Resultados de búsqueda - "thought"

Detecting cumulative effects of inputs within the flexible production function framework through LASSO shrinkage estimation: Implications for potassium fertilizer use in India por Takeshima, Hiroyuki, Kishore, Avinash

“…Our results support earlier agronomic findings suggesting that the cumulative effects of potassium may be relevant across wider geographic regions than previously thought.…”
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Tackling irrigation development and water management crises in Africa por Zemadim, Birhanu, Haileslassie, Amare, Dirwai, Tinashe Lindel, Gebrezgabher, Solomie A., Akpoti, Komlavi, Osei-Amponsah, Charity, Cofie, Olufunke O., Hafeez, Mohsin, Smith, Mark

“…In most cases, the actual size of state-led irrigable land realized has been significantly smaller than planned, resulting in smaller plot allocations than theoretically thought possible. This has negatively impacted poverty alleviation and food security efforts, where farmer-led irrigation development (FLID) is only beginning to emerge. …”
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Mediated pleiotropy drives the negative correlation of total carotenoid and dry matter contents in cassava (Manihot esculenta) por Villwock, S.S., Parkes, E., Mbanjo, E., Rabbi, I.Y., Jannink, J

“…While genetic linkage between a major-effect variant in the phytoene synthase 2 (PSY2) gene and nearby candidate gene(s) has been thought to drive this correlation, molecular evidence suggests there may be a metabolic relationship between total carotenoid and dry matter, implying genome-wide pleiotropic effects. …”
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Advancing human nutrition without degrading land resources through modeling cropping systems in the Ethiopian highlands por Amede, Tilahun, Stroud, Ann, Aune, JB

“…Food shortage in sub-Saharan Africa is generally considered a function of limited access to food, with little thought to nutritional quality. Analyzing household production of nutrients across farming systems could be valuable in guiding the improvement of those systems. …”
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Influence of driver ant swarm raids on earthworm prey densities in the Mount Kenya forest: implications for prey population dynamics and colony migrations por Schöning, C., Csuzdi, C., Kinuthia, W., Ogutu, Joseph O.

“…Colonies of certain driver ant species have a biomass which can equal that of medium-sized mammalian carnivores and the ultimate cause of their nomadic life-style is thought to be local prey depletion. The impact of driver ant swarm raids is therefore expected to be strong but the degree to which they reduce prey populations has not been quantified and it is unknown whether these spectacular predators exert significant top-down effects. …”
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A linkage map of cassava (Manihot esculenta Crantz) based on RFLP and RAPD markers por Fregene, Martin A., Angel, F., Gómez, R., Rodríguez, F., Maya, M.M., Bonierbale, Merideth W., Tohme, Joseph M., Iglesias, C.A.

“…Segregation of the markers revealed a predominantly disomic mode of inheritance in cassava, otherwise thought to be an allopolyploid. Efforts continue to saturate the map and develop genetic stocks with segregating traits of interest to obtain tightly linked markers to these traits is being carried out. …”
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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 (beginn... por 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 nuclear-rich fraction isolated from dsRNA-containing Secundina plants. …”
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Integrated assessment of groundwater use for improving livelihoods in the dry zone of Myanmar por Pavelic, Paul, Senaratna Sellamuttu, Sonali, Johnston, Robyn M., McCartney, Matthew P., Sotoukee, Touleelor, Balasubramanya, Soumya, Suhardiman, Diana, Lacombe, Guillaume, Douangsavanh, Somphasith, Joffre, Olivier M., Latt, K., Zan, A.K., Thein, K., Myint, A., Cho, C., Htut, Y.T.

“…Replenishable groundwater resources of the Dry Zone are likely to be less than previously thought. Thus, it is important to find the right balance between increasing development of the resource for enhanced irrigation, while also protecting its existing beneficial use for communities and the environment.…”
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Crop wild relatives of the brinjal eggplant ( Solanum melongena ): poorly represented in genebanks and many species at risk of extinction por Syfert, Mindy M., Castañeda Álvarez, Nora P., Khoury, Colin K., Särkinen, Tiina, Sosa, Chrystian C., Achicanoy Estrella, Harold Armando, Bernau, V., Prohens, Jaime, Daunay, Marie-Christine, Knapp, Sandra

“…Despite this need, the world's genebanks are currently thought to conserve only a small fraction of the total diversity of CWR. …”
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Implementing a framework for action to assess research impact: Case studies on impact assessment from two global research projects of the International Water Management Institute (... por Bhatt, Yogesh

“…This paper discusses IWMI’s Framework for Action to assess research impacts, describes a logical thought process for considering nature and scale of desired impacts and the pathways for impact achievement, and outlines a methodology for practical impact assessment. …”
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Population regulation of African buffalo in the Mara–Serengeti ecosystem por Dublin, H.T., Ogutu, Joseph O.

