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The definition of irrigation schedules depends on the understanding of the response of key plant traits to different water restriction characteristics with the aim to avoid physiological impairment. In this study, different timings (at tuber initiation and bulking) and intensities (four soil mois...


Ramírez, D.Yactayo, W.Rens, L.R.Rolando, J.L.Palacios, S.Mendiburu, F. deMares, V.Barreda, CarolinaLoayza, H.Monneveux, P.Zotarelli, L.Khan, A.Quiróz, R.[Defining biological thresholds associated to plant water status for monitoring water restriction effects: Stomatal conductance and photosynthesis recovery as key indicators in potato.]Defining biological thresholds associated to plant water status for monitoring water restriction effects: Stomatal conductance and photosynthesis recovery as key indicators in potato.

Dixon, John A.Li, X.Msangi, SiwaAmede, TilahunBossio, Deborah A.Ceballos, H.Ospina, B.Howeler, Reinhardt H.Reddy, B.V.S.Abaidoo, R.C.Timsina, J.Crissman, C.C.Mares, V.Quiróz, R.León Velarde, C.U.Herrero, Mario T.Blümmel, MichaelHolmann, Federico J.Peters, MichaelWhite, D.Qadir, ManzoorSzonyi, J.[Feed, food and fuel: Competition and potential impacts on small-scale crop-livestock-energy farming systems]Feed, food and fuel: Competition and potential impacts on small-scale crop-livestock-energy farming systems

Downscaling techniques aim at resolving the scale discrepancy between climate change scenarios and the resolution demanded for impact assessments. Requirements for downscaled climate, to be useful for end users, include reliable representation of precipitation intensities, temporal and spatial va...


Quiróz, R.Posadas, A.Yarleque, C.Heidinger, HalineRaymundo, R.Carbajal, M.Cruz, MarianaGuerrero, J.Mares, V.Silvestre, ElisabethJones, C.Carvalho, Leila M. V.Dinku ,T.[Application of non-linear techniques for daily weather data reconstruction and downscaling coarse climate data for local predictions]Application of non-linear techniques for daily weather data reconstruction and downscaling coarse climate data for local predictions

Natural resource degradation and environmental damage are important concerns today. Through the influence of overgrazing, overstocking and feeding of crop residues, livestock have undoubtedly contributed to these processes. All too often, however, allegations about the detrimental impact of lives...


Ehui, Simeon K.Li Pun, H.H.Mares, V.Shapiro, Barry I.[The role of livestock in food security and environmental protection]The role of livestock in food security and environmental protection

With current rates of land degradation reaching ten to twelve million ha per year, there is an urgent need to scale up and out successful, profitable and resource-efficient sustainable land management practices to maintain the health and resilience of the land that humans depend on. As much as 50...


Thomas, Richard J.Reed, M.Clifton, K.Appadurai, Arivudai NambiMills, A. J.Zucca, ClaudioKodsi, E.Sircely, Jason A.Haddad, F.Hagen, C. vonMapedza, EveristoWolderegay, K.Shalander, K.Bellon, M.Le, Q. B.Mabikke, SamuelAlexander, S.Leu, S.Schlingloff, S.Lala-Pritchard, T.Mares, V.Quiróz, R.[Scaling up sustainable land management and restoration of degraded land]Scaling up sustainable land management and restoration of degraded land

High-altitude ecosystems shelter important reserves of biodiversity, water provision and soil organic carbon (SOC) stocks. Climate change, agricultural encroachment, overgrazing, and mining activities are endangering ecosystems sustainability, particularly in the high-Andean Puna. Increasing food...


Rolando, J.L.Turin, C.Ramírez, D.Mares, V.Monerris, J.Quiróz, R.[Key ecosystem services and ecological intensification of agriculture in the tropical high-Andean Puna as affected by land-use and climate changes.]Key ecosystem services and ecological intensification of agriculture in the tropical high-Andean Puna as affected by land-use and climate changes.

Partial root-zone drying (PRD) is an irrigation technique which consists of alternating the water supply from one furrow to another, and keeping the other one dry during the weekly alternation period. Studies assessing PRD in potato have reported a 30-50% of water savings with no tuber yield redu...


Yactayo, W.Ramírez, D.German, T.Worku, A.Abeb, A.Harahagazwe, V.Mares, V.Mendiburu, F. deQuiróz, R.[Improving potato cultivation using siphons for partial root-zone drying irrigation: a case study in the Blue Nile river basin, Ethiopia.]Improving potato cultivation using siphons for partial root-zone drying irrigation: a case study in the Blue Nile river basin, Ethiopia.

Expansion of crop production into high-altitude native grasslands is occurring in the Peruvian High-Andes due to climate change and agricultural intensification, with little understanding of the consequences to the ecosystem. The objective of this study was to determine the impact of land-use cha...


Rolando, J.L.Dubeux, J.C.Ramírez, D.Ruiz Moreno, M.Turin, C.Mares, V.Sollenberger, L.Quiróz, R.[Land use effects on soil fertility and nutrient cycling in the Peruvian High-Andean puna grasslands.]Land use effects on soil fertility and nutrient cycling in the Peruvian High-Andean puna grasslands.

The Andean region is the most important center of potato diversity in the world. The global warming trend which has taken place since the 1950s, that is 2-3 times the reported global warming and the continuous presence of extreme events makes this region a live laboratory to study the impact of c...


Quiróz, R.Ramírez, D.Kroschel, J.Andrade-Piedra, J.L.Barreda, CarolinaCondori, B.Mares, V.Monneveux, P.Pérez, W.[Impact of climate change on the potato crop and biodiversity in its center of origin]Impact of climate change on the potato crop and biodiversity in its center of origin
Ramírez, D.Yactayo, W.Gutiérrez, R.Mares, V.Mendiburu, F. dePosadas, A.Quiróz, R.[Chlorophyll concentration in leaves is an indicator of potato tuber yield in water-shortage conditions.]Chlorophyll concentration in leaves is an indicator of potato tuber yield in water-shortage conditions.

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