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Journal Article 1994

Autor: Orkwor, G. Okereke, O. Ezedinma, C. Hahn, S. Ezumah, H. Akobundu, I.

Yam was intercropped with maize, okra, and sweet potato and subjected to various periods of weed interference and weed-free regimes. The field trials were conducted for two cropping seasons at the research farm of the National Root Crops Institute, Umudike, Nigeria, 5° 29' N latitude and 7° 32' E...

Enlace original: https://cgspace.cgiar.org/handle/10568/97385

Investigación en Agricultura
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Orkwor, G. ,  Okereke, O. ,  Ezedinma, C. ,  Hahn, S. ,  Ezumah, H. ,  Akobundu, I. ,  [Response of yam (Dioscorea rotundata Poir.) to various periods of weed interference in an intercropping with maize (Zea mays L.), okra (Abelmoschus esculentus L. Moench), and sweet potato (Ipomoea batatas L. Lam)] ,  Response of yam (Dioscorea rotundata Poir.) to various periods of weed interference in an intercropping with maize (Zea mays L.), okra (Abelmoschus esculentus L. Moench), and sweet potato (Ipomoea batatas L. Lam)
Journal Article 1994

Autor: Osiru, D. Hahn, S.

Two similar experiments are described in which the effects of different mulching materials and staking on the growth, development and yield of white yam (Dioscorea rotundata) Minisetts were studied. One white yam cultivar TDR 131 was used and the treatments were: black and white embossed polyethy...

Enlace original: https://cgspace.cgiar.org/handle/10568/97399

Investigación en Agricultura
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Osiru, D. ,  Hahn, S. ,  [Effects of mulching materials on the growth, development and yield of white yam] ,  Effects of mulching materials on the growth, development and yield of white yam
Journal Article 1994

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

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/10568/97369

Investigación en Agricultura
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Otoo, J. ,  Dixon, A. ,  Asiedu, Robert ,  Okeke, J. ,  Maroya, N. ,  Tougnon, K. ,  Okoli, O. ,  Tetteh, J. ,  Hahn, S. ,  [Genotype x environment interaction studies with cassava] ,  Genotype x environment interaction studies with cassava
Journal Article 1994

Autor: Hahn, S. Bai, K. Chukwuma, E. Asiedu, Robert Dixon, A. Ng, S.

Spontaneous sexual and asexual polyploids occur in cassava. The cassava polyploid breeding strategies using these polyploidization processes are discussed. Sexual polyploidization has advantages over asexual polyploidization in terms of viability of gametes, heterosis, vigor, plant architecture, ...

Enlace original: https://cgspace.cgiar.org/handle/10568/97367

Investigación en Agricultura
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Hahn, S. ,  Bai, K. ,  Chukwuma, E. ,  Asiedu, Robert ,  Dixon, A. ,  Ng, S. ,  [Polyploid breeding of cassava] ,  Polyploid breeding of cassava
Journal Article 1989

Autor: Hahn, S.

Cassava is grown in 31 African countries and consumption per capita averages just over 100 kg/year. This article reviews traditional cassava processing and utilization as now practised by small-scale farmers and processors in Africa, and examines the opportunities for improving post-harvest opera...

Enlace original: https://cgspace.cgiar.org/handle/10568/98610

Investigación en Agricultura
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Hahn, S. ,  [An overview of African traditional cassava processing and utilization] ,  An overview of African traditional cassava processing and utilization
Journal Article 1989

Autor: Hahn, S. Isoba, J. Ikotun, T.

Despite the advantages of root crops as important staple food crops in the tropics, research and development of such crops has been neglected. There is, therefore, the need for production, processing and utilization techniques to be developed, evaluated and made available to farmers. However, bec...

Enlace original: https://cgspace.cgiar.org/handle/10568/98689

Investigación en Agricultura
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Hahn, S. ,  Isoba, J. ,  Ikotun, T. ,  [Resistance breeding in root and tuber crops at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria] ,  Resistance breeding in root and tuber crops at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria
Journal Article 1992

Autor: Segnou, M. Fatokun, C. Akoroda, M.O. Hahn, S.

Investigations were conducted on the identification and distribution of yam natural pollinators, flowering pattern and hybridization of white yam (Dioscorea rotundata Poir.) at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, in order to provide informations for produc...

Enlace original: https://cgspace.cgiar.org/handle/10568/98694

Investigación en Agricultura
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Segnou, M. ,  Fatokun, C. ,  Akoroda, M.O. ,  Hahn, S. ,  [Studies on the reproductive biology of white yam (Dioscorea rotundata Poir.)] ,  Studies on the reproductive biology of white yam (Dioscorea rotundata Poir.)
Journal Article 1990

Autor: Hill, W. Dodo, H. Hahn, S. Mulongoy, K. Adeyeye, S.

Previous work suggests that some sweet potato (Ipomoea batatas, L.) cultivars can produce high storage root yields on soils without fertilizer N addition. This study was conducted to compare storage root yields, total biomass, N uptake and fibrous root weights of sweet potato cultivars grown on l...

Enlace original: https://cgspace.cgiar.org/handle/10568/98621

Investigación en Agricultura
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Hill, W. ,  Dodo, H. ,  Hahn, S. ,  Mulongoy, K. ,  Adeyeye, S. ,  [Sweet potato root and biomass production with and without nitrogen fertilization] ,  Sweet potato root and biomass production with and without nitrogen fertilization
Journal Article 2006-10-15

Autor: Earl, J. Yan, L. Vitone, L.J. Risk, J. Kemp, Stephen J. McFaul, C. Neoptolemos, J.P. Greenhalf, W. Kress, R. Sina-Frey, M. Hahn, S. Rieder, H. Bartsch, D.K.

Background: Familial pancreatic cancer (FPC) describes a group of families where the inheritance of pancreatic cancer is consistent with an autosomal-dominant mode of inheritance. The 4q32-34 region has been previously identified as a potential locus for FPC in a large American family.

Enlace original: https://cgspace.cgiar.org/handle/10568/1872

Investigación en Agricultura
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Earl, J. ,  Yan, L. ,  Vitone, L.J. ,  Risk, J. ,  Kemp, Stephen J. ,  McFaul, C. ,  Neoptolemos, J.P. ,  Greenhalf, W. ,  Kress, R. ,  Sina-Frey, M. ,  Hahn, S. ,  Rieder, H. ,  Bartsch, D.K. ,  [Evaluation of the 4q32-34 Locus in European familial pancreatic cancer] ,  Evaluation of the 4q32-34 Locus in European familial pancreatic cancer
Journal Article 2017

Autor: Brocca, L. Crow, W.T. Ciabatta, L. Massari, C. Rosnay, P. de Enenkel, M. Hahn, S. Amarnath, Giriraj Camici, S. Tarpanelli, A. Wagner, W.

Remote sensing of soil moisture has reached a level of good maturity and accuracy for which the retrieved products are ready to use in real-world applications. Due to the importance of soil moisture in the partitioning of the water and energy uxes between the land surface and the atmosphere, a w...

Enlace original: https://cgspace.cgiar.org/handle/10568/81217

Investigación en Agricultura
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Brocca, L. ,  Crow, W.T. ,  Ciabatta, L. ,  Massari, C. ,  Rosnay, P. de ,  Enenkel, M. ,  Hahn, S. ,  Amarnath, Giriraj ,  Camici, S. ,  Tarpanelli, A. ,  Wagner, W. ,  [A review of the applications of ASCAT [ Advanced SCATterometer] soil moisture products] ,  A review of the applications of ASCAT [ Advanced SCATterometer] soil moisture products

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