“…Following reduction of rinderpest and buffalo population increase, interspecific competition for food, notably with cattle and wildebeest (Connochaetes taurinus Burchell), was thought to be the primary regulatory factor in the ecosystem. …”
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Identification of Bola Class I molecules restricting cytotoxic T lymphocyte responses to a theileria parva vaccine candidate. por Mwakubambanya, R.S.

“…A robust immunity against ECF acquired after recovery is thought to be conferred by cytotoxic T lymphocytes (CTLs) specific to schizontinfected lymphocytes. …”
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Genetic structure and origin of Busseola fusca (Fuller) (Lepidoptera, Noctuidae) populations in Cameroon por Sezonlin, M., Ndemah, R., Goergen, Georg E., Le Rü, B., Dupas, S., Silvain, J.

“…Comparison of cytochrome b sequences using the samemarker revealed low mitochondrial diversity (h = 0.483 ± 0.054, p = 0.073 ± 0.061%).Moreover, molecular diversity in the Guineo-Congolian rain forest zone was lower than that in Afromontane vegetation, which is therefore thought to be the likely starting point for the colonization of other zones in Cameroon. …”
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Regional variation in suicide rates in Sri Lanka between 1955 and 2011: a spatial and temporal analysis por Knipe, D.W., Padmanathan, P., Muthuwatta, Lal P.

“…Changes in access to highly toxic pesticides are thought to have influenced this pattern. This study investigates variation in suicide rates across Sri Lanka’s 25 districts between 1955 and 2011. …”
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Characterization of an 18,166 EST dataset for cassava (Manihot esculenta Crantz) enriched for drought responsive genes por Lokko, Y., Anderson, J., Rudd, S., Raji, A., Horvath, D., Mikel, M.A., Kim, R., Liu, L., Hernández, A., Dixon, A., Ingelbrecht, I.L.

“…The dehydration-stressed library uncovered numerous ESTs with recognized roles in drought-responses, including those that encode late-embryogenesis-abundant proteins thought to confer osmoprotective functions during water stress, transcription factors, heat-shock proteins as well as proteins involved in signal transduction and oxidative stress. …”
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Current characteristics of cassava mosaic in postepidemic areas increase the range of possible management options por Mallowa, S., Isutsa, D., Kamau, A., Obonyo, R., Legg, James P.

“…The abundance of whiteflies on the top five leaves of plants was low in 2003 but high in 2004, with means of 1 and 16, respectively, over the same seven divisions in both years, although this variation was thought to be because of seasonal factors. EastAfrican cassava mosaic virus-Uganda was the predominant geminivirus present in every division. …”
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Coming down from the trees: is terrestrial activity in Bornean orangutans natural or disturbance driven? por Ancrenaz, M., Sollmann, R., Meijaard, E., Hearn, A.J, Ross, J, Samejima, H, Loken, B, Cheyne, S.M, Stark, D.J, Gardner, P.C, Goossens, B., Mohamed, A, Bohm, T, Matsuda, I, Nakabayasi, M, Lee, S.K, Bernard, H., Brodie, J., Wich, S., Fredriksson, G.M., Hanya, G, Harrison, M.E., Kanamori, T, Kretzschmar, P, MacDonald, D.W., Riger, P, Spehar, S, Ambu, L.N., Wilting, A.

“…This suggests that terrestrial locomotion is part of the Bornean orangutan's natural behavioural repertoire to a much greater extent than previously thought and is only modified by habitat disturbance. …”
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Conventional breeding strategies to enhance the sustainability of Musa biodiversity conservation for endemic cultivars on farm por Pillay, M., Ssebuliba, R., Hartman, J., Vuylsteke, D.R., Talengera, D., Tushemereirwe, Wilberforce K.

“…By crossing diverse genotypes, producing new populations and selecting improved genotypes, conventional breeding has the potential of increasing banana diversity at the farm level. It is thought that adoption of modern cultivars by farmers could lead to genetic erosion of landraces. …”
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Simulations of growth, development and yield of maize in the transition zone of Nigeria por Jagtap, S.S., Mornu, M., Kang, B.

“…The maize model is designed to simulate plant physiological processes (nutrient and water uptake, transpiration, photosynthesis, organogenesis and biomass partitioning), and predict growth, development and yield in daily time steps in a manner similar to the processes as they are thought to occur in the real plant. An adequately tested and validated crop model with known genetic constants for varieties could be a time and money saving tool, useful for studying response of varieties in constrasting environments and management practices. …”
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Metagenomic analysis of plant virus occurrence in common bean (Phaseolus vulgaris) in central Kenya por Mutuku, Josiah M., Wamonje, Francis O., Mukeshimana, Gerardine, Njuguna, Joyce N., Wamalwa, M., Choi, S.K., Tungadi, T., Djikeng, Appolinaire, Kelly, K., Domelevo Entfellner, Jean-Baka, Ghimire, Sita R., Mignouna, Hodeba D., Carr, J.P., Harvey, Jagger J.W.

“…The detection of PvEV1 and 2 suggests these seed transmitted viruses may be more prevalent in Eastern African bean germplasm than previously thought.…”
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