Results 71 to 80 of about 2,133 (172)
Archives of Phytopathology and Plant Protection, 2015 Twenty-two cassava genotypes and eight controls were evaluated in two cropping seasons for resistance to cassava mosaic disease (CMD) at the International Institute of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease incidence (DI) and index of symptom severity data were obtained monthly at each location and ...
Ariyo, O.A. +4 more
openaire +2 more sources
Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Uganda
EFSA 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
International Journal of Virology, 2006 A begomovirus was recently shown to be causing Jatropha mosaic disease (JMD) on Jatropha for the first time in India. A typical begomovirus-like symptoms characterized by chlorotic specks on leaves, curling and malformation of leaves, severe reduction in leaf size, partial or complete sterility were seen on infected plants.
D.S. Aswatha Narayana +6 more
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Symptom severity of cassava mosaic disease in relation to concentration of African cassava mosaic virus in different cassava genotypes [PDF]
Plant Pathology, 2003 The concentration of African cassava mosaic virus (ACMV) was assessed by enzyme‐linked immunosorbent assay in relation to symptom severity among resistant, moderately resistant and susceptible cassava genotypes. Resistant genotype NR 8083 had significantly lower symptom severity scores (
Ogbe, F. +3 more
openaire +2 more sources
Plant-Environment Interactions, Volume 6, Issue 6, December 2025.ABSTRACT Cassava is a crucial staple crop in Africa, but its productivity is increasingly threatened by the worsening impacts of drought caused by climate change. To address this challenge, an integration of “omics” and genome editing technologies has emerged as indispensable tools for understanding the complex mechanisms that govern cassava's response
Ambesa Mantewu +3 more
wiley +1 more source
Entomological Research, Volume 55, Issue 12, December 2025.ABSTRACT The whitefly Bemisia tabaci MEAM1 (Gennadius) (Hemiptera: Aleyrodidae) is a major agricultural pest that infests a wide range of crops and transmits several plant viruses, leading to significant yield losses worldwide. The intensive use of chemical insecticides for its control has contributed to the development of resistance, highlighting the ...
Adriele Castro Ferreira +10 more
wiley +1 more source
Molecular Plant Pathology, Volume 26, Issue 12, December 2025.Using a virus‐inducible promoter to drive the expression of the Avr4/Cf‐4 gene pair can trigger a hypersensitive response upon viral infection, which confers plants broad‐spectrum resistance to geminiviruses. ABSTRACT The hypersensitive response (HR) is a powerful plant defence mechanism that restricts pathogen spread through localised cell death ...
Ran‐Ran Pan +7 more
wiley +1 more source
A TIR‐NLR gene from Arabidopsis Pla‐1 confers resistance to geminivirus infection
The Plant Journal, Volume 124, Issue 5, December 2025.SUMMARY Geminiviruses are single‐stranded DNA viruses that infect many plant species and cause serious losses in agronomically important crops. An earlier study showed that the Arabidopsis thaliana ecotype Pla‐1 is resistant to infection by diverse geminivirus species and mapped the major resistance locus Geminivirus Resistance of Pla‐1 1 (GRP1) to ...
Wei Shen +8 more
wiley +1 more source
Resistance profile of improved cassava germplasm to cassava mosaic disease in Nigeria
Euphytica, 2006 Cassava mosaic disease (CMD) caused by a group of begomoviruses and transmitted by whitefly vector is a serious disease in all the cassava-growing areas of Africa. Field evaluation with replication was conducted in 2003 and 2004 in three agroecologies in Nigeria to study the response of 40 cassava genotypes to CMD and to investigate genotype ...
Egesi, Chiedozie N. +4 more
openaire +2 more sources
EFSA Journal, Volume 23, Issue 12, December 2025.Abstract Genetically modified cotton GHB614 × T304‐40 × GHB119 × COT102 was developed by crossing to combine four single events: GHB614, T304‐40, GHB119 and COT102. The four‐event‐stack cotton expresses 2mEPSPS, Cry1Ab, Cry2Ae, Vip3Aa19 and PAT/bar to confer herbicide tolerance and insect resistance.
EFSA Panel on Genetically Modified Organisms (GMO) +27 more
wiley +1 more source