http://www.cnr.it/ontology/cnr/individuo/prodotto/ID12965
Seasonal variation of monoterpene emission from Malus domestica and Prunus avium (Articolo in rivista)
- Type
- Label
- Seasonal variation of monoterpene emission from Malus domestica and Prunus avium (Articolo in rivista) (literal)
- Anno
- 2001-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Rapparini F. Baraldi R. Facini O. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
- Le piante da frutto sono emettitori rilevanti di monoterpeni solo durante la fioritura, perciò per un periodo breve del ciclo vegetativo. L'emissione di questi idrocarburi biogenici dalle foglie è infatti molto bassa. (literal)
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto di Biometeorologia (IBIMET) Sez. di Bologna (literal)
- Titolo
- Seasonal variation of monoterpene emission from Malus domestica and Prunus avium (literal)
- Abstract
- Emission rates of monoterpenes released by apple (Malus domestica Bortkh) and cherry (Prunus avium L.) were estimated at different phonological stages. These measurements employed a dynamic flow-through Teflon chamber, sample collection onto cartridges filled with graphitised carbon and thermal desorption gas chromatography-mass spectrometry (GC-MS) for identification and quantification of the emitted volatiles. At full bloom the release of monoterpene hydrocarbons from cherry flowers was 1213 ng g-1 dry weight (DW) h-1, exceeding by approximately three-fold the emission rate of apple flowers (366 ng g-1 DW h-1). Observed seasonal variations in biogenic volatile organic compound (VOC) emissions ranged over several order of magnitudes. At fruit-set and ripening stages, in fact, the hydrocarbon emission dramatically decreased reaching the lowest values at harvest time when leaves were fully mature (3-9 ng g-1 DW h-1). Wide diversity in the composition of compounds from the species studied was also recorded. At blooming, linalool contributed significantly to the monoterpene emission from apple (94% of the emitted carbon) while ±-pinene and camphene represented on average more than 60% of the total emitted volatiles from cherry flowers. Among the monoterpenes identified in flowers, ±-pinene, camphene and limonene were also found in the foliage emission of both species. Fruit trees are relevant monoterpene emitters only at blooming and thus for a short period of the vegetative cycle. When leaves are fully developed, the carbon loss due to monoterpene emission related to the photosynthetically carbon gain is negligible. (literal)
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