National and University Library, Ljubljana (NUK)
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Anatomski pristop k identifikaciji korenin pravega kostanja (Castanea sativa Mill.) in gradna (Quercus petraea (Matt.) Liebl.) = Anatomical approach to identification of roots of sweet chestnut (Castanea sativa Mill.) and sessile oak (Quercus petraea (Matt.) Liebl.)Mrak, Tanja, 1978- ; Gričar, Jožica, gozdarkaLočevanje korenin po vrstah v mešanih sestojih nam omogoča, da razjasnimo vlogo, ki jo igra posamezna vrsta pri procesih v tleh. Najhitrejše in najcenejše metode za določevanje korenin so morfološke ... in anatomske, pri čemer pa mora biti morfološka določitev vsaj na začetku podprta z anatomsko preverbo. V članku opisujemo anatomske lastnosti korenin (< 5 mm v premeru) pravega kostanja in gradna, ki se v gozdnih združbah pogosto pojavljata skupaj. Velik del anatomskih znakov v lesu korenin se prekriva, najverjetneje zaradi dokaj ozke filogenetske sorodnosti rodov Castanea in Quercus. V nekaterih primerih so imele korenine gradna v lesu prisotna širša območja brez trahej, ki jih pri pravem kostanju nismo zasledili. Širina trakov, ki je pomemben ločevalni znak v lesu debla, v koreninah obravnavanih vrst ni bila uporabna, saj široki trakovi, ki jih najdemo v lesu debla pri hrastih, v koreninah še niso bili razviti. V koreninah pravega kostanja pa smo zasledili poleg enorednih tudi deloma dvo- in tro-redne trakove, za razliko od strogo enorednih v lesu debla. Glede na skorjo lahko korenine ločimo med sabo po pojavljanju sklereid, ki so bile v koreninah gradna prisotne že v koreninah, debelih samo 1 mm, v koreninah pravega kostanja pa jih nismo zasledili. Prizmatski kristali, ki obdajajo sklerenhim v skorji, so bili pri gradnu za razliko od pravega kostanja neenakomernih velikosti.Source: Folia biologica et geologica. - ISSN 1855-7996 (Letn. 57, št. 1, 2016, str. 63-72)Type of material - article, component part ; adult, seriousPublish date - 2016Language - slovenianCOBISS.SI-ID - 4619686
Author
Mrak, Tanja, 1978- |
Gričar, Jožica, gozdarka
Topics
lesnate rastline |
korenine |
anatomija rastlin |
identifikacija rastlin |
mešani gozdovi |
graden |
pravi kostanj |
Fagaceae
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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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Mrak, Tanja, 1978- | 24268 |
Gričar, Jožica, gozdarka | 22609 |
Source: Personal bibliographies
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