Ocena poškodovanosti dreves z elektronsko paramagnetno resonanco Mn2+ ionov

Stolič, Zorka (author), Batič, Franc (author), Kalan, Polona (author), Nemec, Marjanca (author), Schara, Milan Valter (author)

Izmerili smo EPR spektre Mn2+ v smrekovih iglicah in listih nekaterih listavcev. Pri nepoškodovanih drevesih smo ugotovili značilen sekstet z intenziteto, ki je sorazmerna kolicini Mn v raztopini. V poškodovanih drevesih je ta, mobilna oblika Mn2+, bistveno manjša. Dodatno smo ugotovili, da so EPR spektri vsota dveh ali treh komponent, kar pomeni, da manganovi ioni ali pa njegovi kompleksi niso homogeno razporejeni po listu, ampak so razporejeni v predele z različno koncentracijo Mn2+. S starostjo iglic ostanejo razmerja izmerjenih utežnih deležev komponent zelo podobna. Kolicina celokupnega mangana pa s starostjo raste tako pri zdravih kot tudi poškodovanih drevesih.

• Language: Slovenian
• Keywords: elektronska paramagnetna resonanca, EPR Mn2+, smreka, iglica, poškodovanost drevesa, zdravstveno stanje
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Year: 1998
• Number of pages: Str. 97-112
• Numbering: Št. 55
• PID: 20.500.12556/RUL-69659
• UDC: 630*18:630*42
• ISSN on article: 0351-3114
• COBISS.SI-ID: 387238
• Publication date in RUL: 10.07.2015

Record is a part of a journal

• Title: Zbornik gozdarstva in lesarstva. forest and wood science & technology
• Shortened title: Zb. gozd. lesar.
• Publisher: Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
• ISSN: 0351-3114
• COBISS.SI-ID: 6206978

Secondary language

• Language: English
• Title: Damage estimation of trees with electron paramagnetic resonance of Mn (II) ions

Abstract

The EPR spectra of Mn2+ in spruce needles and leaves of broad - leaved trees were measured. A typical Mn2+ hyperfine sextet with intensity proportional to the quantity of Mn in solution was obtained for undamaged trees. A considerably smaller amount of this type of Mn2+ EPR was found Mn2+ for damaged trees. It was also found that EPR spectra are a sum of two or three components representing different local concentration of Mn2+ ions. The weight ratios of the measured components remains similar with age. The amount of total manganese increases with age for undamaged and damaged trees.

• Keywords: EPR Mn2+, spruce, needles