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Nastanek ranitvenih tkiv pri ostrolistnem javorju (Acer platanoides L.) po površinskem poškodovanju debla : diplomsko delo - univerzitetni študij = Formation of wound tissues in superficially injured trunks of Norway maple (Acer platanoides L.) : graduation thesis - university studiesBajuk, EvaPri ostrolistnem javorju (Acer platanoides L.), kjer je bila z lesnega cilindra odstranjena skorja ali celo kambijeva cona, se je opazovalo nastanek ranitvenih tkiv. Proučevano je bilo zaporedje ... histoloških sprememb ter vpliv sezone poškodovanja in vitalnosti dreves na proces preraščanja poškodb. V trehobdobjih rastne sezone 2005 sta bili vsakič poškodovani po dve zdravi in po dve prizadeti drevesi. Na vsakem drevesu je bilo narejenih 8-9 poškodb. Vsake 3-4 dni, vsaj šest tednov, so bila vzorčena novo nastala ranitvena tkivain preiskana s svetlobnim mikroskopom. Ugotovljeno je bilo, da je sam potek dogodkov odvisen od globine poškodbe, to je tkiv, ki se med poškodovanjem pretrgajo in posledično tudi tkiv, ki ostanejo na eksponirani površini. Glede na ta tkiva so bili vzorci poškodb razdeljeni v tri tipe. Preraščanje najglobjih poškodb, kjer je bila skupaj s skorjo odstranjena tudi kambijeva cona, je potekalo preko naslednjih faz. Inicialna faza je pomenila nastanek kalusnih celic, sledil je nastanek ranitvene kambijeve cone v sredini kalusa, zatem ali včasih vzporedno s prejšnjo fazo je potekal nastanek ranitvenega felogena. Ko sta oba ranitvena meristema sklenjena, se je poškodba uspešno prerasla in začel se je nastanek ranitvenih derivatov obeh meristemov; periderm, ranitveni les in skorja. Zaporedje histoloških dogodkov je neodvisno od časa poškodovanja in vitalnosti dreves, oba dejavnika pa vplivata na hitrost nastajanja ranitvenih tkiv in s tem na hitrost preraščanja poškodb.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [E. Bajuk], 2009Language - slovenianCOBISS.SI-ID - 2424742
Author
Bajuk, Eva
Other authors
Oven, Primož |
Marion, Lena
Topics
ostrolistni javor(Acer platanoides L.) |
mehanske poškodbe |
kalus |
preraščanje |
sezona |
vitalnost |
ranitvena tkiva
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Library | Call number – location, accession no. ... | Copy status |
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BF, Forestry Library, Ljubljana | BFGO Knjižnica DN 1176 IN: 22009000119 |
available - outside loan, loan period: 1 days |
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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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Bajuk, Eva | ![]() |
Oven, Primož | 11223 |
Marion, Lena | 24452 |
Source: Personal bibliographies
and: SICRIS
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