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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.

LEDFLEX is a micro-lidar dedicated to the measurement of vegetation fluorescence. The light source consists of 4 blue Light-Emitting Diodes (LED) to illuminate part of the canopy in order to average the spatial variability of small crops. The fluorescence emitted in response to a 5-μs width pulse...


Moya, I.Loayza, H.Llanos, M.Quiróz, R.Ounis, A.Goulas, Y.[Canopy chlorophyll fluorescence applied to stress detection using an easy-to-build micro-lidar.]Canopy chlorophyll fluorescence applied to stress detection using an easy-to-build micro-lidar.

Agricultural UAV-based remote sensing tools to facilitate decision-making for increasing productivity in developing countries were developed and tested. Specifically, a high-quality multispectral sensor and sophisticated-yet-user-friendly data processing techniques (software) under an open-access...


Cucho-Padin, G.Loayza, H.Palacios, S.Balcazar, M.Carbajal, M.Quiróz, R.[Development of low-cost remote sensing tools and methods for supporting smallholder agriculture.]Development of low-cost remote sensing tools and methods for supporting smallholder agriculture.

Accurate determination of plant water status is mandatory to optimize irrigation scheduling and thus maximize yield. Infrared thermography (IRT) can be used as a proxy for detecting stomatal closure as a measure of plant water stress. In this study, an open-source software (Thermal Image Processo...


Cucho-Padin, G.Rinza, J.Ninanya, J.Loayza, H.Quiróz, R.Ramírez, D.A.[Development of an open-source thermal image processing software for improving irrigation management in potato crops (Solanum tuberosum L.).]Development of an open-source thermal image processing software for improving irrigation management in potato crops (Solanum tuberosum L.).
Chavez, P.Yarleque, C.Loayza, H.Mares, V.Hancco, P.Priou, S.Marquez, M.P.Posadas, A.Zorogastua, P.Flexas, J.Quiróz, R.[Detection of bacterial wilt infection caused by Ralstonia solanacearum in potato (Solanum tuberosum L.) through multifractal analysis applied to remotely sensed data.]Detection of bacterial wilt infection caused by Ralstonia solanacearum in potato (Solanum tuberosum L.) through multifractal analysis applied to remotely sensed data.

Quiróz, R.Posadas, A.Yarleque, C.Heidinger, HalineBarreda, CarolinaRaymundo, R.Carbajal, M.Loayza, H.Tonnang, Henri E.Z.Kroschel, J.Forbes, G.Haan, Stef de[Retos para la produccion sostenible de papas en un clima cambiante: Una perspectiva de investigacion.]Retos para la produccion sostenible de papas en un clima cambiante: Una perspectiva de investigacion.

Data acquisition for parameterization is one of the most important limitations for the use of potato crop growth models. Non destructive techniques such as remote sensing for gathering required data could circumvent this limitation. Our goal was to analyze the effects of incorporating ground-base...


Quiróz, R.Loayza, H.Barreda, CarolinaGavilán, C.Posadas, A.Ramírez, D.[Linking process-based potato models with light reflectance data: Does model complexity enhance yield prediction accuracy?]Linking process-based potato models with light reflectance data: Does model complexity enhance yield prediction accuracy?
Monneveux, P.Ramírez, D.Khan, M.A.Raymundo, R.M.Loayza, H.Quiróz, R.[Drought and heat tolerance evaluation in potato (Solanum tuberosum L.).]Drought and heat tolerance evaluation in potato (Solanum tuberosum L.).

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