članak: 1 od 1  
Helia
2009, vol. 32, br. 50, str. 85-90
jezik rada: engleski
neklasifikovan
doi:10.2298/HEL0950085K

Pathogenic and morphological variability of Plasmopara halstedii, the causal agent of downy mildew in sunflower
(naslov ne postoji na srpskom)
Department of Plant Pathology, University of Agricultural Sciences, Karnataka, India

Sažetak

(ne postoji na srpskom)
Isolates of P. halstedii collected from different parts of Karnataka, Maharashtra and Andhra Pradesh belong to a single race, i.e., race 100. Based on virulence pattern, they can be grouped into five different groups, A, B, C, D and E. Bangalore isolate was most virulent and Bidar isolate was least virulent. Morphological variations existed among the isolates with regard to the size of sporangiophores and sporangia. Sporangiophores were longer Dharwad isolate and sporangia were larger in Mysore and Latur isolates.

Ključne reči

Plasmopara halstedii; downy mildew; pathogenic variability

Reference

Abdullah, M.T. (1984) Sunflower hybrids resistant to Red River races of downy mildew. u: Proceedings of XI International Sunflower Conference, Mar De Plata, Argentina, 89
Gulya, T., Berlin, N., Lamey, A. (1994) Sunflower diseases. u: Berjlund D.R. (ur.) Sunflower Production Ext. Bulletin, North Dakota Agric. Experiment Station and North Dakota State Univ, str. 44-62
Kolte, S.J. (1985) Diseases of annual edible oilseed crops: Vol. 3. u: Sunflower, Safflower & Niger Seed Diseases, Boca Raton, USA: CRC Press, Inc
Patil, M.A., Mayee, C.D. (1990) Race identification of Indian P. halstedii, cause of downy mildew of sunflower. Indian Phytopathology, 43, str. 517-519