Este archivo ha sido creado el 10-09-2024 por Alfonso Moriana Elvira GENERAL INFORMATION ------------------ 1. Dataset title: Dataset of the article Effect of water stress and rehydration on the cluster and fruit quality in greenhouse tomatoes. 2. Authorship: Name:Alomari-Mheidat, M Institution: Universidad de Sevilla Email: munia1990@hotmail.com ORCID: Name:Corell, Mireia Institution:Universidad de Sevilla Email:mcorell@us.es ORCID:0000-0001-5955-0048 Name:Castro-Valdecantos, Pedro Institution: Universidad de Sevilla Email:pcvaldecantos@us.es ORCID:0000-0002-8543-9391 Name: Andreu, Luis Institution: Universidad de Sevilla Email:landreu@us.es ORCID:0000-0002-8741-127X Name: Moriana, Alfonso Institution:Universidad de Sevilla Email:amoriana@us.es ORCID:0000-0002-5237-6937 Name: Martín-Palomo, María José Institution: Universidad de Sevilla Email:mjpalomo@us.es ORCID:0000-0002-0314-4363 DESCRIPTION ---------- 1. Dataset language: English 2. Abstract: Los datos están recogidos en 2 ciclos diferentes de un cultivo de tomate. Ciclo de otoño en 2021 y primavera en 2022. El articulo compara la respuesta del cuajado de frutos en diferentes variedades de tomate. No hubo un efecto significativo sobre el número de frutos en cada racimo hasta que los niveles de estrés hídrico no fueron muy severos. Las diferencias en cosecha estuvieron relacionadas con ls vriaciones en el peso de los frutos 3. Keywords: Riego deficitario, potencial hídrico foliar, frutos, tomate, cosecha 4. Date of data collection (fecha única o rango de fechas): Ciclo de otoño (Octubre-Diciembre) años 2021, ciclo primavera (Marzo-abril) año 2022 5. Publication Date: 16-12-2024 6. Grant information: No grant for this work 7. Geographical location/s of data collection: Escuela Técnica Superior de Ingeniería Agronómica (ETSIA) in Seville, Spain (37º 21' N, 5º 56'W, 33 m. a.s.l). ACCESS INFORMATION ------------------------ 1. Creative Commons License of the dataset: CC-BY 2. Dataset DOI:https://idus.us.es/assets/idus/images/uri/doi.png 3. Related publication: Alomari-Mheidat, M., Corell, M., Castro-Valdecantos, P., Andreu, L., Moriana, A., Martin-Palomo, M.J. 2023. Effect of water stress and rehydration on the cluster and fruit quality of greenhouse tomatoes. Agronomy 13, 563, doi 10.3390/agronomy13020563. METHODOLOGICAL INFORMATION ----------------------- 1. Description of the methods used to collect and generate the data: Experiments was carried out in a greenhouse of Escuela Técnica Superior de Inge-niería Agronómica (E.T.S.I.A.) of the University of Seville, Spain (37º 21' N, 5º 56'W, 33 m. a.s.l.) from October to December 2021 (Autumn cycle) and March to June 2022 (Spring cy-cle). Radiation transmissibility in the greenhouse was 75%. Passive ventilation was per-formed with lateral and zenithal windows. Autumn cycle was performed with one inde-terminate growth cherry cultivar of tomato (cv “Grandbrix”). Spring cycle included this latter cultivar and also other two indeterminate cultivars; other cherry cultivar (cv “Laza-rino”) and pear cultivar (cv “Bielsa”) all of them provided by Fitó Company (Spain). They were sowed in a nursery seedling and transplanted, after 30 days, to a sixteen (Autumn cycle) and eighteen (six per cultivar) 20 L pots with one plant each, filled with a mixture of peat, blond and black (1:1), corrected with calcium dolomite, with 6.2 pH, and EC of 1.7 mS.cm-1. It was fertilized with Osmocote PRO 6 months (4 g.L-1). Pots were watered with 1 dropper of 4 L h-1 each. An irrigation controller (Galcon 11000EZ ) scheduled daily irriga-tion time. The Autumn experiment run from DOY (day of the year) 277 to DOY 350, and its de-sign was a completely randomized blocked design with four blocks of three pots each. The Spring experiment was performed from DOY 89 to 152 with a split plot design (main fac-tor cultivar and second factor irrigation) of three pots per cultivar and irrigation combina-tion. Irrigation treatments were full irrigated conditions, 125% crop evapotranspiration (Control) and Stress. In Autumn cycle, drought cycles in stress treatment were applied ac-cording to fruit development and water stress level: - First drought cycle (DOY 280-298) started when the first cluster was develop-ing, and water stress was controlled with several irrigation events to reduce the water po-tential and reach the threshold of -0.8 MPa. - Second drought cycle (DOY 302-323) was performed when the fifth