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Titolo:
3 METALAXYL SENSITIVITY LEVELS IN AUSTRALIAN ISOLATES OF PSEUDOPERONOSPORA-CUBENSIS (BERK ET CURT) ROST
Autore:
OBRIEN RG; WEINERT MP;
Indirizzi:
QUEENSLAND DEPT PRIMARY IND,80 MEIERS RD INDOOROOPILLY QLD 4068 AUSTRALIA
Titolo Testata:
Australian journal of experimental agriculture
fascicolo: 4, volume: 35, anno: 1995,
pagine: 543 - 546
SICI:
0816-1089(1995)35:4<543:3MSLIA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHYTOPHTHORA-INFESTANS; DOWNY MILDEW; RESISTANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
R.G. Obrien e M.P. Weinert, "3 METALAXYL SENSITIVITY LEVELS IN AUSTRALIAN ISOLATES OF PSEUDOPERONOSPORA-CUBENSIS (BERK ET CURT) ROST", Australian journal of experimental agriculture, 35(4), 1995, pp. 543-546

Abstract

Isolates of Pseudoperonospora cubensis from the Murrumbidgee Irrigation Area (MIA), New South Wales, and the Burdekin district, Queensland,were compared for metalaxyl sensitivity with a known sensitive isolate. Several different fungicide application techniques were used (foliar sprays, soil drenches, floating leaf discs), but the relativity of metalaxyl sensitivity between isolates was maintained. Isolates from the Burdekin district were highly resistant and came from fields where control of downy mildew was poor. Isolates from the MIA showed intermediate sensitivity but there was no apparent loss of field control. In afloating disc experiment the EC(50) values of sensitive, intermediate, and resistant isolates were in the ranges >0.01-<0.1, >1-<10, and >100 mu g metalaxyl/mL, respectively.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 16:41:42