Journalartikel

Jahr der Veröffentlichung: 1981

Seiten: 25-29

Zeitschrift: Die Gartenbauwissenschaft

Bandnummer: 46

Heftnummer: 1

ISSN: 0016-478X

Verlag: Ulmer

Abstract: 
Examination of leaves from various cultivars of black, red and white currant, as well as gooseberry revealed significant differences in regard to their susceptibility to American gooseberry mildew (S. mors-uvae) under field conditions. The youngest leaves of all susceptible cultivars showed fungus development. With increasing leaf development there was increasing resistance to S. mors-uvae. A disease gradient from top to bottom leaves was observed. On 1 yr old shoots the number of leaves with macroscopically visible mildew development varied between 0 and 14.8. This reproducible susceptibility gradient can serve for characterization of Ribes cultivars in regard to their overall resistance to S. mors-uvae. The grade of shoot infection usually corresponded to that of leaf infection; however, there were cases with heavy leaf infection but practically no shoot infection. Cleistothecia usually were observed on shoot tips down to 12 cm of the terminal buds.

Harvard-Zitierstil: TEMMEN, K., GRUPPE, W. and SCHLOSSER, E. (1981) RESISTANCE OF PLANTS TO POWDERY MILDEW .1. SUSCEPTIBILITY OF LEAVES AND SHOOTS OF RIBES SPP TO POWDERY MILDEW (SPHAEROTHECA MORS-UVAE), GARTENBAUWISSENSCHAFT, 46(1), pp. 25-29

APA-Zitierstil: TEMMEN, K., GRUPPE, W., & SCHLOSSER, E. (1981). RESISTANCE OF PLANTS TO POWDERY MILDEW .1. SUSCEPTIBILITY OF LEAVES AND SHOOTS OF RIBES SPP TO POWDERY MILDEW (SPHAEROTHECA MORS-UVAE). GARTENBAUWISSENSCHAFT. 46(1), 25-29.