14
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Ð 4PERX 7GMIRGI 'IRXIV 7 9QIE Ð 7[IHIR (ITEVXQIRX SJ &MSPSK] 9RMZIVWMX] SJ .SIRWYY *- .SIRWYY *MRPERH %FWXVEGX 8LI IJJIGXW SJ YPXVEZMSPIX 9: VEHMEXMSR SR XLI TLSXSW]RXLIXMG ERH 9:WGVIIRMRK TMKQIRXW MR RIIHPIW SJ 7GSXW TMRI 4MRYW W]PZIWXVMW 0 WETPMRKW [IVI WXYHMIH MR E 9:I\GPYWMSR ´IPH GLEQFIV I\TIVMQIRX MR RSVXLIVR *MRPERH 2 HYVMRK § 8LI GLEQFIVW LIPH ´PXIVW XLEX I\GPYHIH FSXL 9:& ERH 9:% SRP] 9:& XVERWQMXXIH EPP 9: SV PEGOIH ´PXIVW %REP]WIW SJ GSRXVSP RIIHPIW RS ´PXIV ERH TSP]IXLIRI ´PXIV WLS[IH XLEX XLI ´VWX GLERKIW XS SGGYV MR WTVMRK IRH SJ %TVMP [EW ER EFVYTX MRGVIEWI MR XLI ITS\MHEXMSR WXEXI )47 SJ XLI \ERXLSTL]PP G]GPI TMKQIRXW PMOIP] MR VIPEXMSR [MXL XLI FIKMRRMRK SJ XLI TLSXSW]RXLIXMG EGXMZMX] 8LI GSRGIRXVEXMSR SJ GLPSVSTL]PP PYXIMR RIS\ERXLMR EGEVSXIRI FGEVSXIRI ERH XLI WM^I SJ XLI \ERXLSTL]PP G]GPI TSSP ZMSPE\ ERXLMR ERXLIVE\ERXLMR ^IE\ERXLMR :%> GLERKIH SRP] PEXIV [LIR RIIHPIW VIEGLIH XLIMV WYQQIV TLSXSW]RXLIWMW WXEXI )\GPYWMSR SJ 9: VEHMEXMSR WMKRM´GERXP] EJJIGXIH XLI \ERXLSTL]PP G]GPI FYX RSX XLI SXLIV TLSXSW]RXLIXMG TMKQIRXW EREP]WIH -RXIVIWXMRKP] XLI IJJIGXW SR \ERXLSTL]PPW [IVI HITIRHIRX SR XLI WEQTPMRK HEXI 9RHIV 9:%&I\GPYWMSR XLI )47 [EW MRGVIEWIH ERH :%> TSSP WM^I [EW YRGLERKIH MR %TVMP [LIVIEW )47 VIQEMRIH YRGLERKIH ERH XLI :%> TSSP WM^I [EW VIHYGIH MR 1E] ERH .YRI 8LI I\MWXIRGI SJ X[S WYWXEMRIH ERH EGXMZI ERXIRRE QSHIW HYVMRK [MRXIV ERH WYQQIV GSYPH FI ER I\TPEREXMSR JSV XLI WTIGM´G 9:I\GPYWMSR IJJIGX MR XLI HMJJIVIRX WIEWSR % LMKL TIVJSVQERGI PMUYMH GLVSQEXSKVETL] EREP]WMW SJ WSPYFPI TLIRSPMGW WLS[IH XLEX XLI I\GPYWMSR SJ 9:%& VEHMEXMSR GEYWIH E WMKRM´GERX IJJIGX SR ´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´G ERH HIXIGXEFPI SRP] YRHIV WXVIWWJYP WTVMRK GSRHMXMSRW JVII^MRK XIQTIVEXYVIW ERH LMKL MVVEHMERGI HYI XS WRS[ VIµIGXMSR 8LI IJJIGX SR XLI \ERXLSTL]PP G]GPI GSYPH FI E HMVIGX GSRWIUYIRGI SJ 9: XVIEXQIRXW SV ER MRHMVIGX GSRWIUYIRGI SJ XLI GLERKIH µEZSRSMH GSQTSWMXMSR SV E GSQFMREXMSR SJ FSXL 'SVVIWTSRHIRGI 1MRRE 8YVYRIR JE\ +PSFEP 'LERKI &MSPSK] z HSM N\ V 8LI %YXLSVW .SYVREP GSQTMPEXMSR V &PEGO[IPP 4YFPMWLMRK 0XH

Effects of ultraviolet (UV) exclusion on the seasonal concentration of photosynthetic and UV-screening pigments in Scots pine needles

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