Search Results - "altitud"

Thermal buffering capacity of the germination phenotype across the environmental envelope of the Cactaceae by Seal, Charlotte E., Daws, Matthew I., Flores, Joel, Ortega Baes, Francisco Pablo, Galindez, Guadalupe, León Lobos, Pedro, Sandoval, Ana, Ceroni Stuva, Aldo, Ramírez Bullón, Natali, Dávila Aranda, Patricia, Ordoñez Salanueva, Cesar A., Yáñez Espinosa, Laura, Ulian, Tiziana, Amosso, Cecilia, Zubani, Lino, Torres Bilbao, Alberto, Pritchard, Hugh W.

“…We selected 55 cactus species from the Americas, all geo‐referenced seed collections, reflecting the broad environmental envelope of the family across 70° of latitude and 3700 m of altitude. We then generated empirical data of the thermal germination response from which we estimated the minimum (Tb), optimum (To) and ceiling (Tc) temperature for germination and the thermal time (θ50) for each species based on the linearity of germination rate with temperature. …”
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Mixed Nothofagus forest management: a crucial link between regeneration, site and microsite conditions by Sola, Georgina Giselle, El Mujtar, Veronica Andrea, Attis Beltran, Hernan, Chauchard, Luis Mario, Gallo, Leonardo Ariel

“…Regeneration taller than 2 m was mainly correlated with site and altitude. At both, microsite and stand scale, the relative abundance of species changed between mature trees and regeneration. …”
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The influence of environmental variations on the phenolic compound profiles and antioxidant activity of two medicinal Patagonian valerians (Valeriana carnosa Sm. and V. clarionifol... by Nagahama, Nicolas, Gastaldi, Bruno, Clifford, Michael, Manifesto, Maria Marcela, Fortunato, Renee Hersilia

“…In V. carnosa total phenolic content was not correlated with altitude or latitude (p > 0.05), and chemical variability seems to be associated with genetic variability and/or different growing habitats (microclimatic conditions). …”
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Papa de año (Solanum tuberosum Grupo Andigenum) : manual de recomendaciones técnicas para su cultivo en el departamento de Cundinamarca

“…Se cultiva en más de 140 países, en latitudes entre los 65 °N y 50 °S, y altitudes que varían desde el nivel del mar hasta los 4000 m s. n. m. …”
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Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Cameroon: case study on its distribution, damage, pesticide use, genetic differentiation and host plants by Fotso Kuate, A., Hanna, R., Doumtsop Fotio, A.R.P., Abang, A.F., Nanga, S.N., Ngatat, S., Tindo, M., Masso, C., Ndemah, R., Suh, C., Fiaboe, K.K.M.

“…Average percentage of infested plants and damage severity (on a scale of 1 to 5) were lowest-20.7 ± 7.4% and 2.1 ± 0.1 respectively-in the Sahelian regions and greatest-69.0 ± 4.3% and 3.1 ± 0.1 respectively-in the Western Highlands. Altitude did not influence FAW incidence and severity and its larvae infrequently co-occurred with maize stemborers on the same plants, suggesting possible direct and/or indirect competition between the two groups of maize pests. …”
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Factors affecting adoption of improved haricot bean varieties and associated agronomic practices in Dale Woreda, SNNPRS by Mulugeta, A.

“…Haricot bean (Phaseolus vulgaris L.) is one of the most important food legumes of Ethiopia and it is considered as the main cash crop and the least expensive source of protein for the farmers in many lowlands and mid altitude of the country. Low production and productivity, which are mainly associated with poor adoption of improved technologies and poor marketing system, were among the major problems. …”
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Optimizing soil fertility management strategies to enhance banana production in volcanic soils of the northern highlands, Tanzania by Meya, A.I., Ndakidemi, P.A., Mtei, K.M., Swennen, Rony L., Merckx, Roel

“…Banana is an important crop in high altitude areas of Tanzania, grown widely both as a food staple and as the main source of income. …”
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Climate vulnerability assessment of the Espeletia Complex on Páramo Sky Islands in the Northern Andes by Valencia Garcia, Jhon Brayan, Mesa, Jeison, León, Juan G., Madriñán, Santiago, Cortés, Andrés J.

“…In order to estimate climate sensitivity, we first modeled the distribution of 28 Espeletia taxa under a niche conservatism scenario using altitude and five current (1970–2000) and future (2050 RCP 8.5) bioclimatic variables across 36 different Páramo complexes in the northern Andes (49% of the world’s Páramo area). …”
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Changes in snow cover dynamics over the Indus Basin: evidences from 2008 to 2018 MODIS NDSI trends analysis by Ali, S., Cheema, M. J. M., Waqas, M. M., Waseem, M., Awan, Usman Khalid, Khaliq, T.

“…In such a huge river basin with high-altitude mountains, the regular quantification of snow cover is a great challenge to researchers for the management of downstream ecosystems. …”
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Growth, Productivity, Biomass and Carbon Stock in Eucalyptus saligna and Grevillea robusta Plantations in North Kivu, Democratic Republic of the Congo by Kasekete, D.K., Ligot, G., Mweru, J.-P.M., Drouet, T., Rousseau, M., Moango, A., Bourland, N.

