Resultados de búsqueda - "history"

A synthesis of results achieved from October 1981 - April 1984 and some indications for future research por Cisse, M.I.

“…Briefly outlines the ILCA semi arid zones programme's history and research achievements in livestock production systems, pasture ecology, animal health, animal nutrition and plant ecology in Mali; indicates future research programmes.…”
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Livestock development in Nigeria, 1914-1979: A brief historical review por Walker, D.A.W.

“…A brief account of the history of the development of livestock production in Nigeria, which is closely related to the development of veterinary services, emphasizing the significance of rinderpest in this development. …”
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Major challenges to agricultural development mark CTA's first decade por Technical Centre for Agricultural and Rural Cooperation

“…Ten years have passed since CTA's first staff members were appointed. In the history of what we nowadays call 'development', and of the young nations of the ACP Group, ten years is a relatively long period. …”
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Institutionalizing inequities in land ownership and water allocations during colonial times in Punjab, Pakistan por Farooqi, Hira, Wegerich, Kai

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Shoot tip culture for the propagation, conservation and exchange of Musa germplasm por Vuylsteke, D.R.

“…This publication reviews in detail the history of shoot-tip culture of Musa, in vitro propagation procedures, in vitro conservation, germplasm exchange using in vitro cultures and potential problems.…”
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CIMMYT - Proposed Five Year Plan, 1971-1975 por International Maize and Wheat Improvement Center

“…Document discussed by CIMMYT Board in September 1970. Includes a brief history of CIMMYT and identification of new factors influencing the center's expanding operations and changes to its existing programs, including increased emphasis on the problems of small farmers who have thus far not benefited from CIMMYT generated "green revolution" technologies. …”
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Gender Issues in the CGIAR System: Lessons and Strategies from Within por Poats, Susan V.

“…Paper by Susan Poats on the history of gender issues in the CGIAR System, and the status of attention to these issues at different IARCs. …”
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Comparative phylogeography of Aedes mosquitoes and the role of past climatic change for evolution within Africa por Bennett, K.L., Kaddumukasa, M., Shija, F., Djouaka, R., Misinzo, G., Lutwama, J., Linton, Y.M., Walton, C.

“…This congruence in evolutionary history is likely to relate to historical climate‐driven habitat change within Africa during the late Pleistocene and Holocene epoch. …”
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Ethiopian indigenous goats offer insights into past and recent demographic dynamics and local adaptation in sub-Saharan African goats por Mekuriaw, Getinet, Khayatzadeh, N., Liu, B., Osama, S., Haile, Aynalem, Rischkowsky, Barbara A., Zhang, W., Tesfaye, K., Dessie, Tadelle, Okeyo Mwai, Ally, Djikeng, Appolinaire, Mwacharo, Joram M.

“…Ethiopia is in a geographic region that has been critical in the history of African agriculture with ancient and diverse human ethnicity and bio‐climatic conditions. …”
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The size at reproduction of canopy tree species in central Africa por Ouédraogo, D-Y., Doucet, J-L., Daïnou, K., Baya, F., Biwolé, A.B., Bourland, N., Fétéké, F., Gillet, J.F., Kouadio, Y.L., Fayolle, A.

“…Size at reproduction is a key aspect of species life history that is relatively understudied for long‐lived tropical trees. …”
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Matches and mismatches between the global distribution of major food crops and climate suitability por Mahaut, Lucie, Pironon, Samuel, Barnagaud, Jan-Yves, Bretagnolle, Francois, Khoury, Colin K., Mehrabi, Zia, Milla, Ruben, Philipps, Charlotte, Rieseberg, Loren H., Violle, Cyrille, Renard, Delphine

“…Over the course of history, humans have moved crops from their regions of origin to new locations across the world. …”
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Bangladesh, Commercial Vegetable and Polyculture Fish Production 1996-1997 por International Food Policy Research Institute

