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Book 2006

Autor: Chokkalingam, U. Zhou Zaichi Wang Chunfeng Toma, T.

Rehabilitation of degraded forest lands has been ongoing in China for centuries. Efforts intensified from the 1980s as forest resources became scarcer and environmental problems worsened. This report presents the main results of a study assessing past and ongoing rehabilitation efforts through a ...

Enlace original: https://cgspace.cgiar.org/handle/10568/19530

Investigación en Agricultura
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Chokkalingam, U. ,  Zhou Zaichi ,  Wang Chunfeng ,  Toma, T. ,  [Learning lessons from China’s forest rehabilitation efforts: national level review and special focus on Guangdong Province] ,  Learning lessons from China’s forest rehabilitation efforts: national level review and special focus on Guangdong Province
Journal Article 1987

Postharvest root deterioration or vascular streaking of cassava clones (accessions and breeding lines) was evaluated with harvests at different ages (8 and 12 mo.), seasons (beginning and end of wet season), and locations (CIAT-Palmira, Carimagua, and Caribia in Colombia) to assess the effect of environmental factors on cassava genotypes. Vascular streaking was sensitive to any of these environmental factors. Genotype x location interaction was highly significant suggesting that final cv. selection should be carried out in each location. Genetic analysis carried out in one location suggested that inheritance of vascular streaking was, at least partly, controlled by additive factors and was quantitative rather than qualitative. Narrow sense heritability of 0.64 was obtained. Vascular streaking was highly and significantly correlated with root DM content in all the trials conducted during 7 yr. Since free recombination between resistance to vascular streaking and high root DM content may not be possible, the most acceptable balance between these 2 traits should be defined according to the use of product and edaphoclimatic condition of production area prior to selection program. (AS)

Autor: Gabriel, C.J. Walsh, R Nolt, Barry L.

Several species of double-stranded RNA (dsRNA) were found to occur in the cassava clone Secundina, which was thought to be virus- free. A large dsRNA molecule (6.6 x 106 Mr = relative molecular mass)(L-dsRNA) was shown to be graft, but not mechanically transmitted and occurred primarily in a nucl...

Enlace original: https://cgspace.cgiar.org/handle/10568/65781

Investigación en Agricultura
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Gabriel, C.J. ,  Walsh, R ,  Nolt, Barry L. ,  [Postharvest root deterioration or vascular streaking of cassava clones (accessions and breeding lines) was evaluated with harvests at different ages (8 and 12 mo.), seasons (beginning and end of wet season), and locations (CIAT-Palmira, Carimagua, and Caribia in Colombia) to assess the effect of environmental factors on cassava genotypes. Vascular streaking was sensitive to any of these environmental factors. Genotype x location interaction was highly significant suggesting that final cv. selection should be carried out in each location. Genetic analysis carried out in one location suggested that inheritance of vascular streaking was, at least partly, controlled by additive factors and was quantitative rather than qualitative. Narrow sense heritability of 0.64 was obtained. Vascular streaking was highly and significantly correlated with root DM content in all the trials conducted during 7 yr. Since free recombination between resistance to vascular streaking and high root DM content may not be possible, the most acceptable balance between these 2 traits should be defined according to the use of product and edaphoclimatic condition of production area prior to selection program. (AS)] ,  Postharvest root deterioration or vascular streaking of cassava clones (accessions and breeding lines) was evaluated with harvests at different ages (8 and 12 mo.), seasons (beginning and end of wet season), and locations (CIAT-Palmira, Carimagua, and Caribia in Colombia) to assess the effect of environmental factors on cassava genotypes. Vascular streaking was sensitive to any of these environmental factors. Genotype x location interaction was highly significant suggesting that final cv. selection should be carried out in each location. Genetic analysis carried out in one location suggested that inheritance of vascular streaking was, at least partly, controlled by additive factors and was quantitative rather than qualitative. Narrow sense heritability of 0.64 was obtained. Vascular streaking was highly and significantly correlated with root DM content in all the trials conducted during 7 yr. Since free recombination between resistance to vascular streaking and high root DM content may not be possible, the most acceptable balance between these 2 traits should be defined according to the use of product and edaphoclimatic condition of production area prior to selection program. (AS)
Book 1980

