TY  - JOUR
AU  - Dumschott, Kathryn
AU  - Wuyts, Nathalie
AU  - Alfaro, Christian
AU  - Castillo, Dalma
AU  - Fiorani, Fabio
AU  - Zurita-Silva, Andrés
TI  - Morphological and Physiological Traits Associated with Yield under Reduced Irrigation in Chilean Coastal Lowland Quinoa
JO  - Plants
VL  - 11
IS  - 3
SN  - 2223-7747
CY  - Basel
PB  - MDPI
M1  - FZJ-2022-01124
SP  - 323 -
PY  - 2022
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 35161304
UR  - <Go to ISI:>//WOS:000755572000001
DO  - DOI:10.3390/plants11030323
UR  - https://juser.fz-juelich.de/record/905942
ER  -