Results 81 to 90 of about 13,979 (224)

Estimating sharka dispersal function by stochastic spatiotemporal modelling [PDF]

open access: yes, 2013
Plant viral diseases, and especially the ones transmitted by aerial vectors, can cause considerable yield losses. A good knowledge of the distances of spread is key to the understanding of disease dynamics. Exploratory approaches aiming at characterizing
Bonnot, François   +5 more
core  

Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Uganda

open access: yesEFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the likelihood of pest freedom at entry in the EU, including both regulated and non‐regulated pests, potentially associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Uganda.
EFSA Panel on Plant Health (PLH)   +34 more
wiley   +1 more source

Identification of the yam mild mosaic virus (YMMV) in Colombian samples of Dioscorea alata. -Biological, serological and molecular approaches-

open access: yesRevista Colombiana de Biotecnología, 2011
The yam mosaic virus (YMV) and the yam mild mosaic virus (YMMV) are pathogens affecting the yam (Dioscorea sp.). This work presents the results of a serological and molecular study for the diagnosis of potyvirus in field samples and micro cultures ...
Mónica Guzmán   +2 more
doaj   +2 more sources

Molecular Characteristics and Biological Properties of Bean Yellow Mosaic Virus Isolates from Slovakia

open access: yesHorticulturae
Analysis of the viromes of three symptomatic Fabaceae plants, i.e., red clover (Trifolium pratense L.), pea (Pisum sativum L.), and common bean (Phaseolus vulgaris L.), using high-throughput sequencing revealed complex infections and enabled the ...
Michaela Mrkvová   +7 more
doaj   +1 more source

Exogenous Application of RNAi-Inducing Double-Stranded RNA Inhibits Aphid-Mediated Transmission of a Plant Virus

open access: yesFrontiers in Plant Science, 2019
Plant viruses are difficult to control, and they decrease both the quality and yield of crops, thus threatening global food security. A new approach that uses topical application of double-stranded RNA (dsRNA) to induce antiviral RNA-interference has ...
Elizabeth A. Worrall   +6 more
doaj   +1 more source

Combining experimental assays with epidemiological surveys to assess indicators of Plum pox virus epidemicity [PDF]

open access: yes, 2013
The huge increase in sequence data those last decades has allowed defining better demarcation criteria for viral taxonomic assignments. For the epidemiologists, such demarcation based on molecular properties, especially at the strain level, is ...
Bonnot, François   +6 more
core  

Yield of varieties of Cucurbita pepo preimmunized with mild strains of Papaya ringspot virus - type W and Zucchini yellow mosaic virus Produção de variedades de Cucurbita pepo premunizadas com estirpes fracas do Papaya ringspot virus - type W e do Zucchini yellow mosaic virus

open access: yesScientia Agricola, 2009
Papaya ringspot virus - type W (PRSV-W) and Zucchini yellow mosaic virus (ZYMV) are the most prevalent viruses in cucurbit crops in Brazil and responsible for frequent yield losses. Diseases caused by these viruses are difficult to control. The objective
Estela Bonilha   +5 more
doaj   +1 more source

Uji Kisaran Inang Potyvirus Penyebab Mosaik Nilam (Pogostemon Cablin (Blanco) Benth) Asal Sulawesi Tenggara [PDF]

open access: yes, 2014
The objective of the research was to determine the host alternate of Potyvirus in Southeast Sulawesi using a host range technique. Observed variables were incubation period, disease incidence, and variation symptom. The research results showed that virus
HASAN, A. (ASMAR)   +3 more
core  

Deteksi Potyvirus Pada Nilam (Pogostemon Cablin (Blanco) Benth) Dengan Teknik Elisa Di Sulawesi Tenggara [PDF]

open access: yes, 2014
Mosaic symptoms were observed on Patchouli (Pogostemon cablin) around North Kolaka and Kolaka, Southeast Sulawesi during surveys in early 2012. Indirect-ELISA based detection was conducted using symptomatic leaf samples. The objective of the research was
-, G. H. (GUSNAWATY)   +4 more
core  

Contribution à l'étude de la mosaïque de la canne à sucre : variabilité du pouvoir pathogène du Sugarcane mosaic virus originaire du Cameroun et du Congo, caractérisation d'isolats viraux d'Asie [PDF]

open access: yes, 2001
Le pouvoir pathogène de six isolats du sugarcane mosaic virus (SCMV), originaires du Cameroun et du Congo, a été caractérisé à l'aide de deux variétés de canne à sucre (Saccharum spp.): B8008 et R570.
Mazarin, Candy
core  

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