<?xml version='1.0' encoding='UTF-8'?><codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5"><docDscr><citation><titlStmt><titl>Sun-induced fluorescence in responses to structural and physiological effects caused by the Cercospora leaf spot in sugar beet</titl><IDNo agency="DOI">doi:10.26165/JUELICH-DATA/FOQOFI</IDNo></titlStmt><distStmt><distrbtr source="archive">Jülich DATA</distrbtr><distDate>2026-03-24</distDate></distStmt><verStmt source="DVN"><version date="2026-03-24" type="RELEASED">1</version></verStmt><biblCit>Konche, Deepthi; Romero, Juan Manuel; Ispizua Yamati, Facundo Ramón; Boemer, Jonas; Askin, Ilgaz; Jedmowski, Christoph; Mahlein, Anne-Katrin; Rascher, Uwe; Muller, Onno, 2026, "Sun-induced fluorescence in responses to structural and physiological effects caused by the Cercospora leaf spot in sugar beet", https://doi.org/10.26165/JUELICH-DATA/FOQOFI, Jülich DATA, V1</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl>Sun-induced fluorescence in responses to structural and physiological effects caused by the Cercospora leaf spot in sugar beet</titl><IDNo agency="DOI">doi:10.26165/JUELICH-DATA/FOQOFI</IDNo></titlStmt><rspStmt><AuthEnty affiliation="FZJ/IBG-2">Konche, Deepthi</AuthEnty><AuthEnty affiliation="FZJ/IBG-2">Romero, Juan Manuel</AuthEnty><AuthEnty affiliation="IFZ, Goettingen">Ispizua Yamati, Facundo Ramón</AuthEnty><AuthEnty affiliation="IFZ, Goettingen">Boemer, Jonas</AuthEnty><AuthEnty affiliation="FZJ/IBG -2">Askin, Ilgaz</AuthEnty><AuthEnty affiliation="FZJ/IBG-2">Jedmowski, Christoph</AuthEnty><AuthEnty affiliation="IFZ, Goettingen">Mahlein, Anne-Katrin</AuthEnty><AuthEnty affiliation="FZJ/IBG-2">Rascher, Uwe</AuthEnty><AuthEnty affiliation="FZJIBG-2">Muller, Onno</AuthEnty></rspStmt><prodStmt><grantNo agency="(DFG, German Research Foundation)">491111487</grantNo><grantNo agency="Strukturwandel-Projekt BioökonomieREVIER">031B0918A</grantNo><grantNo agency="BMEL">28DK108C20</grantNo></prodStmt><distStmt><distrbtr source="archive">Jülich DATA</distrbtr><contact affiliation="FZJ/IBG-2" email="d.konche@fz-juelich.de">Konche, Deepthi</contact><depositr>Grygosch, Lars</depositr><depDate>2025-10-24</depDate></distStmt></citation><stdyInfo><subject><keyword>Agricultural Sciences</keyword><keyword>canopy SIF, SIF yield, PSII efficiency, Cercospora leaf spot, Field phenotyping</keyword></subject><abstract>This dataset includes measurements in sugar beet crop collected during field experiments investogating the effects of Cercospors leaf spot infection. The dataset integrated measurements from both active and passive chlorophyll fluorescence techniques. Active fluorescence parameters, including PSII efficiency obtained using the light induced fluorescence transient (LIFT) system. Passive fluorescence measurements including red and far-red sun-induced fluorescence (SIF) and range of reflectance-based vegetation indices (VIs) using a fluorescence (FloX) box. The dataset further estimates SIF Yield using the escape fraction (fesc) derived from reflectance data and fraction of absorbed photosynthetically active radiation (fAPAR). Complementary agronomic and disease related observations like final yield measurements and disease severity scores (DSS) are also included.</abstract><sumDscr><collDate cycle="P1" event="start" date="2023-08-11">2023-08-11</collDate><collDate cycle="P1" event="end" date="2023-09-06">2023-09-06</collDate><dataKind>Field experimental dataset including active and passive chlorophyll fluorescence measurements.</dataKind></sumDscr></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/></dataAccs><othrStdyMat/></stdyDscr><otherMat ID="f49133" URI="https://data.fz-juelich.de/api/access/datafile/49133" level="datafile"><labl>1_Metadata.zip</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/zip</notes></otherMat><otherMat ID="f49132" URI="https://data.fz-juelich.de/api/access/datafile/49132" level="datafile"><labl>2_Processed.zip</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/zip</notes></otherMat><otherMat ID="f49131" URI="https://data.fz-juelich.de/api/access/datafile/49131" level="datafile"><labl>3_Products.zip</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/zip</notes></otherMat><otherMat ID="f49129" URI="https://data.fz-juelich.de/api/access/datafile/49129" level="datafile"><labl>Metadata.xlsx</labl><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</notes></otherMat></codeBook>