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Zveza med vsebnostjo kalija, magnezija kalcija in mangana v živih tkivih ter prizadetostjo jelke (Abies alba Mill.) in anatomsko-fiziološka interpretacija električne upornosti : doktorska disertacija = Relationship between potassium, magnesium, calcium, and manganese content in living tissues and state of health of silver fir (Abies alba Mill.) with anatomical and physiological interpretation of electrical resistance : dissertation thesisKrižaj, BojanaNa 42 neprizadetih in različno prizadetih jelkah (Abies alba Mill.) so bile opravljene v več terminih dormantnega in rastnega obdobja primerjalne raziskave prirastnih in anatomskih značilnosti živih ... tkiv, meritve koncentracij kalija, magnezija, kalcija in mangana v njih ter meritve električne upornosti (EU) živih tkiv. Za neprizadeta drevesa so značilna debelejša živa tkiva, zlasti prevodni floem in kambijeva cona (KC) ter višje koncentracije K v tkivih. Prizadetost ni vplivala na vsebnost Mg in Mn, koncentracije Ca pa so bile višje pri prizadetih jelkah. Koncentracije preiskovanih elementov so bile najvišje v fiziološko najaktivnejših tkivih, t.j.v KC in prevodnem floemu, v smeri proti zunanji živi skorji so se postopno nižale, na meji KC z zrelim lesom pa so skokovito padle. Debelina KC in koncentracija K je bila v dormantnem obdobju najmanjša ter izmerjena EU najvišja. Debelina KC in koncentracija K je bila v rastnem obdobju največja ter EU najnižja. S prizadetostjo se debelina živih tkiv, predvsem prevodnega floema in KC, tanjša, znižuje se koncentracija K ter viša EU. Mg, Mn, Ca niso pokazali značilnega sezonskega nihanja koncentracij in niso vplivali na odčitke EU. EU neposredno in objektivno nakazuje delitveno aktivnost KC in vsebnost K v živih tkivih ter s tem tudi kondicijo drevja in izglede za njegovo preživetje.Type of material - dissertation ; adult, seriousPublication and manufacture - Ljubljana : [B. Križaj], 1997Language - slovenianCOBISS.SI-ID - 108425
Author
Križaj, Bojana
Other authors
Torelli, Niko
Topics
jelka |
mineralna prehrana |
motnje |
drevesna skorja |
les |
kambij |
kalij |
magnezij |
kalcij |
mangan |
vsebnost |
prirast |
električna upornost |
vlažnost |
disertacije
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GS II 0000474579 glavno skladišče GS II 474579 glavno skladišče |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Križaj, Bojana | 11394 |
Torelli, Niko | 01641 |
Source: Personal bibliographies
and: SICRIS
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