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Conference Paper 1994

Autor: Otoo, J. Dixon, A. Asiedu, Robert Okeke, J.E. Maroya, N. Tougnon, K. Okoli, O. Tetteh, J.P. Hahn, S.K.

Multilocational trials were conducted in several agroecological zones in West Africa to assess the magnitude of genotype x environment (G x E) interaction and to identify stable varieties which could be used in breeding programs in the region. The reaction of the varieties to major cassava diseas...

Enlace original: https://cgspace.cgiar.org/handle/10568/101027

Investigación en Agricultura
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Otoo, J. ,  Dixon, A. ,  Asiedu, Robert ,  Okeke, J.E. ,  Maroya, N. ,  Tougnon, K. ,  Okoli, O. ,  Tetteh, J.P. ,  Hahn, S.K. ,  [Genotype environment interaction studies with cassava] ,  Genotype environment interaction studies with cassava
Book Chapter 1992

Autor: Hahn, S.K. Bai, K.V. Asiedu, Robert Dixon, Alfred G.O. Tavoletti, S. Mariani, A., Veronesi, F. Tuyl, J.M. van Creji, M.G.M. van Dien, M.P. van Kerckhoffs, D.M.F.Y Laublin, G. Brault, M. Cappadocia, M. Makoveychuk, A.

Plant reproduction is a core process in plant breeding. For decades, one can even say for centuries, plant reproductive biology has largely been a matter of observation, description, and philosophical speculation. Only in the last two decades has it entered the experimental phase, and it is in th...

Enlace original: https://cgspace.cgiar.org/handle/10568/101707

Investigación en Agricultura
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Hahn, S.K. ,  Bai, K.V. ,  Asiedu, Robert ,  Dixon, Alfred G.O. ,  Tavoletti, S. ,  Mariani, A., Veronesi, F. ,  Tuyl, J.M. van ,  Creji, M.G.M. van ,  Dien, M.P. van ,  Kerckhoffs, D.M.F.Y ,  Laublin, G. ,  Brault, M. ,  Cappadocia, M. ,  Makoveychuk, A. ,  [Biotechnology in reproductive biology] ,  Biotechnology in reproductive biology
Conference Paper 1991

Autor: Kanno, H. Dixon, A. Asiedu, Robert Hahn, S.K.

Major upland soils in the humid and sub humid zones of West Africa consist of low activity clays (LAC) Alfisols, Ultisols and Oxisols. Alfisols which are less leached and have a high base saturation are more dominant in the sub-humid zone. Chemically they are more fertile, but they have a low str...

Enlace original: https://cgspace.cgiar.org/handle/10568/101726

Investigación en Agricultura
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Kanno, H. ,  Dixon, A. ,  Asiedu, Robert ,  Hahn, S.K. ,  [Host plant resistance of cassava green spider mite (CGM) (Mononychellus tanajoa Bondar) at IITA] ,  Host plant resistance of cassava green spider mite (CGM) (Mononychellus tanajoa Bondar) at IITA
Conference Paper 1994

Autor: Mignouna, H. Asiedu, Robert Thottappilly, G. Hahn, S.K.
Enlace original: https://cgspace.cgiar.org/handle/10568/101777

Investigación en Agricultura
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Mignouna, H. ,  Asiedu, Robert ,  Thottappilly, G. ,  Hahn, S.K. ,  [Genetic diversity and phylogenetic relationships in the genus Dioscorea using PCRRAPD] ,  Genetic diversity and phylogenetic relationships in the genus Dioscorea using PCRRAPD
Conference Paper 1990

Autor: Hahn, S.K. Vuylsteke, D.R. Swennen, R.
Enlace original: https://cgspace.cgiar.org/handle/10568/101850

Investigación en Agricultura
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Hahn, S.K. ,  Vuylsteke, D.R. ,  Swennen, R. ,  [First reactions to ABB cooking bananas distributed in southeastern Nigeria] ,  First reactions to ABB cooking bananas distributed in southeastern Nigeria
Journal Article 1990

Autor: Hahn, S.K. Bai, K.V. Asiedu, Robert

Interspecific crosses of five cultivated cassava varieties (2n=36) were made with two related Manihot species, M. epruinosa (2n=36) and M. glaziovii (2n=36). From these diploid interspecific crosses, four spontaneous tetraploids (2n=4x=72) and two triploids (2n=3x=54) were isolated for the first ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101857

Investigación en Agricultura
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Hahn, S.K. ,  Bai, K.V. ,  Asiedu, Robert ,  [Tetraploids, triploids and 2n pollen from diploid interspecific crosses with cassava] ,  Tetraploids, triploids and 2n pollen from diploid interspecific crosses with cassava
Conference Paper 1994

Autor: Hahn, S.K.

Food production in sub-Saharan Africa has not kept up with population growth and the increasing pressure of population on the land has decreased the resource base and caused the farming environment to become vulnerable to unpredictable climatic changes. Thus, there will be more acute food deficit...

Enlace original: https://cgspace.cgiar.org/handle/10568/101103

Investigación en Agricultura
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Hahn, S.K. ,  [Root crops for food security in subSaharan Africa] ,  Root crops for food security in subSaharan Africa
Book Chapter 1991

Autor: Allem, A.C. Hahn, S.K.

The types of germplasm needed for the different agroecological zones where cassava is grown are outlined briefly in terms of what the main supplier (South America) has to offer. Africa's Atlantic coastal belt, its tropical rain forests, its extensive savannas, and the arid zones are examined in r...

Enlace original: https://cgspace.cgiar.org/handle/10568/101747

Investigación en Agricultura
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Allem, A.C. ,  Hahn, S.K. ,  [Cassava germplasm strategies for Africa] ,  Cassava germplasm strategies for Africa
Conference Paper 1994

Autor: Porto, M.C. Asiedu, Robert Dixon, A. Hahn, S.K.

An agroecologically-based germplasm enhancement strategy to further broaden the genetic base of cassava in selected ecologies of Africa was initiated by CIAT and IITA in 1990. Crosses are being made at CIAT, in Colombia, using parents adapted to four different agroecologies of South America with ...

Enlace original: https://cgspace.cgiar.org/handle/10568/100965

Investigación en Agricultura
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Porto, M.C. ,  Asiedu, Robert ,  Dixon, A. ,  Hahn, S.K. ,  [An agroecologically oriented introduction of cassava germplasm from Latin America into Africa] ,  An agroecologically oriented introduction of cassava germplasm from Latin America into Africa

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