Results 21 to 30 of about 22,098 (50)

A amostragem na avaliação das lixas-do-coqueiro Sampling in the evaluation of the coconut verrucoses

Pesquisa Agropecuária Brasileira, 2000
A avaliação das doenças foliares do coqueiro (Cocos nucifera L.), conhecidas como lixa-grande e lixa-pequena (verrugoses), causadas por Sphaeredothis acrocomiae e Phyllachora torrendiella, respectivamente, depara-se com o problema do método de amostragem,
MARIA DE LOURDES DA SILVA LEAL, DULCE REGINA NUNES WARWICK   +1 more
doaj   +1 more source

Impact of Pests on Cereal Grain and Nutrient Yield in Boreal Growing Conditions

Agronomy, 2021
The effect of weeds, plant diseases and insect pests on spring barley (Hordeum vulgare) and spring wheat (Triticum aestivum) grain and nutrient yield was examined. Long-term field trial data was used to assess the impact of different pests on grain yield.
Katja Kauppi, Ari Rajala, Erja Huusela, Janne Kaseva, Pentti Ruuttunen, Heikki Jalli, Laura Alakukku, Marja Jalli   +7 more
doaj   +1 more source

The Potential Use of Isothermal Amplification Assays for In-Field Diagnostics of Plant Pathogens

Plants, 2021
Rapid, sensitive, and timely diagnostics are essential for protecting plants from pathogens. Commonly, PCR techniques are used in laboratories for highly sensitive detection of DNA/RNA from viral, viroid, bacterial, and fungal pathogens of plants ...
Aleksandr V. Ivanov, Irina V. Safenkova, Anatoly V. Zherdev, Boris B. Dzantiev   +3 more
doaj   +1 more source

Identification and characterization of diseases in Cannabis sativa L.

Temas Agrarios, 2022
The medicinal Cannabis crop is one of the main growing agricultural activities in Colombia. However, the increase in production areas and the intensification of crops brings a greater predisposition to pests and diseases incidence.
Manuel Alfonso Patiño Moscoso, Gustavo Adolfo Rodríguez Yzquierdo, Mónica Betancourt Vásquez   +2 more
doaj   +1 more source

Detection of significant wavelengths for identifying and classifying Fusarium oxysporum during the incubation period and water stress in Solanum lycopersicum plants using reflectance spectroscopy

Journal of Plant Protection Research, 2019
Spectroscopy has become one of the most used non-invasive methods to detect plant diseases before symptoms are visible. In this study it was possible to characterize the spectral variation in leaves of Solanum lycopersicum L.
Juan Carlos Marín Ortiz, Lilliana María Hoyos Carvajal, Veronica Botero Fernandez   +2 more
doaj   +1 more source

Semi-VOCs of Wood Vinegar Display Strong Antifungal Activities against Oomycete Species Globisporangium ultimum and Pythium aphanidermatum

Microbiology Research, 2023
Plant disease outbreaks are increasingly exacerbated by climate change and the conditions of stress combinations. They are negatively affecting crop yield and driving threats to food security in many areas of the world.
Ali Chenari Bouket, Abolfazl Narmani, Kasra Sharifi, Shahram Naeimi, Mohammad Reza Afshar Mogaddam, Ali Asghar Hamidi, Lenka Luptakova, Faizah N. Alenezi, Lassaad Belbahri   +8 more
doaj   +1 more source

Maize Leaf Disease Recognition Based on Improved Convolutional Neural Network ShuffleNetV2

Plants
The occurrence of maize diseases is frequent but challenging to manage. Traditional identification methods have low accuracy and complex model structures with numerous parameters, making them difficult to implement on mobile devices.
Hanmi Zhou, Yumin Su, Jiageng Chen, Jichen Li, Linshuang Ma, Xingyi Liu, Sibo Lu, Qi Wu   +7 more
doaj   +1 more source

Tillage increases plant diseases

California Agriculture, 1969
Tillage practices have contributed greatly to increasing crop production. However, speculation and controversy have surrounded such practices as to the question of whether tillage increases or decrease: the incidence of disease in the growing crop.
C Yarwood
doaj  

Meteorological factors and Asian soybean rust epidemics: a systems approach and implications for risk assessment Fatores meteorológicos e as epidemias de ferrugem asiática: uma abordagem sistêmica e implicações na avaliação de risco

Scientia Agricola, 2008
Favorable meteorological and environmental conditions are critical components that affect Asian soybean rust (ASR), caused by Phakopsora pachyrhizi, the most damaging fungal disease of soybean. In this review, we used available knowledge on the effect of
Emerson Medeiros Del Ponte, Paul David Esker   +1 more
doaj   +1 more source

Management of Pest Insects and Plant Diseases by Non-Transformative RNAi

Frontiers in Plant Science, 2019
Since the discovery of RNA interference (RNAi), scientists have made significant progress towards the development of this unique technology for crop protection.
Deise Cagliari, Naymã P. Dias, Diogo Manzano Galdeano, Ericmar Ávila dos Santos, Guy Smagghe, Moisés João Zotti   +5 more
doaj   +1 more source