Resultados de búsqueda - "Chang’an"

El biotipo B de Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae) adquiere mayor importancia en el Valle del Cauca = The B biotype of Bemisia tabaci (Homoptera: Aleyrodidae) beco... por Rodríguez Torres, Isaura Viviana, Morales, H, Bueno Mondragon, J.M., Cardona Mejía, César

“…A mix of T vaporariorum and biotype B was found in 14,6% of the samples The B biotype showed high levels of resistance to conventional insecticides and susceptibility to novel insecticides (neonicotinoids and insect growth regulators) The importance that these changes in species composition and biotypes of whitefly have to the regions agriculture are discussed.…”
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Modelo de optimización para los sistemas de producción agropecuarios de la microrregión Valle del Cesar, Colombia por Duarte Torres, O.A., Pulido Herrera, J.I., Silva Zalzuk, J, Holmann, Federico J.

“…Additionally, was evaluated the feasibility of applying new and improved technologies, The evaluation of the dual-purpose system included the introduction of Leucaena leucocephala as a protein bank of Angleton pastures and of mixed pastures like Angleton with Clitoria ternatea. Changes in calving and mortality rates were also evaluated by the model. …”
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CPWF Medium Term Plan (2009-2011) por CGIAR Challenge Program on Water and Food

“…This section provides an overview of these changes. In subsequent sections, we outline each of the seven MTP projects that are the basis of CPWF’s Second Phase. …”
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Improving the productivity of crop-livestock systems under trypanosomosis risk in West Africa: Potentials and opportunities in the next decade por Kamuanga, M., D'Ieteren, G.D.M., Tano, K., Mugalla, C., Pokou, K., Swallow, B.M.

“…Indirectly, this will lead to an increase in the value of crops and livestock produced, particularly through changes in the number of draft animals available for traction. …”
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Milk recording and herd registration in Ethiopia: An essential step towards genetic improvement for milk production por Tegegne, Azage, Redda, T., Gebre-Wold, A., Ketema, H.

“…It has to be understood that the Development of a milk recording scheme is a dynamic process and will have to be upgraded through time in response to changing internal and external circumstances.…”
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Effectiveness of technological options for minimising production risks under variable climatic conditions in eastern Uganda por Kansiime, KM, Shisanya, Chris A., Wambugu, KS

“…Most of the technologies showed significant positive impacts on mean yield, but had different risk-reducing effects on yield. Changing sowing dates and crop varieties, soil bunds, compost manure, cover crops, crop rotation and intercropping showed significant (P<0.05) risk-reducing effects on yield. …”
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Advances in improving tolerance to waterlogging in Brachiaria grasses por Cardoso Arango, Juan Andrés, Jiménez, Juan, Rincón, Joisse D., Guevara, Edward D., Hoek, Rein van der, Jarvis, Andy, Peters, Michael, Miles, John W., Ayarza, Miguel Angel, Cajas, Socorro, Rincón, Álvaro, Mateus, Henry, Quiceno, Jaime, Barragán, Wilson, Lascano Aguilar, Carlos Eduardo, Argel M., Pedro J., Mena Urbina, Martin A., Hertentains, Luis, Rao, Idupulapati M.

“…The main objective of an inter-institutional and multidisciplinary project was to identify Brachiaria hybrids combining waterlogging tolerance with high forage yield and quality to improve meat and milk production and mitigate the impacts of climate change in the humid areas of Latin America. Researchers at the Centro Internacional de Agricultura Tropical (CIAT) have developed a screening method to evaluate waterlogging tolerance in Brachiaria. …”
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Analysis of factors influencing yield variability of major crops in China por Guo L, Andreas W, Yu HY, Xiu JC

“…To ensure agricultural production security, more attention should be paid to enhance the per unit area yield of crops together with the impact of climate change on yields.…”
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Global versus local environmental impacts of grazing and confined beef production systems por Modernel P, Astigarraga L, Picasso V

“…Carbon footprint is a key indicator of the contribution of food production to climate change and its importance is increasing worldwide. …”
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Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane por Silva Olaya, A.M., Cerri, Carlos Eduardo, La Scala, Newton, Dias, C.T.S., Cerri, C.C.

“…The amount of C lost in the form of CO2 due to soil tillage practices was significant and comparable to the estimated value of potential annual C accumulation resulting from changes in the harvesting system in Brazil from burning of plant residues to the adoption of green cane harvesting. …”
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Mapping the global distribution of livestock por Robinson, Timothy P., Wint, G.R.W., Conchedda, Giulia, Boeckel, Thomas P. van, Ercoli, V., Palamara, E., Cinardi, G., D'Aietti, L., Hay, S.I., Gilbert, M.

