Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
CHARACTERIZATION OF PATHOTYPES OF CEREAL CYST NEMATODES, HETERODERA SPP IN SWEDEN
Autore:
IREHOLM A;
Indirizzi:
SWEDISH UNIV AGR SCI,DEPT PLANT PROTECT SCI,BOX 44 S-23053 ALNARP SWEDEN
Titolo Testata:
Nematologica
fascicolo: 3, volume: 40, anno: 1994,
pagine: 399 - 411
SICI:
0028-2596(1994)40:3<399:COPOCC>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
AVENAE;
Keywords:
HETERODERA-AVENAE; GOTLAND STRAIN OF HETERODERA-AVENAE; HETERODERA-HORDECALIS; HETERODERA-BIFENESTRA; CEREAL CYST NEMATODES; PATHOTYPES; RESISTANCE; VIRULENCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
A. Ireholm, "CHARACTERIZATION OF PATHOTYPES OF CEREAL CYST NEMATODES, HETERODERA SPP IN SWEDEN", Nematologica, 40(3), 1994, pp. 399-411

Abstract

Pathotype tests were carried out with a total of 97 populations of Hekrodera avenae, the Gotland strain of H. avenae, H. hordecalis and H. bifenestra. The populations were grouped by their virulence on five barley differentials (resistance genes): Varde (Rha), Emir (Rha''E''), Ortolan (Rha1), KVL 191 (Rha2) and Morocco C.I. 3902 (Rha3). Ten reaction patterns could be distinguished. With the populations grouped according to morphological/taxonomic considerations, several groups could be further subdivided by reactions on additional differentials. Some ofthe tested populations did not reproduce on the oat differentials. None of the differentials showed complete resistance to all nematode populations. Virulence frequencies on Rha''E'', Rha1, Rha2 and Rha3 were calculated for populations of Heterodera avenae and the Gotland strain. In spite of the complexity due to the occurrence of more than one species and the reactions of additional differentials there was considerable agreement with the results of earlier surveys. Pathotypes Ha11 and Ha12 were dominant, followed by the main pathotypes G(West) and G(East) of the Gotland strain.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 13:37:56