Results 71 to 80 of about 4,285 (191)

Deteccao de doencas na cultura do pimentao no submedio do Vale Sao Francisco-1998 a 2000. [PDF]

open access: yes, 2019
A deteccao de doencas em 172 amostras de pimentao, provenientes de areas do Submedio do Vale do Sao Francisco, foi realizada no Laboratorio de Fitopatologia da Embrapa Semi-Arido, Petrolina, PE, no periodo de 1998 a 2000.
COSTA, N. D., LIMA, M. F.
core  

The nucleotide‐binding domain of NRC‐dependent disease resistance proteins is sufficient to activate downstream helper NLR oligomerization and immune signaling

open access: yesNew Phytologist, Volume 243, Issue 1, Page 345-361, July 2024.
Summary Nucleotide‐binding domain and leucine‐rich repeat (NLR) proteins with pathogen sensor activities have evolved to initiate immune signaling by activating helper NLRs. However, the mechanisms underpinning helper NLR activation by sensor NLRs remain poorly understood.
Mauricio P. Contreras   +6 more
wiley   +1 more source

Heranca da tolerancia de melancia aos virus do mosaico amarelo da abobrinha-de-moita e do mosaico da melancia-2. [PDF]

open access: yes, 2011
A heranca da tolerancia da introducao de melancia BT-8501 aos virus do mosaico amarelo da abobrinha-de-moita (ZYMV) e do mosaico da melancia-2 (WMV-2) foi determinada atraves da inoculacao mecanica de plantas das geracoes parentais, F1, F2 e ...
PAVAN, M. A.   +2 more
core  

Commodity risk assessment of Prunus avium plants from United Kingdom

open access: yesEFSA Journal, Volume 22, Issue 7, July 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects'. This Scientific Opinion covers plant health risks posed by plants of Prunus avium possibly grafted on ...
EFSA Panel on Plant Health (PLH)   +33 more
wiley   +1 more source

Control of Disease Induced by Tospoviruses in Tomato: An Update of the Genetic Approach

open access: yesPhytopathologia Mediterranea, 2003
Advances in the search for genetic resistance to tospoviruses affecting tomato crops are reviewed. The economic losses caused by Tomato spotted wilt tospovirus (TSWV), the great number of hosts it affects and its wide distribution around the world has ...
J. Cebolla-Cornejo, S. Soler, F. Nuez
doaj   +1 more source

The Biology of Canadian Weeds. 126. \u3cem\u3eAmaranthus albus\u3c/em\u3e L., \u3cem\u3eA. blitoides\u3c/em\u3e S. Watson and \u3cem\u3eA. blitum\u3c/em\u3e L. [PDF]

open access: yes, 2003
A review of biological information is provided for three species of the genus Amaranthus: A. albus L., A. blitoides S. Watson and A. blitum L. The last species has been revised taxonomically and a new subspecies for Canada is presented—A.
Costea, Mihai, Tardif, François J.
core   +1 more source

The spread of new viral pathogens and phytoplasmas in cultivated plants and their risks

open access: yesFood Risk Assess Europe, Volume 4, Issue 1, January 2026.
Abstract The study contains a description of the genome and particles, spectrum of host plants, geographical distribution, forecast of spread and impacts on agricultural production, disease symptoms, life cycle, and means of protection in integrated and organic production in the Czech Republic for 22 plant viruses, 3 viroids and 4 phytoplasmas, in ...
wiley   +1 more source

Commodity risk assessment of Prunus spinosa plants from United Kingdom

open access: yesEFSA Journal, Volume 22, Issue 7, July 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by potted plants and bundles of bare‐root plants or
EFSA Panel on Plant Health (PLH)   +32 more
wiley   +1 more source

First Report of Natural Occurrence of Zucchini Lethal Chlorosis Tospovirus on Cucumber and Chrysanthemum Stem Necrosis Tospovirus on Tomato in Brazil

open access: yesPlant Disease, 1998
During a field survey in 1994, five cucumber (Cucumis sativus) cv. Hokushin plants showing symptom of yellowing, mottling, and vein banding on the leaves were collected from a commercial field of the Federal District. By electron microscopy, quasi-spherical particles with double membrane, typical tospovirus-like particles were found in the infected ...
Tatsuya, Nagata   +5 more
openaire   +2 more sources

Development of a tomato spotted wilt virus (TSWV) risk evaluation methology for a processing tomato region [PDF]

open access: yes, 2012
A risk map for the Tomato spotted wilt virus (TSWV) was elaborated for the main Portuguese processing tomato producing region, the “Ribatejo e Península de Setúbal” region, where periodically this virus causes severe losses.
Amaro, F.   +8 more
core   +3 more sources

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