Resultados de búsqueda - "Decadence"

Seed exchange networks for agrobiodiversity conservation. A review por Pautasso, M., Aistara, G., Barnaud, Adéline, Caillon, S., Clouvel, P., Coomes, O.T., Deletre, M., Demeulenaere, E., Santis, P. de, Doring, T., Eloy, L., Emperaire, L., Garine, E., Goldringer, I., Jarvis, D., Joly, H.I., Leclerc, Christian, Louafi, S.

“…Whereas agrobiodiversity conservation has received much attention from researchers and policy makers over the last decades, the methods available to study the role of seed exchange networks in preserving crop biodiversity have only recently begun to be considered. …”
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Spatial and temporal pattern of Rift Valley fever outbreaks in Tanzania; 1930 to 2007 por Sindato, C., Karimuribo, E.D., Pfeiffer, Dirk U., Mboera, L.E.G., Kivaria, F., Dautu, G., Bett, Bernard K., Paweska, J.T.

“…Background Rift Valley fever (RVF)-like disease was first reported in Tanzania more than eight decades ago and the last large outbreak of the disease occurred in 2006–07. …”
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Selection of provenances to adapt tropical pine forestry to climate change on the basis of climate analogs por Leibing, C., Signer, J., Zonneveld, M. van, Jarvis, Andy, Dvorak, W.

“…Pinus patula and Pinus tecunumanii play an important role in the forestry sector in the tropics and subtropics and, in recent decades, members of the International Tree Breeding and Conservation Program (Camcore) at North Carolina State University have established large, multi-site provenance trials for these pine species. …”
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Formal water rights in rural Tanzania: deepening the dichotomy? por van Koppen, Barbara, Sokile, C.S., Hatibu, N., Lankford, B.A., Mahoo, H.F., Yanda, P.Z.

“…In the past decade the Tanzanian government, with a loan from the World Bank, designed and implemented a new administrative water rights system with the aim of improving basin-level water management and cost-recovery for government water-resource management services. …”
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A framework for coupling land use and hydrological modelling for management of ecosystem services por Kwast, J. van der, Yalew, S., Dickens, C., Quayle, L., Reinhardt, J., Liersch, S., Mul, Marloes L., Hamdard, M., Douven, W.

“…The sophisticated spatial dynamic planning tools that have been developed in the last decades to support policy makers in the decision making process do not take into account the mutual feedbacks between land use and hydrology. …”
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A landscape planning and management tool for land and water resources management: an example application in northern Ethiopia por Tamene, Lulseged D., Bao Le Quang, Vlek, Paul L.G.

“…Although many soil/water-landscape studies have been published in the last 2 decades, progress in developing operational tools for supporting landscape planning to minimize land and water degradation in developing regions is still modest. …”
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Participatory research for development to upgrade smallholder pig value chains in Uganda por Ouma, Emily A., Roesel, Kristina, Dione, Michel M., Carter, N., Pezo, Danilo A., Ejobi, F., Grace, Delia

“…Very little has been documented about how pig value chains operate in Uganda, except that pork consumption has exploded over the past three decades and is foremost in sub-Sahara Africa today. …”
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Lessons learned from the Boran Cattle Improvement Programme at Adami Tulu and Abernossa Cattle Multiplication and Improvement Centre in Ethiopia por Tegegne, Azage

“…It is intended to analyse and document the activities of the center and use the experiences of the center over the last three decades as a springboard for future livestock breed improvement efforts in the country. …”
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Herbivore dynamics and range contraction in Kajiado County Kenya: Climate and land use changes, population pressures, governance, policy and human-wildlife conflicts por Ogutu, Joseph O., Piepho, Hans-Peter, Said, Mohammed Yahya, Kifugo, S.C.

“…Our findings point to recurrent droughts, intensifying human population pressures, land use changes and other anthropogenic impacts, decades of ineffective or failed government policies, legislations, law enforcement, management institutions and strategies as the salient causes of the declines and range compressions. …”
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Genomic saturation mutagenesis and polygenic analysis identify novel yeast genes affecting ethyl acetate production, a non-selectable polygenic trait por Abt, Tom den, Souffriau, Ben, Foulquié Moreno, Maria R., Duitama, Jorge, Thevelein, Johan

“…Isolation of mutants in populations of microorganisms has been a valuable tool in experimental genetics for decades. The main disadvantage, however, is the inability of isolating mutants in non-selectable polygenic traits. …”
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Genotyping the local banana landrace groups of East Africa por Karamura, D., Kitavi, M., Nyine, M., Ochola, D., Ocimati, W., Muhangi, S., Talengera, D., Karamura, E.B.

