemics in spring are initiated by ascospores produced on overwintering leaves whereas epidemics during summer are driven by conidia produced on apple leaves by biotrophic
Molhoek, W.M.L.   +3 more
core   +1 more source

Real-Time Detection of Apple Leaf Diseases Using Deep Learning Approach Based on Improved Convolutional Neural Networks

open access: yesIEEE Access, 2019
Alternaria leaf spot, Brown spot, Mosaic, Grey spot, and Rust are five common types of apple leaf diseases that severely affect apple yield. However, the existing research lacks an accurate and fast detector of apple diseases for ensuring the healthy ...
Peng Jiang   +4 more
doaj   +1 more source

Overexpression of the Apple MpNPR1 Gene Confers Increased Disease Resistance in Malus × domestica

open access: yesMolecular Plant-Microbe Interactions, 2007
The NPR1 gene plays a pivotal role in systemic acquired resistance in plants. Its overexpression in Arabidopsis and rice results in increased disease resistance and elevated expression of pathogenesis-related (PR) genes.
M. Malnoy   +4 more
doaj   +1 more source

Relationship of viruses and viroids with apricot “viruela” disease

open access: yesPhytopathologia Mediterranea, 2013
In this study, 34 apricot orchards in south-eastern Spain planted with the Spanish cultivar ‘Búlida’ and showing “viruela” symptoms were studied for 2 years.
Manuel RUBIO   +4 more
doaj   +1 more source

High-Throughput Sequencing Identified Multiple Fig Viruses and Viroids Associated with Fig Mosaic Disease in Iraq [PDF]

open access: yesThe Plant Pathology Journal
Mosaic is the most common viral disease affecting fig plants. Although the Fig mosaic virus is the leading cause of mosaic disease, other viruses are also involved. High-throughput sequencing was used to assess viral infections in fig plants with mosaic.
Nabeel Al-Kaeath   +4 more
doaj   +1 more source

Genetic basis for resistance against fruit tree canker in apple [PDF]

open access: yes, 2012
Neonectria ditissima (formerly Neonectria galligena, anamorph Cylindrocarpon heteronema) is the causal agent of fruit tree canker which is regarded as a serious economic problem in horticulture.
Ghasemkhani, Marjan
core   +1 more source

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