Results 21 to 30 of about 341 (145)

Fungicidal Effect of Some Plant Extracts against Tuber Dry Rot of White Yam (Dioscorea Rotundata Poir) Caused by Aspergillus Niger

open access: yesInternational Journal of Horticulture & Agriculture, 2018
In vitro study was carried out to test the efficacy of Azadirachta indica A. Juss. (Neem), Nicotiana tabacum Linn. (Tobacco), rhizomes of Zingiber officinale Rosc. (Ginger) leaves of Carica papaya Lam. (pawpaw) and seeds of Piper nigrum Linn. (Black pepper) and a chemical fungicide (mancozeb) at three concentrations of plant extracts (30, 60 and 90 g/L)
Victor Iorungwa Gwa   +1 more
openaire   +1 more source

Antifungal Effects Of Botanical Leaf Extracts On Tuber Rots Of Yam [PDF]

open access: yes, 2008
The fungicidal effects of dry and fresh leaf extracts of Axardirachta indica (L) and Ocimum grattissimum on the rot of yam tubers were investigated. Fusaruim oxysporium, Rhjzopus stolonifer, Botryodiplodia theobromae and Aspergillus Niger (root pathogens)
V U Osuoha   +3 more
core   +1 more source

Morphological and molecular characterization of Pratylenchus species from Yam (Dioscorea spp.) in West Africa [PDF]

open access: yes, 2020
The root-lesion nematodes (RLN), Pratylenchus spp., are among the major plant-parasitic nematodes affecting yam (Dioscorea spp.) production in West Africa.
Viaene, Nicole   +13 more
core   +1 more source

Distribution, prevalence, and severity of damages caused by nematodes on yam (Dioscorea rotundata) in NIssathme30igeria [PDF]

open access: yes, 2020
Nigeria is the main yam-growing country of the world. In the country, various plant-parasitic nematodes have been reported constraining yam production and the storability of tubers. This study established the damage level of nematodes on white yam tubers
Coyne, Daniel   +6 more
core   +1 more source

Pathogenicity of Scutellonema bradys populations from different geographical areas in Benin on yam (Dioscorea spp.) [PDF]

open access: yes, 2009
Scutellonema bradys is the most important nematode species affecting yam production in Benin. Two experiments were conducted to assess the variation in pathogenicity of three separate populations of S.
Coyne, Danny   +2 more
core   +1 more source

Yam-based farm practices and nematode problems in stored yams (<i>Dioscorea spp</i>.) in Ghana [PDF]

open access: yes, 2006
A survey was made to provide fundamental information on yam-based farm practices, nematode problems and to establish farmers' perceptions of nematode diseases in stored yam tubers in Ghana.
RA Plowright   +7 more
core   +1 more source

Search for scutellonema bradys resistance in yams (dioscorea spp.) [PDF]

open access: yes, 2008
A study to examine variability in susceptibility of yams to Scutellonema bradys and to identify possible sources of resistance in Ghanaian yam germplasm (Dioscorea spp.) for use in yam improvement programmes, particularly, in West Africa was undertaken ...
R A Plowright   +7 more
core   +2 more sources

Identification of fungi associated with dry rot disease of yam under storage conditions

open access: yes, 2020
Dry rot of yam tubers is a disease that currently causes the greatest economic losses to small producers associated with this crop in the Colombian Caribbean, as it deteriorates the internal tissues of tubers, causing loss of its commercial value and the seeds.
Sánchez López, Diana Beatriz   +4 more
openaire   +2 more sources

Infection capacity of fungi associated with dry rot disease of yam tubers : Fungal infection

open access: yes, 2021
La pudrición seca de los tubérculos es una de las enfermedades más devastadoras en la producción de ñame espino (Dioscorea rotundata Poir.) en la región Caribe de Colombia.  Esta enfermedad ataca los tubérculos ocasionando pérdidas de producción durante el cultivo.
Sánchez López, Diana Beatriz   +4 more
openaire   +1 more source

Intensity of dry rot disease of yam in the State of Alagoas, Brazil. [PDF]

open access: yes, 2013
The objective of this study was to conduct a survey on the presence of phytonematodes associated with dry rot disease, to be able to quantify and identify the species being damaged, and to evaluate the disease incidence in the main yam-growing areas in ...
SILVA, E. J. da   +5 more
core  

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