“…Crop landraces (largely resulting from adaptation and continuous selection by farmers) are more diverse within field populations than modern cultivars (produced by deliberate crossing), yet their distribution has continued to shrink in the past decades. The temporal dynamics of this shrinking is little known. …”
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Effective use of water and increased dry matter partitioned to grain contribute to yield of common bean improved for drought resistance por Polanía Perdomo, José A., Poschenrieder, Charlotte, Beebe, Stephen E., Rao, Idupulapati M.

“…Field studies were conducted at the International Center for Tropical Agriculture (CIAT), Palmira, Colombia, to determine the relationship between grain yield and different parameters such as effective use of water (EUW), canopy biomass, and dry partitioning indices (pod partitioning index, harvest index, and pod harvest index) in elite lines selected for drought resistance over the past decade. Carbon isotope discrimination (CID) was used for estimation of water use efficiency (WUE). …”
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Changes in soil chemical properties under two contrasting plantation systems on the Zululand coastal plain, South Africa por Noble, A.D., Berthelsen, S., Mather, J.

“…Over the past 4 decades there has been considerable expansion in the plantation forestry along the eastern seaboard of South Africa. …”
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How good is good enough? Data requirements for reliable crop yield simulations and yield-gap analysis por Grassini, Patricio, Bussel, Lenny G. J. van, Wart, Justin van, Wolf, Joost, Claessens, Lieven, Yang, Haishun, Boogaard, H., Groot, Hugo de, Ittersum, Martin K. van, Cassman, Kenneth G.

“…Numerous studies have been published during the past two decades that use simulation models to assess crop yield gaps (quantified as the difference between potential and actual farm yields), impact of climate change on future crop yields, and land-use change. …”
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Resilience and development: mobilizing for transformation por Bousquet, Francois, Botta, Aurélie, Alinovi, Luca, Barreteau, Olivier, Bossio, Deborah A., Brown, Katrina, Caron, Patrick, D'Errico, Marco, DeClerck, Fabrice A.J., Dessard, Hélène, Kautsky, Elin Enfors, Fabricius, Christo, Folke, Carl, Fortmann, Louise, Hubert, Bernard, Magda, Danièle, Mathevet, Raphael, Norgaard, Richard B., Quinlan, Allyson, Staver, Charles

“…Social transformations and scientific approaches are coconstructed. For the last decades, development has been conceived as a modernization process supported by scientific rationality and technical expertise. …”
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Economic gain and other losses? Gender relations and matooke production in Western Uganda por Rietveld, Anne M., Ajambo, S., Kikulwe, Enoch Mutebi

“…Over the past decades cooking-banana (Matooke) has become increasingly important as food and especially as cash crop for farm households in Isingiro district in the western region of Uganda. …”
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How is innovation in aquaculture conceptualized and managed? A systematic literature review and reflection framework to inform analysis and action por Joffre, Olivier M., Klerkx, Laurens, Dickson, Malcolm, Verdegem, Marc

“…Aquaculture has experienced spectacular growth in the past decades, during which continuous innovation has played a significant role, but it faces increasing criticism regarding its ecological and social sustainability practices and the resulting challenges for future innovation processes. …”
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Cassava agronomy research in Asia: Has it benefitted cassava farmers? por Howeler, Reinhardt H.

“…During the past decade (1990-2000) the area planted to cassava in most countries in Asia has generally decreased, while production has remained stable or also decreased. …”
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Biological controls for aflatoxin reduction por Bandyopadhyay, Ranajit, Cotty, Peter J.

“…A biological control technique that greatly reduces aflatoxin contamination of susceptible crops has been developed by USDA-ARS and is used commercially in the U.S. Over the past decade, USDA-ARS with the International Institute of Tropical Agriculture, has sought to adapt the biological control technology for use in Africa. …”
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Redesigning Delivery: Boosting Adoption of Coffee Management Practices in Uganda. The climate smart investment pathway approach and the farmer segmentation tool por Jassogne, Laurence T.P., Mukasa, David, Bukomeko, Hannington, Kemigisha, Elizabeth, Kirungi, Diana, Giller, Onno, Asten, Piet J.A. van

“…Nevertheless, coffee yields have stagnated for over a decade, despite concerted efforts to improve productivity. …”
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