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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
Book 1985

Autor: Ellis, R.H. Hong, T.D. Roberts, E.H. International Plant Genetic Resources Institute

This first volume of seed technology for genebanks deals with many of the principles of seed testing which need to be understood when monitoring the viability of seed accessions maintained in genebanks. It is the second in a general series of genebank handbooks. (Reprinted 1989)

Enlace original: https://cgspace.cgiar.org/handle/10568/104237

Investigación en Agricultura
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Ellis, R.H. ,  Hong, T.D. ,  Roberts, E.H. ,  International Plant Genetic Resources Institute ,  [Handbook of Seed Technology for Genebanks: Volume I: principles and methodology] ,  Handbook of Seed Technology for Genebanks: Volume I: principles and methodology
Book 1985

Autor: Ellis, R.H. Hong, T.D. Roberts, E.H. International Board for Plant Genetic Resources

This second volume on seed technology for genebanks provides general approaches, detailed information, guidance and, when available, prescriptions for removing dormancy and germinating the seeds. It is the third in a general series of genebank handbooks. (Reprinted 1989)

Enlace original: https://cgspace.cgiar.org/handle/10568/105406

Investigación en Agricultura
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Ellis, R.H. ,  Hong, T.D. ,  Roberts, E.H. ,  International Board for Plant Genetic Resources ,  [Handbook of seed technology for genebanks: Volume II: compendium of specific germination information and test recommendation] ,  Handbook of seed technology for genebanks: Volume II: compendium of specific germination information and test recommendation
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
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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
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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
Book 1996

Autor: Hong, T.D. Ellis, R.H. International Plant Genetic Resources Institute

This publications provides an approach by which conservationists can determine whether or not long-term seed storage is feasible for a particular species, i.e. whether or not that species shows orthodox seed storage behaviour. It provides advice on the implementation of the protocol, examples of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/104973

Investigación en Agricultura
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Hong, T.D. ,  Ellis, R.H. ,  International Plant Genetic Resources Institute ,  [A protocol to determine seed storage behaviour] ,  A protocol to determine seed storage behaviour
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
Book 1996

Autor: Hong, T.D. Linington, S. Ellis, R.H. International Plant Genetic Resources Institute

This handbook provides an introduction to seed storage physiology for those responsible for plant genetic conservation and a selective summary of the literature on seed survival in storage, and thus on seed storage behaviour, for over 7000 species from 251 families. Part IA summarizes progress in...

Enlace original: https://cgspace.cgiar.org/handle/10568/105158

Investigación en Agricultura
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Hong, T.D. ,  Linington, S. ,  Ellis, R.H. ,  International Plant Genetic Resources Institute ,  [Seed storage behavior: a compendium] ,  Seed storage behavior: a compendium

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