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Titolo:
GROWTH AND YIELD RESPONSES OF SPRING WHEAT (TRITICUM-AESTIVUM L CV TURBO) GROWN IN OPEN-TOP CHAMBERS TO OZONE AND WATER-STRESS
Autore:
FANGMEIER A; BROCKERHOFF U; GRUTERS U; JAGER HJ;
Indirizzi:
INST PFLANZENOKOL,HEINRICH BUFF RING 38 D-35392 GIESSEN GERMANY
Titolo Testata:
Environmental pollution
fascicolo: 3, volume: 83, anno: 1994,
pagine: 317 - 325
SICI:
0269-7491(1994)83:3<317:GAYROS>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
AGRICULTURAL CROPS; ASSESSING IMPACTS; FIELD CHAMBERS; EXPOSURE; VEGETATION; INJURY; COTTON;
Keywords:
TRITICUM AESTIVUM; OZONE; DROUGHT STRESS; GROWTH; YIELD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
A. Fangmeier et al., "GROWTH AND YIELD RESPONSES OF SPRING WHEAT (TRITICUM-AESTIVUM L CV TURBO) GROWN IN OPEN-TOP CHAMBERS TO OZONE AND WATER-STRESS", Environmental pollution, 83(3), 1994, pp. 317-325

Abstract

Spring wheat (Triticum aestivum L.) cv. Turbo was exposed to different levels of ozone and water supply in open-top chambers in 1991. The plants were grown either in charcoal filtered air (CF), not filtered air (NF), in charcoal filtered air with proportional addition of ambientozone (CF1), or in charcoal filtered air with twice proportional addition of anmbient ozone (CF2). The menn seasonal ozone concentrations (24 h mean) were 2.3, 20.6, 17.3, and 24.5 nl litre(-1) for CF, NF, CF1, and CF2 treatments, respectively. Ozone enhanced senescence and reduced growth and yield of the wheat plants. At final harvest, dry weightreductions were mainly due to reductions in ear weight. Grain yield loss by ozone mainly resulted from depressions of 1000 grain weight, whereas numbers of ears per plant and of grains per ear remained unchanged Pollutants other than ozone did not alter the response to ozone, aswas obvious front comparisons between CF1 and NF responses. Water stress alone did not enhance senescence, but also reduced growth and yield. However, yield loss mainly resulted from reductions in the number of ears per plant; 1000 grain weight was not influenced by water stress. No water supply by ozone treatment interactions were detected for any of the estimated parameters.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 20:12:32