Search Results - "pressure"

Determinants of agricultural and land management practices and impacts on crop production and household income in the highlands of Tigray, Ethiopia by Pender, J.L., Gebremedhin, Berhanu

“…Several factors commonly hypothesised to have a major impact on land management and agricultural production—including population pressure, small landholdings, access to roads and irrigation and extension and credit programmes—are found to have limited direct impact on crop production and income, though most affect the intensity of production. …”
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Econometric analysis of the determinants of adoption of alley farming by farmers in the forest zone of southwest Cameroon by Adesina, A.A., Mbila, D., Nkamleu, G.B., Endamana, D.

“…Adoption is lower for farmers in areas with very high population pressure, as farmers in such areas may have greater labor productivity from use of less labor intensive natural resource management technologies like chemical fertilizers. …”
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Woodfuel in a global change context by Gazull, L., Gautier, D.

“…However, despite concerns surrounding woodfuel, we argue that the extent of the energy demand to be met and the pressure from new private industrial players will oblige the forestry sector to broaden its position. …”
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Serial analysis of gene expression (SAGE) of hostplant resistance to the cassava mosaic disease (CMD) by Fregene, Martin A., Matsumura, H., Akano, A., Dixon, A., Terauchi, R.

“…Messenger RNA used for the SAGE analysis came from plants that were exposed to heavy disease pressure over a period of 2 years in the field. A total of 12,786 tags were studied, divided into 5733 and 7053 tags from the resistant and susceptible genotypes, respectively. …”
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Antimicrobial resistance in South East Asia: Time to ask the right questions by Kakkar, M., Chatterjee, P., Chauhan, A.S., Grace, Delia, Lindahl, Johanna F., Beeche, A., Jing, F., Chotinan, S.

“…The main driving force behind the emergence of AMR is selection pressure created due to consumption of antibiotics. …”
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Evaluation of selection strategies alternative to nptII in genetic transformation of citrus by Ballester, Alida, Cervera, Magdalena, Pena, Leandro

“…The neomycin phosphotransferase (nptII) selection system has proved successful in citrus transformation; however, it may be recommendable to replace it given the pressure exerted against antibiotic-resistance selectable marker genes in transgenic plants. …”
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Prediction of the soil saturated paste extract salinity from extractable ions, cation exchange capacity, and anion exclusion by Visconti, Fernando, De-Paz, José M.

“…Therefore, best estimates of saturation paste extract properties occurred after taking into account the following: (i) free equilibration of the soil solution with the minerals calcite and gypsum under CO2 partial pressure of the saturated paste; (ii) further equilibration of the soil solution with the exchange complex; and (iii) determination of salt contents within the diffuse double layer (DDL) of the soil colloids, i.e. the anion exclusion. …”
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Trends in Varietal Composition in Spanish Citrus-Growing and Underlying Variables by Caballero, Pedro, Carmona, Belinda, Alcón, Francisco J., Fernández-Zamudio, María A., De-Miguel, María D.

“…In relation to changes in varietal composition, it is of interest the introduction of new cultivars of the clemenules group (‘Orogrande’, ‘Nulessin’), navel (‘Powell’, ‘Rohde’, ‘Barnfield’, ‘Chislett’ and ‘Fukumoto’) and Valencia (‘Barberina’, ‘Midknight’, ‘Valencia Late’ Frost and ‘Delta Seedless’). There is constant pressure to supply new early clementines cultivars, but their survival is usually short. …”
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Field trials of plum clones transformed with the Plum pox virus coat protein (PPV-CP) gene by Malinowski, Tadeusz, Cambra, Mariano, Capote, Nieves, Zawadzka, B., Gorris, María T., Scorza, Ralph, Ravelonandro, M.

“…Transgenic clones C2, C3, C4, C5, C6, and PT-6, of plum (Prunus domestica L.) transformed with the coat protein (CP) gene of Plum pox virus (PPV), PT-23 transformed with marker genes only, and nontransgenic B70146 were evaluated for sharka resistance under high infection pressure in field trials in Poland and Spain. These sites differed in climatic conditions and virus isolates. …”
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Synergism between food additives and heat to reduce postharvest sour rot of oranges by Palou, Lluís, Taberner, Verònica, Jerbi, Nihed, De-La-Fuente, Beatriz

“…In a further assay, no significant differences in incidence and severity were found between rinsed (5 s spray with tap water at low pressure) and non-rinsed ‘Valencia Late’ oranges previously dipped in 3% SMP or SB solutions at 20°C.…”
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The influence of aphid-produced honeydew on parasitoid fitness and nutritional state: A comparative study by Tena, Alejandro, Senft, Matthias, Desneux, Nicolas, Dregni, Jonathan, Heimpel, George E.

“…These data are consistent with the hypothesis that hemipterans are subject to selection pressure to minimize honeydew quality for the parasitoids that attack them.…”
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Effect of deficit irrigation on yield and quality of pear (Pyrus communis cv. Triumph of Vienna) by Moreno-Hernández, Adriana C., Vélez-Sánchez, Javier E., Intrigliolo, Diego S.

“…The mid day stem water potential, plant water relations, pressure-volume curve, fruit yield and quality were evaluated. …”
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Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia by Suárez, Juan C, Urban, Milan O, Contreras, Amara T, Noriega, Jhon E, Deva, Chetan, Beebe, Stephen E, Polanía, José A, Casanoves, Fernando, Rao, Idupulapati M

“…Climatological profiling showed high daytime and nighttime temperatures combined with high relative humidity and low vapor pressure deficit. Our understanding of the target environment allows us to select trait combinations for reaching higher yields in Amazonian acid soils. …”
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Análisis de la sequía y alternativas de adaptación y mitigación en la subcuenca del río Guacerique, Honduras by Lardizábal Joya, Claudia C.

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Timing of ungulate browsing and its effect on sapling height and the field layer vegetation by Ånöstam, Filip

“…I used seasonal exclosures in ten clear-cuts where I took data on deer visitation using camera traps, field layer vegetation coverage and height, and also height and browsing pressure on individual saplings. Each site had one permanent exclosure, one exclosure which was closed in winter but open in summer, one exclosure which was open in winter but closed in summer and one control plot which was never fenced off. …”
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Cost-efficient light-weighting within the aviation sector by Carlsson, Mattias

“…Rising fuel prices and growing concerns over the impacts of aviation on the greenhouse effect have increased the pressure on the commercial aviation sector to develop measures that improve fuel efficiency. …”
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Dynamic capabilities in sustainable supply chain management by Norberg, Oscar

“…Despite the fact that SMEs in the apparel sector are facing the same dynamic market challenges of increased competition, stakeholder pressure and changing business environments as large companies, they have different capabilities to implement SSCM practices. …”
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Grönområdens roll i förebyggandet av livsstilssjukdomar : en litteraturstudie by Rolff, Olga

Anti-predatory responses of White rhinoceros (Ceratotherium simum) to simulated risk. Does poaching create a landscape of fear? by Gambra Caravantes, Daniel

“…However, due to poaching, rhinos are exposed to a human predation pressure, which would be expected to create a landscape of fear. …”
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Sustainability Indices and ESG-ratings, the Impact on Corporate Sustainability : a case study using the perspective of a fast-growing Swedish bank by Magnér, Sofia

“…Due to the growing perception of social responsibility and environmental issues, measurement of the non-financial performance of corporations has become essential and pressure from stakeholders has resulted in new business strategies. …”