RT Conference Proceedings T1 Strawberry fruit quality and production under drought stress conditions. A1 Aguado, Sara A1 Rodríguez-Hiraldo, Claudia A1 Posé-Albacete, Sara A1 Paniagua, Candelas A1 Blanco-Portales, Rosario A1 Muñoz-Blanco, Juan A1 Quesada-Felice, Miguel Ángel A1 Matas-Arroyo, Antonio Javier A1 Mercado-Carmona, José Ángel K1 Fresas - Cultivo K1 Plantas - Tolerancia a la sequía AB The increase in temperature and the decrease in water resources predicted byclimate change models will directly influence the productivity, ripening rate, andorganoleptic quality of fruit crops. Strawberry is an important crop in Spain, Spain beingthe sixth largest strawberry producer in the world. This crop is particularly susceptibleto drought stress; climate change will significantly challenge strawberry production inthe short and medium term. This assay aimed to characterize the performance ofdifferent strawberry (Fragaria × ananassa, Duch.) varieties under water restrictionconditions. For this purpose, potted plants of the cultivars Chandler, Camarosa, Amiga,and Rociera were grown in a greenhouse during the production months under sufficient(3.3 L·m-2·day-1) or deficient (0.5 L·m-2·day-1) irrigation conditions. Vegetative growth ofplants under stress conditions decreased significantly in the same proportion in all linestested. However, water use efficiency, estimated as photosynthetic rate/transpirationrate, increased in water-stressed plants of cv. Chandler. Under drought conditions, asignificant decrease in fruit weight and size was observed in all genotypes and in thenumber of fruits produced per plant. The cv. Rociera showed the most significantdecrease in fruit yield, 90%, despite this genotype being the most productive in controlconditions. Regarding fruit quality, no differences were observed in firmness, except inthe Rociera genotype, which produced firmer fruits under stress conditions. Likewise,water restriction did not affect the concentration of soluble solids except in cv. Amiga,in which this variable was significantly increased. As for color, there were no significantchanges in the parameters measured. Experiments are underway to determinetranscriptomic differences among the different genotypes subjected to droughtconditions. YR 2024 FD 2024 LK https://hdl.handle.net/10630/32053 UL https://hdl.handle.net/10630/32053 LA eng NO This publication is part of the project PID2020-118468RB-C21, funded byMCIN/AEI/0.13039/501100011033/ and “FEDER a way to make Europe”.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026