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Titolo:
GROWTH-RESPONSES AND FOLIAR SENSITIVITIES OF NATIVE HERBACEOUS SPECIES TO OZONE EXPOSURES
Autore:
BERGMANN E; BENDER J; WEIGEL HJ;
Indirizzi:
BUNDESFORSCH ANSTALT LANDWIRTSCHAFT,INST PROD & OKOTOXIKOL,BUNDESALLEE 50 D-38116 BRAUNSCHWEIG GERMANY
Titolo Testata:
Water, air and soil pollution
fascicolo: 3, volume: 85, anno: 1995,
pagine: 1437 - 1442
SICI:
0049-6979(1995)85:3<1437:GAFSON>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Keywords:
OZONE; NATIVE FLORA; PREMATURE SENESCENCE; GROWTH FOLIAR SYMPTOMS; SEED PRODUCTION; MALVA SYLVESTRIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
E. Bergmann et al., "GROWTH-RESPONSES AND FOLIAR SENSITIVITIES OF NATIVE HERBACEOUS SPECIES TO OZONE EXPOSURES", Water, air and soil pollution, 85(3), 1995, pp. 1437-1442

Abstract

This paper reports on open-top chamber studies investigating the effects of different O-3 exposures on native herbaceous plant species. Plants were grown up from seeds, potted into natural soils and exposed tonear-ambient O-3 levels during one growing season. A wide range of visible symptoms was apparent during the exposures. Species such as Rumex obtusifolius, Senecio vulgaris or Sonchus asper showed leaf colorations (e.g reddish pigmentation) that probably indicate a non-specific stress response. In other species especially of the genera Malva and Cirsium the symptoms produced by O-3 appeared to be similar to those characteristic for O-3-specific foliar injury (stippling flecking). In almost all species tested O-3 caused premature leaf senescence, which was sometimes associated with premature leaf abscission. However, earlier senescence did not necessarily result in changes in plant growth Of all species tested, Malva sylvestris was found to be the most sensitive in terms of growth reduction and lower seed production.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 10:28:57