During a survey of tropospheric ozone pollution carried out using tobacco plants (Nicotiana tabacum L.) cv. Bel-W3, ozone-supersensitive, and cv. Bel-B, ozone-resistant, as bioindicators, the effectiveness of the traditional biomonitoring method, based on the use of adult plants, was compared with an innovative miniaturized kit of seedlings. The ratio of foliar and cotyledonar necrosis, respectively, was estimated as ozone injury rate. The miniaturized kit proved to be advantageous, since seedlings need only easy growth procedures and a large number of individuals can be placed in a small space, supplying good data amounts for statistical elaboration. Moreover, correlation studies among cotyledonar and foliar injury index and ozone levels monitored through physicochemical measurements and results of analysis of variance tests highlighted the high sensitivity of the innovative methodology.
|Autori:||Toncelli ML; Lorenzini G|
|Titolo:||Comparative evaluation of biomonitoring techniques of tropospheric ozone|
|Anno del prodotto:||1999|
|Digital Object Identifier (DOI):||10.1023/A:1005976125170|
|Appare nelle tipologie:||1.1 Articolo in rivista|