“…These include analyses of the social and economic aspects of the livestock sector; the environmental impacts of livestock such as the production and management of waste, greenhouse gas emissions and livestock-related land-use change; and large-scale public health and epidemiological investigations. …”
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ILRI annual report 2007: markets that work - making a living from livestock por International Livestock Research Institute

“…Topics of discussion in chapter 3, Southern Africa, include ILRI in Southern Africa: the context and priorities for engagement; reducing the vulnerability of livestock peoples of southern Africa: saving lives and livelihoods; coping strategies and endgames; commercializing livestock markets in drought-prone southern Africa; livestock-based adaptations to climate change; early detection, response and surveillance for avian influenza in Africa; and foot-and-mouth disease global 'roadmap' launched to help developing-country farmers. …”
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The species-specific crop ontology (Generation Challenge Programme): Application and integration into the reference plant trait ontology to enable data mining on phenotypes. por Arnaud, Elizabeth, Shrestha, R., Kulakow, Peter A., Bakare, M., López Montes, Antonio José, Ofodile, S., Reddy T.P., Prasad, P., Shah, Tushaar, Hash, C.T., Weltzien, Eva, Sissoko, I., Guerrero, Alberto F., Simon, R., Borja Borja, N.F., Ramil, M., Matteis, L., Skofic, M., Hazekamp, T., McLaren, G., Cooper, Laurel D., Jaiswal, P., Menda, N., Nelson, R., Grant, D., Bastow, R., Mueller, L., Rami, J.F.

“…The CO acts as a trait name server for various sites and databases: the Genotyping Data Management System (GDMS); the cassava database at Cornell University (http://cassavadb.org); Agtrials, the Global Repository for Evaluation Trials of Climate Change, Agriculture and Food Security (CCAFS), a CGIAR Research Program (http://agtrials.org ); and the EU-Sol BreedDB website (https://www.eu-sol.wur.nl/). …”
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A Simple Sequence Repeat (SSR) marker comparison of a large in- and ex-situ potato landrace cultivar collection from Peru reaffirms the complementary nature of both conservation st... por Haan, Stef de, Nunez, J., Bonierbale, Merideth W., Ghislain, M., Maesen, J. van der

“…Results affirm that crop evolution is an ongoing phenomenon and that change in fixed geographies is occurring.…”
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Snow cover trend and hydrological characteristics of the Astore River basin (Western Himalayas) and its comparison to the Hunza basin (Karakoram region) por Tahir, A.A., Chevallier, P., Arnaud, Y., Ashraf, M., Bhatti, Muhammad Tousif

“…Studying the snow cover, its spatiotemporal change and the hydrological response of these sub-basins is important so as to better managewater resources. …”
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Targeting conservation agriculture in the context of livelihoods and landscapes por Rosenstock, Todd S., Mpanda, Mathew, Rioux, J., Aynekulu, Ermias, Kimaro, Anthony A., Neufeldt, Henry, Shepherd, Keith D., Luedeling, Eike

“…When using site-specific, socio-economic, and biophysical data, mean changes in yield were more negative (−1.29 and −1.34 Mg ha−1 year−1). …”
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Ex Situ conservation priorities for the wild relatives of Potato (Solanum L. Section Petota) por Castañeda Álvarez, Nora P., Haan, Stef de, Juarez, H., Khoury, Colin K., Achicanoy Estrella, Harold Armando, Sosa, Chrystian C., Bernau, V., Salas, A., Heider, B., Simon, R., Maxted, Nigel, Spooner, D.M.

“…As these plants are impacted in the wild by habitat destruction and climate change, actions to ensure their conservation ex situ become ever more urgent. …”
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The development of lean muscle, bone and fat in the West African Dwarf goat of Nigeria maintained on good plane of nutrition por Awah, A.A., Adeleye, I.O.A.

“…Six animals (3 males and 3 females) were serially slaughtered at 2, 8, 12, 24 and 52 weeks of age to study changes in live weight and the development of lean muscle, bone and fat. …”
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Genetic and environmental effects on age at first calving and calving interval of naturally bred Boran(zebu) cows in Ethiopia por Haile-Mariam, M., Kassa-Mersha, H.

“…Year and season had significant effects on both traits. The annual genetic change for both traits was not significant while the solutions for year effects were highly variable. …”
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Assessing temporal variation in crop wild relative genetic diversity based on past collecting missions por Thormann, I., Dulloo, Mohammad Ehsan

“…Knowledge about contemporary evolutionary processes, adaptive responses to climate change, and trends in genetic diversity status should support the identification of target populations for in situ management and monitoring actions. …”
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