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Journal Article 2012-05

Autor: Obeng-Antwi, K. Craufurd, Peter Q. Menkir, A. Ellis, R.H. Sallah, P.Y.K.

Detailed knowledge of the genetic diversity among maize (Zea mays L.) germplasm is useful for their systematic and efficient use in breeding programmes. Two multivariate techniques were used to characterize 77 landraces collected from southern Ghana and four Ghanaian improved varieties. The ...

Enlace original: https://cgspace.cgiar.org/handle/10568/80859

Investigación en Agricultura
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Obeng-Antwi, K. ,  Craufurd, Peter Q. ,  Menkir, A. ,  Ellis, R.H. ,  Sallah, P.Y.K. ,  [Phenotypic diversity in maize landraces in Ghana] ,  Phenotypic diversity in maize landraces in Ghana
Journal Article 2018-02-15

Autor: Ellis, R.H. Nasehzadeh, M. Hanson, Jean Woldemariam, Y.

Genebanks maintaining seeds for long-term genetic resources conservation monitor seed lots to detect early loss in viability. Monitoring is costly and depletes valuable seed. Three decades of genebank seed germination test results of diverse forage species from 50 legume genera in the Internation...

Enlace original: https://cgspace.cgiar.org/handle/10568/89198

Investigación en Agricultura
Enlace permanente
Ellis, R.H. ,  Nasehzadeh, M. ,  Hanson, Jean ,  Woldemariam, Y. ,  [Medium-term seed storage of 50 genera of forage legumes and evidence-based genebank monitoring intervals] ,  Medium-term seed storage of 50 genera of forage legumes and evidence-based genebank monitoring intervals
Journal Article 2011

Autor: Obeng-Antwi, K. Craufurd, Peter Q. Menkir, A. Ellis, R.H. Sallah, P.Y.K.

Information about landrace diversity has practical implications for its preservation, efficient management and effective utilization in breeding programmes. The objectives of the study were to (i) compare molecular and agronomic diversity estimates of two divergent landraces (AA007/92 and AA098/9...

Enlace original: https://cgspace.cgiar.org/handle/10568/89375

Investigación en Agricultura
Enlace permanente
Obeng-Antwi, K. ,  Craufurd, Peter Q. ,  Menkir, A. ,  Ellis, R.H. ,  Sallah, P.Y.K. ,  [Intralandrace variability of two landraces in Ghana] ,  Intralandrace variability of two landraces in Ghana
Journal Article 1999

Autor: Qi, A. Wheeler, T.R. Keatinge, J.D.H. Ellis, R.H. Summerfield, R.J. Craufurd, Peter Q.

Simple models of the growth and development of legume cover crops in di erent environments may aid the selection of species and genotypes most suitable for particular farming systems. The e ects of temperature and photoperiod on the daily rate of seedling emergence (1/t50%) and the rate of leaf a...

Enlace original: https://cgspace.cgiar.org/handle/10568/98028

Investigación en Agricultura
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Qi, A. ,  Wheeler, T.R. ,  Keatinge, J.D.H. ,  Ellis, R.H. ,  Summerfield, R.J. ,  Craufurd, Peter Q. ,  [Modelling the effects of temperature on the rates of seedling emergence and leaf appearance in legume cover crops] ,  Modelling the effects of temperature on the rates of seedling emergence and leaf appearance in legume cover crops
Journal Article 1999

Autor: QI, A. Ellis, R.H. Keatinge, J.D.H. Wheeler, T.R. Tarawali, S.A. Summerfield, R.J.

The use of Mucuna spp. in cover crop and green manure technologies is proving to be successful in the tropics and subtropics following intensive efforts in technology transfer to farmers by NGOs (Non‐Governmental Organizations). This includes the transfer of seeds of Mucuna spp. for which the ran...

Enlace original: https://cgspace.cgiar.org/handle/10568/98030

Investigación en Agricultura
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QI, A. ,  Ellis, R.H. ,  Keatinge, J.D.H. ,  Wheeler, T.R. ,  Tarawali, S.A. ,  Summerfield, R.J. ,  [Differences in the effects of temperature and photoperiod on progress to flowering among diverse Mucuna spp] ,  Differences in the effects of temperature and photoperiod on progress to flowering among diverse Mucuna spp
Journal Article 2019-03-30

Autor: Ellis, R.H. Nasehzadeh, M. Hanson, Jean Ndiwa, Nicholas N. Woldemariam, Yeshi
Enlace original: https://cgspace.cgiar.org/handle/10568/105829

Investigación en Agricultura
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Ellis, R.H. ,  Nasehzadeh, M. ,  Hanson, Jean ,  Ndiwa, Nicholas N. ,  Woldemariam, Yeshi ,  [Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards] ,  Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards
Journal Article 1996

Autor: Craufurd, P.Q. Ellis, R.H. Summerfield, R.J. Menin, L.

The base (Tb), optimum (To) and ceiling (Tce) temperature for 50% seed germination and seedling emergence, and the thermal time at sub-optimal temperatures (θ1), were examined in experiments with a range of cowpea genotypes from different habitats and latitudes. There was substantial genotypic va...

Enlace original: https://cgspace.cgiar.org/handle/10568/103261

Investigación en Agricultura
Enlace permanente
Craufurd, P.Q. ,  Ellis, R.H. ,  Summerfield, R.J. ,  Menin, L. ,  [Development in cowpea (Vigna unguiculata); l: the influence of temperature on seed germination and emergence] ,  Development in cowpea (Vigna unguiculata); l: the influence of temperature on seed germination and emergence

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