{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T02:15:04Z","timestamp":1773281704116,"version":"3.50.1"},"reference-count":76,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T00:00:00Z","timestamp":1773187200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"PSR Campania","award":["CUP B79H23000090006"],"award-info":[{"award-number":["CUP B79H23000090006"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>Ultraviolet-B (UV-B) radiation plays a pivotal role in plant growth, metabolism, and the accumulation of bioactive compounds, but its effects under greenhouse conditions are highly species- and dose-dependent. This study investigated the responses of eggplant (Solanum melongena L., cv. Lunga Napoletana) and lettuce (Lactuca sativa L., cv. Rosplus) cultivated under greenhouse films transmitting 3\u201339% of ambient UV-B. Leaf temperature was monitored throughout the growth cycle using infrared thermography, while physiological parameters (chlorophyll, flavonoids, anthocyanins, and nitrogen index) and post-harvest nutritional traits (antioxidant activity, vitamin C, carotenoids, and total chlorophyll) were assessed. Comparative analysis revealed species-specific responses. Eggplant exhibited peak nutraceutical quality at higher UV-B levels (35\u201339%) with minimal changes in yield, whereas lettuce achieved maximal yield and secondary metabolite accumulation under intermediate UV-B (30\u201335%). At the highest UV-B transmittance (39%), both species exhibited stable or slightly reduced thermal and physiological parameters, indicating dose-dependent regulatory mechanisms that maintain photoprotection and metabolic activity under elevated UV-B exposure. Results suggest an apparent optimal range of UV-B transmittance in greenhouse systems under the tested experimental conditions, contributing to improved crop productivity and nutritional quality.<\/jats:p>","DOI":"10.3390\/plants15060863","type":"journal-article","created":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T10:43:27Z","timestamp":1773225807000},"page":"863","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Yield, Nutritional, and Thermal Responses of Lettuce (Lactuca sativa) and Eggplant (Solanum melongena) Under Greenhouse Covers with Different UV-B Transmittance"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3510-0901","authenticated-orcid":false,"given":"Mauro","family":"Mori","sequence":"first","affiliation":[{"name":"Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5158-4072","authenticated-orcid":false,"given":"Eugenio","family":"Cozzolino","sequence":"additional","affiliation":[{"name":"Research Center for Cereal and Industrial Crops, Council for Agricultural Research and Economics (CREA), 81100 Caserta, Caserta, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7259-5953","authenticated-orcid":false,"given":"Ida","family":"Di Mola","sequence":"additional","affiliation":[{"name":"Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1596-203X","authenticated-orcid":false,"given":"Lucia","family":"Ottaiano","sequence":"additional","affiliation":[{"name":"Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-7741-1390","authenticated-orcid":false,"given":"Antimo","family":"Di Meo","sequence":"additional","affiliation":[{"name":"Institute of Applied Sciences and Intelligent Systems \u201cE. Caianiello\u201d of National Research Council of Italy (CNR ISASI), 80072 Pozzuoli, Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pasquale","family":"Mormile","sequence":"additional","affiliation":[{"name":"Institute of Applied Sciences and Intelligent Systems \u201cE. Caianiello\u201d of National Research Council of Italy (CNR ISASI), 80072 Pozzuoli, Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1993-4589","authenticated-orcid":false,"given":"Massimo","family":"Rippa","sequence":"additional","affiliation":[{"name":"Institute of Applied Sciences and Intelligent Systems \u201cE. Caianiello\u201d of National Research Council of Italy (CNR ISASI), 80072 Pozzuoli, Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,3,11]]},"reference":[{"key":"ref_1","unstructured":"Passchier, W.R., and Bosnjakovic, B.F.M. (1987). 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