cluster was developing, and no irrigation was provided during the whole period. During the Spring cycle, only a single water stress period was programmed during the fifth cluster development from DOY 110. The objective of this treatment was to obtain a water stress level around -2 MPa. However, because of the great temperature conditions and though the pot weight was similar to the Autumn cycle, all plants presented at DOY 126 wilting symptoms and a strong defoliation. This supposed that water sta-tus measurements were not performed from this date. For both drought cycles, rehydra-tion was achieved with initial over-irrigations until reaching the pot weight of the Control plants. 3. Software or instruments needed to interpret the data: Excel program 4. Information about instruments, calibration and standards: Water relations were described using the midday leaf water potential, net photosyn-thesis and pot weight measurements in 4 pots per treatment (Autumn cycle) and 3 pots per combinations of factors (Spring cycle). Water potential was measured every week on one leaflet of healthy, completed expanded, well illuminated leaves at midday with a pressure chamber (PMS1000, PMS, USA). Net photosynthesis was measured simultane-ously with the water potential, but only in some dates in both growth cycles, on one leaflet per repetition, using an infrared gas analyzer (CI-340, CID BioScience, USA). Average con-ditions of net photosynthesis measurement were 503 mol m-2 s-1 of radiation, 354 ppm CO2 and 26.3 ºC in Autumn and 956 mol m-2 s-1 of radiation, 350 ppm CO2 and 29.2 ºC in Spring cycle. Water potential and net photosynthesis were not measured in Spring cycle from DOY 126 because of low number and small size of the leaves in Stress plants. Soil water content pattern was estimated with weekly pot weight of all plants in each growth cycle. Plant development was characterized with weekly measurements of plant height and number of clusters in 4 pots per treatments (Autumn cycle) and 3 pots per combinations of factors (Spring cycle). In addition, the number of fruits and flowers at the first and fifth cluster in the same pots were also counted every week. Fruits were harvested individually in all pots when they reached commercial ripening (around 80-100% red stage), then they were classified, weighed and counted per pot. Non-commercial fruits were identified and weight. Non-commercial features were blossom end rot (BER) injury, yellow shoulder and split fruit Fruit weight was estimated in each pot as the ratio between total weight and number of commercial fruits. Three fruits per pot were randomly selected to measure soluble sol-ids (TSS) using a Hand-refractometer RHC-200ATC (Huake, China). The average of these measurements per pot was used for comparison 5. Environmental or experimental conditions: ETo inside the greenhouse was estimated according to greenhouse model [20] based on the external radiation data from an Andalusian network of agroclimatic stations (La Rinconada, [21] (Fig. 1a). During Autumn cycle, ETo decreased progressively throughout the experiment from 2.5 to 1.0 mm day-1, and values were extremely low on some dates. On the contrary, in the Spring cycle, ETo increased progressively from 3.0 to 5.0 mm day-1. Temperature inside the greenhouse was also measured with a temperature and humidity sensor attached to a CR1000 datalogger (Campbell Sci, UK). As in the case of ETo data, along the Autumn cycle, temperature decreased throughout the experiment (Fig. 1b). Until DOY 308, minimum temperatures were higher than 15ªC, with daily maximum values higher than 35ºC. Then, there was a partial data loss, but according to external tempera-ture data, the minimum temperatures were below 5ºC and they even reached values close to 0ºC. At the end of this cycle, the values were steady at around 20/5ºC. In the Spring cy-cle, temperatures were more steady and higher than in Autumn cycle. Most of the dates, maximum temperatures oscillated between 30-35ºC, with some data near of 40ºC at the end of the cycle. Minimum temperatures increased from 10ºC at the beginning of the cycle until around 15ºC. FILE OVERVIEW ---------------------- 1. Explain the file naming conversion, si es aplicable: There is a unique file with all data. Each sheet is data of each figure at the reference publication 2. File list: File name:Dataset Alomari 2023 Description: Excel file 4. File format: Excel