“…The differences observed were mainly related to species, silviculture, altitude and concentration of bioavailable elements in the soils. …”
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GM maize in Ethiopia: An ex ante economic assessment of TELA, a drought tolerant and insect resistant maize by Yirga, Chilot, Nin-Pratt, Alejandro, Zambrano, Patricia, Wood-Sichra, Ulrike, Habte, Endeshaw, Kato, Edward, Komen, John, Falck-Zepeda, José B., Chambers, Judith A.

“…Producers from the mid-altitude maize zone will be the main beneficiaries, given the targeted area of TELA maize. …”
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Genome-wide association study for test-day milk yield, proteins, and composition traits of crossbred dairy cattle in Ethiopia by Bekele, R., Taye, M., Abebe, G., Mohammed, S., Besufekad, J., Meseret, Selam

“…Crossbred dairy cattle significantly contribute to increasing milk production and ensuring food security in the middle- and high-altitude regions of Ethiopia. However, the genetic architecture underlying their milk yield and composition traits has not yet been thoroughly investigated. …”
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The search for best fertilizer combination to increase wheat (Triticum aestivum L.) yield in north-western Ethiopia by Biratu, Gizachew Kebede, Elias, Eyasu, Worku, Abebe, Selassie, Yihenew G., Gameda, Samuel, Sida, Tesfaye Shiferaw

“…Wheat is among the major cereals of wider importance in the mid-altitudes and highlands of Ethiopia. But wheat yield is quite lower than what could be achievable. …”
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Impacts of climate change take a toll on Andean potato farmers: participative mapping for the evaluation of potato diversity in the Andes by Shaw, Alison, Kristjanson, Patricia M.

“…Learning: Researchers are learning about varieties of potato never documented as well as traditional food security practices at altitude, where high variability requires diversity of varieties to ensure some level of food security. …”
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Effect of temperature on the phenology of Chilo partellus (Swinhoe) (Lepidoptera, Crambidae); simulation and visualization of the potential future distribution of C. partellus in A... by Khadioli, N., Tonnang, Henri E.Z., Muchugu, E., Ong'amo, G., Achia, Thomas, Kipchirchir, I., Kroschel, Jürgen, Le Ru, B.

“…The study concludes thatC. partellusmay potentially expands its range into higher altitude areas, highland tropics and moist transitional regions, with the highest maize potential where the species has not been recorded yet. …”
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GIS based gap analysis as a tool for biodiversity conservation optimisation: the IITA cowpea collection by Rysavy, A., Dumet, D., Sonder, Kai, Sauerborn, J.

“…Then Eco geographical site descriptors (temperature, precipitation, length of growing period, altitude) were extracted to deter-mine areas with environmental conditions favoured by cowpea. …”
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Living at the threshold: where does the neotropical phytoseiid mite Typhlodromalus aripo survive the dry season? by Zundel, C., Hanna, R., Scheidegger, Urs C., Nagel, P.

“…The establishment of the neotropical predatory mite Typhlodromalus aripo in sub-Saharan Africa has resulted in broadly successful biological control of the cassava green mite Mononychellus tanajoa throughout the cassava belt of Africa. In some mid-altitude areas and drier lowland savannahs of sub-Saharan Africa, which are characterized by cool or hot long (≥5 months) dry seasons, the predator disappears from its habitat in the cassava apex during the dry season and reappears after the onset of rains. …”
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Mitochondrial phylogeography and population structure of the cattle tick Rhipicephalus appendiculatus in the African Great Lakes region by Amzati, Gaston S., Pelle, Roger, Muhigwa, J.B., Kanduma, Esther G., Djikeng, Appolinaire, Madder, M., Kirschvink, N., Marcotty, T.

“…Lineage A, the most diverse and ubiquitous, has experienced rapid population growth and range expansion in all AEZs probably through cattle movement, whereas lineage B, the less abundant, has probably established a founder population from recent colonization events and its occurrence decreases with altitude. These two lineages are sympatric in central and eastern Africa and allopatric in southern Africa. …”
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The genome landscape of Tibetan sheep reveals adaptive introgression from argali and the history of early human settlements on the Qinghai-Tibetan Plateau by Xiao-Ju Hu, Ji Yang, Xing-Long Xie, Feng-Hua Lv, Yin-Hong Cao, Wen-Rong Li, Ming-Jun Liu, Yu-Tao Wang, Jin-Quan Li, Yong-Gang Liu, Yan-Lin Ren, Zhi-Qiang Shen, Han Jianlin, Meng-Hua Li

“…Tibetan sheep are the most common and widespread domesticated animals on the Qinghai–Tibetan Plateau (QTP) and have played an essential role in the permanent human occupation of this high-altitude region. However, the precise timing, route, and process of sheep pastoralism in the QTP region remain poorly established, and little is known about the underlying genomic changes that occurred during the process. …”
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Clonal trial of five genotypes of “camu-camu”, Myrciaria dubia (h.b.k) mc. Vaugh, in non-flooded area by Pinedo Freyre, Sergio Fernando, Imán Correa, Sixto Alfredo, Pinedo Panduro, Mario, Vasquez, Armando, Collazos, Herman

“…The plantation has been established for 4 years and is located in 03° 56’ 50’’S, 73° 25’ 13’’W and 118 a.s.l. altitude, which is part of INIA-EEA“San Roque”4. The clones evaluated were MD-013, MD-014, MD-015, MD-017 and MD-020 and they stood out in the previous analysis in the national camu-camu germplasm collection of INIA. …”
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