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Journal Article 2015

Autor: Claudius-Cole, A.O. Fawole, B. Asiedu, Robert

Effective management of plant-parasitic nematodes affecting yams includes practices that can break the pest cycle from field to store. This study evaluated nematode population changes under cover crop cultivation following a main yam crop. Ten cover crops were planted after the harvest of the yam...

Enlace original: https://cgspace.cgiar.org/handle/10568/74450

Investigación en Agricultura
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Claudius-Cole, A.O. ,  Fawole, B. ,  Asiedu, Robert ,  [Population changes of plant-parasitic nematodes associated with cover crops following a yam (Dioscorea rotundata) crop] ,  Population changes of plant-parasitic nematodes associated with cover crops following a yam (Dioscorea rotundata) crop
Journal Article 2016-01-13

Autor: Claudius-Cole, A.O. Asiedu, Robert Fawole, B.

Yam tuber dry rot caused by Scutellonema bradys results in the reduction of tuber quality. Studies were conducted on the effect of intercropping cover crops with yams on nematode damage to tubers. Eleven cover crops were intercropped with yams in pot screen house and field experiments. Plants wer...

Enlace original: https://cgspace.cgiar.org/handle/10568/70226

Investigación en Agricultura
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Claudius-Cole, A.O. ,  Asiedu, Robert ,  Fawole, B. ,  [Tropical cover crops for the management of the yam nematode, Scutellonema bradys] ,  Tropical cover crops for the management of the yam nematode, Scutellonema bradys
Journal Article 2001

Autor: Craufurd, Peter Q. Summerfield, R. Asiedu, Robert Prasad, P.

The tubers of yam, principally those of Dioscorea rotundata (white Guinea yam) and D. alata (water or greater yam), are important staple foods and sources of carbohydrate in West Africa. Yams are grown in diverse environments – from the high-rainfall forest zone on the coast to the seasonally ari...

Enlace original: https://cgspace.cgiar.org/handle/10568/92673

Investigación en Agricultura
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Craufurd, Peter Q. ,  Summerfield, R. ,  Asiedu, Robert ,  Prasad, P. ,  [Dormancy in yams] ,  Dormancy in yams
Journal Article 2003-12

Autor: Abang, Mathew M. Winter, S. Mignouna, H.D. Green, K.R. Asiedu, Robert

Water yam (Dioscorea alata L.) is the most widely cultivated yam species globally. The major limitation to the profitable and sustainable production of D. alata is its susceptibility to anthracnose disease. The availability of resistant varieties could potentially form the cornerstone of an integ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96374

Investigación en Agricultura
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Abang, Mathew M. ,  Winter, S. ,  Mignouna, H.D. ,  Green, K.R. ,  Asiedu, Robert ,  [Molecular taxonomic, epidemiological and population genetic approaches to understanding yam anthracnose disease] ,  Molecular taxonomic, epidemiological and population genetic approaches to understanding yam anthracnose disease
Journal Article 2014

Autor: Balogun, M. Maroya, N. Asiedu, Robert

Yam production is constrained by scarcity of clean seed, pests, diseases and low soil fertility in the informal seed system, which is still operational, causing up to 90% yield losses. Although meristem culture can be effective for producing healthy seed yam, its use is limited by slow rate of re...

Enlace original: https://cgspace.cgiar.org/handle/10568/75918

Investigación en Agricultura
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Balogun, M. ,  Maroya, N. ,  Asiedu, Robert ,  [Status and prospects for improving yam seed systems using temporary immersion bioreactors] ,  Status and prospects for improving yam seed systems using temporary immersion bioreactors
Journal Article 2009

Autor: Mignouna, H.D. Abang, Mathew M. Asiedu, Robert Geeta, R.

This protocol describes how to produce yam (Dioscorea) seeds through controlled pollination of flowers on female plants. Pollination by flower thrips takes place naturally in normal yam-growing environments in the presence of flowering male and female genotypes, although it is not efficient. This...

Enlace original: https://cgspace.cgiar.org/handle/10568/90221

Investigación en Agricultura
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Mignouna, H.D. ,  Abang, Mathew M. ,  Asiedu, Robert ,  Geeta, R. ,  [Producing yam (Dioscorea) seeds through controlled crosses] ,  Producing yam (Dioscorea) seeds through controlled crosses
Journal Article 2009

Autor: Mignouna, H.D. Abang, Mathew M. Asiedu, Robert Geeta, R.
Enlace original: https://cgspace.cgiar.org/handle/10568/90223

Investigación en Agricultura
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Mignouna, H.D. ,  Abang, Mathew M. ,  Asiedu, Robert ,  Geeta, R. ,  [Culturing meristematic tissue and node cuttings from yams (Dioscorea)] ,  Culturing meristematic tissue and node cuttings from yams (Dioscorea)
Journal Article 2009

Autor: Mignouna, H.D. Abang, Mathew M. Asiedu, Robert Geeta, R.
Enlace original: https://cgspace.cgiar.org/handle/10568/90217

Investigación en Agricultura
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Mignouna, H.D. ,  Abang, Mathew M. ,  Asiedu, Robert ,  Geeta, R. ,  [True yams (Dioscorea): a biological and evolutionary link between eudicots and grasses] ,  True yams (Dioscorea): a biological and evolutionary link between eudicots and grasses
Journal Article 2009

Autor: Obidiegwu, J.E. Rodríguez, E. Ene-Obong, E.E. Loureiro, J. Muoneke, C.O. Santos, C. Kolesnikova-Allen, M. Asiedu, Robert

Nuclear DNA content of 54 accessions of 6 Dioscorea species collected from West African countries were determined using flow cytometry. Observed ploidy levels are diploid (2x), triploid (3x), tetraploid (4x), hexaploid (6x) and octoploid (8x). DNA index varied from 0.36 to 1.54 depending on the c...

Enlace original: https://cgspace.cgiar.org/handle/10568/90219

Investigación en Agricultura
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Obidiegwu, J.E. ,  Rodríguez, E. ,  Ene-Obong, E.E. ,  Loureiro, J. ,  Muoneke, C.O. ,  Santos, C. ,  Kolesnikova-Allen, M. ,  Asiedu, Robert ,  [Estimation of the nuclear DNA content in some representative of genus Dioscorea] ,  Estimation of the nuclear DNA content in some representative of genus Dioscorea
Journal Article 2010

Autor: Babil, P.K. Kikuno, H. Shiwachi, H. Toyohara, H. Fujigaki, J. Fujimaki, H. Asiedu, Robert

The genus Dioscorea is considered to be one of the most difficult groups for cyto-taxonomic studies because of the large number and small size of the chromosomes. The objective of the present study was to develop an efficient method of chromosome observation by identifying the optimum time for co...

Enlace original: https://cgspace.cgiar.org/handle/10568/90365

Investigación en Agricultura
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Babil, P.K. ,  Kikuno, H. ,  Shiwachi, H. ,  Toyohara, H. ,  Fujigaki, J. ,  Fujimaki, H. ,  Asiedu, Robert ,  [Optimum time for collection of root samples for chromosome observation in yams (Dioscorea spp.)] ,  Optimum time for collection of root samples for chromosome observation in yams (Dioscorea spp.)

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