Resultados de búsqueda - "Chang’an"

Integrative taxonomy of root-knot nematodes reveals multiple independent origins of mitotic parthenogenesis por Janssen, T., Karssen, G., Topalovic, O., Coyne, Danny L., Bert, W.

“…The wide variation in chromosome numbers and associated changes in reproduction modes indicate that cytogenetic evolution played a crucial role in the speciation of root-knot nematodes and plant-parasitic nematodes in general.…”
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A regional scale ecological risk framework for environmental flow evaluations por O'Brien, G.C., Dickens, Chris, Hines, E., Wepener, V., Stassen, R., Landis, W.G.

“…Recent developments in Environmental Flow (E-flow) frameworks advocate holistic, regional scale, probabilistic E-flow assessments that consider flow and non-flow drivers of change in socio-ecological context as best practice. …”
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Farmer participatory research in cassava technology transfer in India por Ramanathan, S., Anantharaman, M.

“…The concept and methodology used in the transfer of technology (TOT) have undergone changes over the years corresponding to farmers' needs, and as a result, farmer participatory TOT has become more relevant, especially in complex diversified risk-prone (CDR) farming systems. …”
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Driving factors of agrobiodiversity: which characteristics influence intra-household potato diversity in the peruvian Andes?. por Luttringhaus, S., Polreich, S., Pradel, W., Suarez, V., Haan, Stef de

“…Future research should apply a mix of quantitative and qualitative methods to better capture and analyse farmers’ intrinsic value systems regarding agrobiodiversity and changing varietal preferences.…”
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Occurrence of aflatoxins and its management in diverse cropping systems of central Tanzania por Seetha, A., Munthali, W., Msere, H.W., Swai, E., Muzanila, Y., Sichone, E., Tsusaka, T.W., Rathore, A., Okori, Patrick

“…Training and behavioral changes by farmers in their post-harvest practice minimize aflatoxin contamination and improve food safety. …”
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Terminal drought tolerant pearl millet [Pennisetum glaucum (L.) R. Br.] have high leaf ABA and limit transpiration at high vapour pressure deficit por Kholová, Jana, Hash, C.T., Kumar, P. Lava, Yadav, R.S., Kočová, M., Vadez, Vincent

“…Except for one line, Tr slowed down in tolerant lines above a breakpoint at 1.40–1.90 kPa, with the slope decreasing >50%, whereas sensitive lines showed no change in that Tr response across the whole VPD range. …”
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Ammonia Fiber Expansion (AFEX) as spin off technology from 2nd generation biofuel for upgrading cereal straws and stovers for livestock feed por Blümmel, Michael, Teymouri, F., Moore, J., Nielson, C., Kodukula, P., Pothu, S., Devulapalli, R.

“…Measured after 24 h of incubation, AFEX treatment consistently and significantly increased in vitro gas production (42.9 vs33.3 ml/200 mg), in vitro apparent digestibility (493 vs 630 g/kg) and true digestibility (624 vs 755 g/kg) and in vitro metabolizable energy content (6.9 vs 8.6 MJ/kg). Treatment changes in digestibility estimated based on in vitro gas production generally agreed with gravimetric estimates based on undigested residues, making it unlikely that the effect of AFEX treatment on digestibility was overestimated by unrecovered soluble but un-fermentable substrate. …”
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Soil organic carbon stocks and fractionation under different land uses in the Peruvian high-Andean Puna por Rolando, J.L., Dubeux, J.C., Pérez, W., Ramírez, D., Turin, C., Ruíz Moreno, M., Comerford, N., Mares, V., García, S., Quiróz, R.

“…In this paper, we assessed the impact changes in land use have on C sequestration, fractionation and δ13C natural abundance featuring two case studies in the Peruvian Central Puna. …”
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Yield potential and yield stability of maize hybrids selected for drought tolerance por Meseka, S.K., Menkir, A., Ibrahim, A.

“…Combined analysis of variance showed that environments, genotypes and genotype-by-environment (GE) interaction effects were highly significant, suggesting that the hybrids responded differently relative to each other to a change in environment. Genotype and genotype-by-environment (GGE) biplot analysis explained 90%of the yield variation due to GGE. …”
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Impacts assessments without true baselines: assessing the relative effects of training on the performance of water user associations in southern Tajikistan por Balasubramanya, Soumya, Price, Joseph P.G., Horbulyk, Theodore M.

“…This is a context in which methods such as synthetic controls are impossible to employ due to the nature of the intervention, other macroeconomic structural changes, and severe data restrictions. The methodology employed here generates evidence that, while biased toward generating an underestimate of effect, can still be useful and informative for policy and management purposes, and for evaluating the impact of process on the functioning of new institutions in transition settings.…”
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Farmers’ use and adaptation of improved climbing bean production practices in the highlands of Uganda por Ronner, E., Descheemaeker, Katrien K., Almekinders, Conny J.M., Ebanyat, Peter, Giller, Kenneth E.

