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 # Quinoa_Chileanfieldtrial
 
+## Abstract
 
+This ARC represents the data described in the following publication:
+
+## Publication
+
+**Title:** Morphological and Physiological Traits Associated with Yield under Reduced Irrigation in Chilean Coastal Lowland Quinoa 
+
+**Authors:** Dumschott, K.★; Wuyts, N.★; Alfaro, C.; Castillo, D.; Fiorani✉, F.; Zurita-Silva✉\
+★These authors contributed equally to this work\
+✉ Corresponding authors
+
+**Information:** Plants 2022, 11, 323. https://doi.org/10.3390/plants11030323 
+
+**Abstract:** Quinoa (Chenopodium quinoa Willd.) is a genetically diverse crop that has gained popularity in recent years due to its high nutritional content and ability to tolerate abiotic stresses such as salinity and drought. Varieties from the coastal lowland ecotype are of particular interest due to their insensitivity to photoperiod and their potential to be cultivated in higher latitudes. We performed a field experiment in the southern Atacama Desert in Chile to investigate the responses to reduced irrigation of nine previously selected coastal lowland self-pollinated (CLS) lines and the commercial cultivar Regalona. We found that several lines exhibited a yield and seed size superior to Regalona, also under reduced irrigation. Plant productivity data were analyzed together with morphological and physiological traits measured at the visible inflorescence stage to estimate the contribution of these traits to differences between the CLS lines and Regalona under full and reduced irrigation. We applied proximal sensing methods and found that thermal imaging provided a promising means to estimate variation in plant water use relating to yield, whereas hyperspectral imaging separated lines in a different way, potentially related to photosynthesis as well as water use.
+
+**Keywords:** Chenopodium quinoa Willd.; field trial; hyperspectral imaging; phenotyping; quinoa; reduced irrigation; thermal imaging; yield
+
+## Investigators
+
+- **Kathryn Dumschott** (Institute of Bio- and Geosciences, Bioinformatics (IBG-4), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany; Institute for Biology I, BioSC, RWTH Aachen University, 52056 Aachen, Germany)
+- **Nathalie Wuyts** (Institute of Bio- and Geosciences, Plant Sciences (IBG-2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany)
+- **Christian Alfaro** (Centro de Investigación Intihuasi (AZS), Instituto de Investigaciones Agropecuarias, La Serena 1722093, Chile; Centro de Investigación Rayentué (CA), Instituto de Investigaciones Agropecuarias, Rengo 2940000, Chile;  Centro de Investigación Quilamapu, Instituto de Investigaciones Agropecuarias, Chillán 3780000, Chile)
+- **Dalma Castillo** (Centro de Investigación Intihuasi (AZS), Instituto de Investigaciones Agropecuarias, La Serena 1722093, Chile; Centro de Investigación Rayentué (CA), Instituto de Investigaciones Agropecuarias, Rengo 2940000, Chile;  Centro de Investigación Quilamapu, Instituto de Investigaciones Agropecuarias, Chillán 3780000, Chile)
+- **Fabio Fiorani** (Institute of Bio- and Geosciences, Plant Sciences (IBG-2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany)
+- Andrés Zurita-Silva (Centro de Investigación Intihuasi (AZS), Instituto de Investigaciones Agropecuarias, La Serena 1722093, Chile; Centro de Investigación Rayentué (CA), Instituto de Investigaciones Agropecuarias, Rengo 2940000, Chile;  Centro de Investigación Quilamapu, Instituto de Investigaciones Agropecuarias, Chillán 3780000, Chile)****
+
+## Funding 
+
+This trial was conducted as part of the BMBF funded project "QUINOA DIVERSITY- Quinoa Phenotypic and Genotypic Diversity for Yield and Composition"
+https://www.kooperation-international.de/laender/amerika/chile/projekte-chile/detail-laendereinstiegsseite/info/biooekonomie-international-2015-quinoa-diversity-untersuchungen-zur-phaenotypischen-und-genotypisch-5
 
 ## Project Description
 
@@ -10,19 +40,29 @@ Responses to full and reduced irrigation were investigated for nine coastal lowl
      <img width=70% src="studies/quinoa_trialplots.png">
 </p>
 
-#### This trial was conducted as part of the BMBF funded project "QUINOA DIVERSITY- Quinoa Phenotypic and Genotypic Diversity for Yield and Composition"
-https://www.kooperation-international.de/laender/amerika/chile/projekte-chile/detail-laendereinstiegsseite/info/biooekonomie-international-2015-quinoa-diversity-untersuchungen-zur-phaenotypischen-und-genotypisch-5
+## Data Overview
 
-## Publication
+Data included:
 
-Title: Morphological and Physiological Traits Associated with Yield under Reduced Irrigation in Chilean Coastal Lowland Quinoa 
+- Agronomical traits at harvest
+- Imaging data
+     - Thermal infrared imaging
+     - Hyperspectral imaging
+- Chlorophyll fluorescence
+- Phenology
+- Relative water content
+- Weather Data
 
-Authors: Dumschott, K.★; Wuyts, N.★; Alfaro, C.; Castillo, D.; Fiorani✉, F.; Zurita-Silva✉\
-★These authors contributed equally to this work\
-✉ Corresponding authors
+## ARC Structure
+
+This ARC is organized as follows:
+
+* **Study:** Description of the field trial, including genotypes used, soil characteristics, and Experimental design.
+* **Assays:** Each assay represents a specific technical analysis performed to characterize quinoa responses within the trial.
+
+### Study
+
+- ExperimentalSetup [README](https://git.nfdi4plants.org/usadellab/quinoa_chileanfieldtrial/-/tree/main/studies?ref_type=heads)
 
-Information: Plants 2022, 11, 323. https://doi.org/10.3390/plants11030323 
 
-Abstract: Quinoa (Chenopodium quinoa Willd.) is a genetically diverse crop that has gained popularity in recent years due to its high nutritional content and ability to tolerate abiotic stresses such as salinity and drought. Varieties from the coastal lowland ecotype are of particular interest due to their insensitivity to photoperiod and their potential to be cultivated in higher latitudes. We performed a field experiment in the southern Atacama Desert in Chile to investigate the responses to reduced irrigation of nine previously selected coastal lowland self-pollinated (CLS) lines and the commercial cultivar Regalona. We found that several lines exhibited a yield and seed size superior to Regalona, also under reduced irrigation. Plant productivity data were analyzed together with morphological and physiological traits measured at the visible inflorescence stage to estimate the contribution of these traits to differences between the CLS lines and Regalona under full and reduced irrigation. We applied proximal sensing methods and found that thermal imaging provided a promising means to estimate variation in plant water use relating to yield, whereas hyperspectral imaging separated lines in a different way, potentially related to photosynthesis as well as water use.
 
-Keywords: Chenopodium quinoa Willd.; field trial; hyperspectral imaging; phenotyping; quinoa; reduced irrigation; thermal imaging; yield