Results 31 to 40 of about 10,936 (187)

DEVELOPMENT OF FORECASTING SYSTEM FOR ONION DOWNY MILDEW IN EGYPT [PDF]

Journal of Productivity and Development, 2009
 Onion (Allium cepa L.) is grown worldwide for its fleshy bulbs which are used as food and medicinal purposes. In Egypt, onion is the 2nd major export crop after cotton. Downy mildew of onion, caused by Peronospora destructor (Berk.)Casp.
Sahar Zayan, Mohsen Afifi
doaj   +1 more source

Uso de enxofre na cultura da cebola em sistemas orgânico e convencional para o manejo de tripes e míldio e análise de rendimento

Revista Thema, 2017
O objetivo deste estudo foi avaliar o efeito de doses de enxofre aplicado em cobertura no solo no manejo de tripes, Thrips tabaci (Thysanopetra: Thripidae), e de míldio, Peronospora destructor, produtividade e rendimento pós-colheita de cebola, em ...
Paulo Antonio de Souza Gonçalves, Edivânio Rodrigues de Araújo, Claudinei Kurtz, Cristiano Mora   +3 more
doaj   +1 more source

Review of the existing maximum residue levels for ametoctradin according to Article 12 of Regulation (EC) No 396/2005

EFSA Journal, Volume 18, Issue 1, January 2020., 2020
Abstract According to Article 12 of Regulation (EC) No 396/2005, EFSA has reviewed the maximum residue levels (MRLs) currently established at European level for the pesticide active substance ametoctradin. To assess the occurrence of ametoctradin residues in plants, processed commodities, rotational crops and livestock, EFSA considered the conclusions ...
European Food Safety Authority (EFSA), Maria Anastassiadou, Giovanni Bernasconi, Alba Brancato, Luis Carrasco Cabrera, Luna Greco, Samira Jarrah, Aija Kazocina, Renata Leuschner, Jose Oriol Magrans, Ileana Miron, Stefanie Nave, Ragnor Pedersen, Hermine Reich, Alejandro Rojas, Angela Sacchi, Miguel Santos, Alois Stanek, Anne Theobald, Benedicte Vagenende, Alessia Verani   +20 more
wiley   +1 more source

Efeitos da adubação sobre a incidência de tripes e míldio e na produtividade da cultura da cebola

Agropecuária Catarinense, 2021
O objetivo do trabalho foi avaliar o efeito da adubação com nitrogênio, fósforo e potássio sobre a incidência de tripes (Thrips tabaci) e míldio (Peronospora destructor) e sobre produtividade da cultura da cebola. Os tratamentos foram metade, uma, duas e
Paulo Antônio de Souza Gonçalves, João Américo Wordell Filho, Claudinei Kurtz   +2 more
doaj  

Marker-assisted breeding of onion (A. cepa L.) maintainer line resistant to Downy mildew

Овощи России, 2021
Relevance. F1 hybrids breeding programs of onion are based on the use of nuclear cytoplasmic male sterility (NCMS). Breeding and seed production based on NCMS suggest a development of a female sterile maternal line, a maintainer line and a paternal ...
Ya. T. Eidlin, G. F. Monakhos, S. G. Monakhos   +2 more
doaj   +1 more source

Altas diluições dinamizadas de nitrato de cálcio e sulfato de potássio no manejo de tripes, míldio e rendimento de cebola em sistema orgânico de produção

Revista Thema, 2017
Estudos com substâncias ultradiluídas também têm sido realizados como estratégia de manejo fitossanitário para sistemas orgânicos de produção. O objetivo deste trabalho foi avaliar o efeito de altas diluições dinamizadas de nitrato de cálcio e sulfato ...
Paulo Antonio de Souza Gonçalves, Pedro Boff, Edivânio Rodrigues de Araújo   +2 more
doaj   +1 more source

Doses of ash from carbonized rice husk on the incidence and damage of thrips, downy mildew severity and yield of onion under organic system

Vértices, 2017
The objective of this study was to evaluate the effect of ash from carbonized rice husk on the incidence and damage of thrips, downy mildew severity, yield, onion postharvest performance and chemical characteristics of the soil in organic system.
Paulo Antonio de Souza Gonçalves, Edivânio Rodrigues de Araújo, João Vieira Neto, Fábio Satoshi Higashikawa, Cristiano Mora   +4 more
doaj   +1 more source

Monitoring of Peronospora destructor Primary and Secondary Inoculum by Real-Time qPCR

Plant Disease, 2020
Onion downy mildew (ODM), caused by Peronospora destructor, is a serious threat for onion growers worldwide. In southwestern Québec, Canada, a steady increase in occurrence of ODM has been observed since the mid-2000s. On onion, P. destructor can develop local and systemic infections producing numerous sporangia which act as initial inoculum locally ...
Hervé Van der Heyden, Guillaume J. Bilodeau, Odile Carisse, Jean-Benoit Charron   +3 more
openaire   +2 more sources

Antagonistic effect of rhizospheric bacteria against white rot (Sclerotium cepivorum) of garlic (Allium sativum L.) under in vitro and in vivo conditions

Agrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Garlic (Allium sativum), a vegetable crop used for food, medicine, and condiments, is affected by white rot (Sclerotium cepivorum). Garlic yield reduction is influenced by several factors, with biotic stresses, particularly fungal pathogens, being among the most significant.
Mussa Adal Mohammed, Asmare Dejen Demeke
wiley   +1 more source

Entomopatógenos e óleo de nim associados a silício no manejo de tripes, míldio e rendimento de cebola

Agropecuária Catarinense, 2019
O objetivo desse estudo foi avaliar entomopatógenos e óleo de nim associados a silício no manejo de tripes, míldio e variáveis de rendimento em cebola.
Paulo Antonio de Souza Gonçalves, Edivânio Rodrigues de Araújo   +1 more
doaj   +1 more source