“…Other relationships were often inconsistent and farmers changed practices from season to season. The diversity of farmer responses complicates the development of recommendation domains and warrants the development of a basket of options from which farmers can choose. …”
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Fisheries' Property Regimes and Environmental Outcomes: A Realist Synthesis Review por McLain, R., Lawry, S., Ojanen, M.

“…More importantly, use of a realist synthesis approach allowed us to gain a deeper understanding of the ways in which three mechanisms—perceptions of legitimacy, perceptions of the likelihood of benefits, and perceptions of enforcement capacity—interact under different socio-ecological contexts to trigger behavioral changes that affect environmental conditions. The approach revealed the multi-faceted and interactive nature of perceptions of legitimacy, in which legal legitimacy, social acceptability, and ecological credibility combined to create robust legitimacy. …”
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Biochar research activities and their relation to development and environmental quality. A meta-analysis por Mehmood, K., Chávez Garcia, E., Schirrmann, M., Ladd, Brenton, Kammann, C., Wrage-Mönnig, N., Siebe, C., Estavillo, J.M., Fuertes Mendizábal, T., Cayuela, M., Sigua, G., Spokas, K., Cowie, A.L., Novak, J., Ippolito, J.A., Borchard, Nils

“…Its addition to highly weathered soils changes physico-chemical soil properties, improves soil functions and enhances crop yields. …”
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Why do forest products become less available?: A pan-tropical comparison of drivers of forest-resource degradation por Hermans-Neumann, Kathleen, Gerstner, K., Geijzendorffer, I.R., Herold, Martin, Seppelt, Ralf, Wunder, Sven

“…Our study addresses this gap by analyzing the factors driving changes in tropical forest products in the perception of rural smallholder communities. …”
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Does the Establishment of Sustainable Use Reserves Affect Fire Management in the Humid Tropics? por Carmenta, R., Blackburn, G.A., Davies, G., Sassi, Claudio de, Lima, A., Parry, L., Tych, W., Barlow, J.

“…Tropical forests are experiencing a growing fire problem driven by climatic change, agricultural expansion and forest degradation. …”
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Fragmentation increases wind disturbance impacts on forest structure and carbon stocks in a western Amazonian landscape por Schwartz, N., Uriarte, M.A, DeFries, Ruth S., Bedka, K.M., Fernandes, K., Gutiérrez Vélez, Victor Hugo, Pinedo Vasquez, M.

“…Tropical second‐growth forests could help mitigate climate change, but the degree to which their carbon potential is achieved will depend on exposure to disturbance. …”
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Recent decline in suitable environmental conditions for African great apes por Junker, J, Blake, S, Boesch, C, Campbell, G., Toit, L. du, Duvall, C, Ekobo, A, Etoga, G., Galat-Luong, A, Gamys, J, Ganas-Swaray, J, Gatti, S, Ghiurghi, A, Granier, N, Hart, J, Head, J., Herbinger, I, Hicks, T.C, Huijbregts, B, Imong, I.S, Kuempel, N, Lahm, S, Lindsell, J, Maisels, F., McLennan, M, Martínez, L., Morgan, B, Morgan, D, Mulindahabi, F, Mundry, R, N’Goran, K.P, Normand, E, Ntongho, A, Okon, D.T, Petre, C, Plumptre, A, Rainey, H, Regnaut, S, Sanz, C., Stokes, E, Tondossama, A, Tranquilli, S, Sunderland-Groves, J., Walsh, P, Warren, Y, Williamson, E.A, Kuehl, H.S.

“…Except for Cross River and eastern gorillas, the number of SEC patches did not change significantly, suggesting that SEC loss was caused mainly by patch size reduction.The first continent‐wide perspective of African ape SEC distribution shows dramatic declines in recent years. …”
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Social impact of soybean in Nigerias southern Guinea savanna por Sanginga, P., Adesina, A.A., Manyong, Victor M., Otite, O., Dashiell, Kenton E.

“…The results show that the status of soybean has changed from a traditionally male controlled minor export crop, to one of the most important crops cultivated by the majority of male and female farmers. …”
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Effect of dung quantity and quality on greenhouse gas fluxes from tropical pastures in Kenya por Yuhao Zhu, Merbold, Lutz, Pelster, David E., Díaz Pinés, Eugenio, Wanyama, George N., Butterbach-Bahl, Klaus

“…The N2O EF ranged from 0 to 0.01%, less than 1% of the Intergovernmental Panel on Climate Change Tier 1 default EF (2%) for N2O emissions from dung and urine patches, likely because of the low dung N content (9.7–16.5 g N kg−1 dry matter). …”
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Nutritionally versatile, abiotic stress resistant and symbiotically effective chickpea (Cicer arietinum L.) root nodulating rhizobial isolates from eastern, southeastern and southe... por Gebremedhin, W., Assefa, F., Thuita, Moses N., Masso, C.

“…The isolates were fast growing and acid producing rhizobia with growth rate of 1-2.8 h, and changed the YEMA-BTB (Yeast Extract Mannitol Agar Bromothymol Blue) medium into yellow characteristics of many of the fast growing rhizobia Mesothizobium spp. isolated from chickpea. …”
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