“…Topics in the household survey include income, household value of consumed goods; social capital; shock history; credit given and obtained; inheritance/assets at wedding/divorce; family background; health care and birth control use; household sanitation behavior; reproductive history and mortality; nutrition knowledge; food preferences; women's autonomy and decision making. …”
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All eggs in one basket: A reflection on Malawi’s dependence on agricultural growth strategy por Droppelmann, Klaus, Makuwira, Jonathan, Kumwenda, Ian

“…Malawi is a country with a complex history of rural-urban transformation. On one hand, Malawi has long been, and still is, a predominantly agrarian economy that has seemingly undergone relatively little rural-urban transformation. …”
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Evolution and diversity of the wild rice Oryza officinalis Complex, across continents, genome types, and ploidy levels por Shenton, Matt, Kobayashi, Masaaki, Terashima, Shin, Ohyanagi, Hajime, Copetti, Dario, Hernández-Hernández, Tania, Zhang, Jianwei, Ohmido, Nobuko, Fujita, Masahiro, Toyoda, Atsushi, Ikawa, Hiroshi, Fujiyama, Asao, Furuumi, Hiroyasu, Miyabayashi, Toshie, Kubo, Takahiko, Kudrna, David, Wing, Rod, Yano, Kentaro, Nonomura, Ken-ichi, Sato, Yutaka, Kurata, Nori

“…We provide a detailed phylogeny and evolutionary history of the Oryza C genomes, and a genomic resource for the exploitation of the Oryza tertiary gene pool.…”
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Machine learning reveals spatiotemporal genome evolution in Asian rice domestication por Ohyanagi, Hajime, Goto, Kosuke, Negrão, Sónia, Wing, Rod A., Tester, Mark A., McNally, Kenneth L., Bajic, Vladimir B., Mineta, Katsuhiko, Gojobori, Takashi

“…From the correspondence between our wide IRs and the so-called selective sweep regions, we provide a definitive answer to a long-standing controversy over the evolutionary origin of Asian rice domestication, single or multiple origins: It heavily depends upon which regions you pay attention to, implying that wider genomic regions represent immediate short history of Asian rice domestication as a likely support to the single origin, while its ancient history is interspersed in narrower traces throughout the genome as a possible support to the multiple origin.…”
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The complex geography of domestication of the African rice Oryza glaberrima por Choi, Jae Young, Zaidem, Maricris, Gutaker, Rafal, Dorph, Katherine, Singh, Rakesh Kumar, Purugganan, Michael D.

“…While the domestication history of Asian rice has been extensively studied, details of the evolution of African rice remain elusive. …”
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Invasive alien plant litter influences larval density, size and survival of Culex spp. por Chiuya, Tatenda, Fèvre, Eric M., Lutomiah, J., Mutisya, J., Mulwa, F., Chelangat, B., Muhoro, S., Olubowa, R., Junglen, S., Borgemeister, C.

“…Our study demonstrates the impact of IAPs on the life history traits of mosquitoes and how they can enhance their vectorial capacity. …”
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Droits fonciers coutumiers et autonomie regionale a Kalimantan a Kalimantan-Est (Indonesie): entre enjeux de pouvoir et contrôle de l’accès aux ressources. por Levang, P., Buyse, N.

“…The recourse to history and the research of archaeological vestiges have only one goal: to prove the antecedence of the occupation of the territory, and thus to justify the demands of royalties for the exploitation of natural resources.…”
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Phylogeographic analysis of the chloroplast DNA variation in wild common bean (Phaseolus vulgaris L.) in the Americas por Chacón Sánchez, María I., Pickersgill, B, Debouck, Daniel G., Arias, J.S.

“…In this research, chloroplast DNA polymorphisms in seven non-coding regions were used to study the history of migration of wild P. vulgaris between Mesoamerica and South America. …”
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Congruent phylogeographic patterns of eight tree species in Atlantic Central Africa provide insights on the past dynamics of forest cover por Dauby, G., Duminil, J., Heuertz, M., Koffi, G.K., Stevart, T., Hardy, Olivier J.

“…By contrast, southern ACA (Gabon) displayed low congruence among species that may reflect less drastic past forest fragmentation or a more complex history of vegetation changes. Finally, we also highlight the potential impact of current environmental barriers on spatial genetic structures.…”
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