Autor: Asher, CJ Edwards, D.G. Howeler, Reinhardt H.
Enlace original: https://cgspace.cgiar.org/handle/10568/69559

Investigación en Agricultura
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Asher, CJ ,  Edwards, D.G. ,  Howeler, Reinhardt H. ,  [Desórdenes nutricionales de la yuca (Manihot esculenta Crantz)] ,  Desórdenes nutricionales de la yuca (Manihot esculenta Crantz)
Journal Article 1990

Autor: Schmit, V. Debouck, Daniel G.
Enlace original: https://cgspace.cgiar.org/handle/10568/88687

Investigación en Agricultura
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Schmit, V. ,  Debouck, Daniel G. ,  [Phaseolus glabellus Piper, a noteworthy variant of the P. coccineus complex?] ,  Phaseolus glabellus Piper, a noteworthy variant of the P. coccineus complex?
Journal Article 2017-11

Autor: Omoigui, L.O. Kamara, A.Y. Ajeigbe, Hakeem A. Akinwale, R.O. Timko, M.P. Oyekunle, M. Bello, L.L.

Striga gesnerioides (Willd) Vatke, is a major destructive parasitic weed of cowpea (Vigna unguiculata (L.) Walp.) which causes substantial yield reduction in West and Central Africa. The presence of different virulent races within the parasite population contributes to significant genotype × envi...

Enlace original: https://cgspace.cgiar.org/handle/10568/89081

Investigación en Agricultura
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Omoigui, L.O. ,  Kamara, A.Y. ,  Ajeigbe, Hakeem A. ,  Akinwale, R.O. ,  Timko, M.P. ,  Oyekunle, M. ,  Bello, L.L. ,  [Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis] ,  Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis
Report 2015-12-18

Autor: Pham TS Hieu, Do Trong Hoan LK Quyen LN San LV Ferrer, Alice J. Yen, B.T. Sebastian, Leocadio S.

Ma village is one of the 15 villages of Vinh Kien commune, Yen Binh district, Yen Bai province in the northern mountainous region of Viet Nam. Ma village was selected as a site for the Climate Smart Village (CSV) development under the CGIAR Research Program on Climate Change, Agriculture and Food...

Enlace original: https://cgspace.cgiar.org/handle/10568/72437

Investigación en Agricultura
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Pham TS ,  Hieu, Do Trong ,  Hoan LK ,  Quyen LN ,  San LV ,  Ferrer, Alice J. ,  Yen, B.T. ,  Sebastian, Leocadio S. ,  [Situation Analysis and Needs Assessment Report for Ma Village and Yan Bai Province, Vietnam] ,  Situation Analysis and Needs Assessment Report for Ma Village and Yan Bai Province, Vietnam
Thesis 2002

Autor: Ngugi, I.K.

East Coast fever (ECF) is considered the most important livestock disease in Eastern Africa and makes producers unable to realize the potential benefit from the sub-sector. Use of vaccines could effectively control the disease. Given the anticipated benefits of ECF vaccines, this study has assess...

Enlace original: https://cgspace.cgiar.org/handle/10568/79507

Investigación en Agricultura
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Ngugi, I.K. ,  [Potential demand estimation of east coast fever vaccines in Makuyu division, Kenya: an application of contingent valuation and conjoint analysis.] ,  Potential demand estimation of east coast fever vaccines in Makuyu division, Kenya: an application of contingent valuation and conjoint analysis.
Thesis 1974

Autor: Leonard, David K.
Enlace original: https://cgspace.cgiar.org/handle/10568/79601

Investigación en Agricultura
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Leonard, David K. ,  [Organization theory for agricultural development agencies: an analysis of the management of Kenya's extensions agents.] ,  Organization theory for agricultural development agencies: an analysis of the management of Kenya's extensions agents.

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