Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
VALIDATION OF DOWNCAST IN THE PREDICTION OF SPORULATION-INFECTION PERIODS OF PERONOSPORA DESTRUCTOR IN THE LOCKYER VALLEY
Autore:
FITZGERALD SM; OBRIEN RG;
Indirizzi:
QUEENSLAND DEPT PRIMARY IND,DIV PLANT PROTECT JOHNSTONE QLD 4859 AUSTRALIA QUEENSLAND DEPT PRIMARY IND,DIV PLANT PROTECT INDOOROOPILLY QLD 4068 AUSTRALIA
Titolo Testata:
Australian journal of experimental agriculture
fascicolo: 4, volume: 34, anno: 1994,
pagine: 537 - 539
SICI:
0816-1089(1994)34:4<537:VODITP>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
ONION DOWNY MILDEW; WEATHER VARIABLES; TEMPERATURE; SURVIVAL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
S.M. Fitzgerald e R.G. Obrien, "VALIDATION OF DOWNCAST IN THE PREDICTION OF SPORULATION-INFECTION PERIODS OF PERONOSPORA DESTRUCTOR IN THE LOCKYER VALLEY", Australian journal of experimental agriculture, 34(4), 1994, pp. 537-539

Abstract

The disease forecasting system 'Downcast' was developed in Canada to indicate sporulation-infection periods of Peronospora destructor (Berk. ) Caspary in onions. During 1989, observations were made of downy mildew development in trap plants and of disease progress in an unsprayedplot of onions in the Lockyer Valley, Queensland, and related back topredicted sporulation-infection periods using the forecaster. Over 113 days, there were 20 days when sporulation and infection were predicted, and of these 14 occurred during 4 weeks in July and August. Of 16 groups of trap plants exposed in the field, each for 7 days, 7 were subjected to predicted sporulation-infection periods. Two predicted sporulation-infection periods early in the season did not result in infection of trap plants or of plants in the field plot, probably due to absence of inoculum. Subsequently, groups of trap plants exposed in the field during predicted sporulation-infection periods became infected while those exposed when weather was unsuitable remained healthy. 'Downcast' shows promise as a technique for more effective management of disease caused by Peronospora destructor.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 16:56:59