Race identification in powdery mildew ( Sphaerotheca fuliginea ) on melon ( Cucumis melo ) in Japan

Autor:	K. Narisawa, M. Pitrat, H. Ezura, K. Hosoya
Přispěvatelé:	Génétique et Amélioration des Fruits et Légumes (GAFL), Institut National de la Recherche Agronomique (INRA)
Rok vydání:	1999
Předmět:	biology Melon Plant Science Fungus biology.organism_classification Conidium Race (biology) Horticulture Botany Genetics [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Agronomy and Crop Science Cucurbitaceae Cucumis Sphaerotheca Powdery mildew
Zdroj:	Plant Breeding Plant Breeding, Wiley, 1999, pp.259-262
ISSN:	1439-0523 0179-9541
DOI:	10.1046/j.1439-0523.1999.118003259.x
Popis:	Powdery mildew fungi isolated from single lesions on leaves of susceptible melon genotypes during semi-forcing and late-raising cultivation in Japan were tested. All 80 of the isolated strains were identified as Sphaerotheca fuliginea. The dominant fungus races found during semiforcing cultivation were race 5 in March (100%) and race 1 in May (100%), and race 1 (80%) during late-raising cultivation. Although the frequencies were quite low (13% in late August, but no isolation earlier in the season), two new races of S. fuliginea, which could not be identified by the differential genotypes, appeared during late-raising cultivation. These results suggest that the resistance gene to races 1 and 5 of S. fuliginea should be introduced into the breeding materials in Japan.
Databáze:	OpenAIRE
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