*Contribution no. 1426E (1968 series) from the Volcani Institute.
Persistence and transmission of Alternaria dauci (Kühn) Groves & Skolko in the semi-arid conditions of Israel*
Article first published online: 26 FEB 2008
Annals of Applied Biology
Volume 63, Issue 2, pages 289–294, June 1969
How to Cite
NETZER, D. and KENNETH, R. G. (1969), Persistence and transmission of Alternaria dauci (Kühn) Groves & Skolko in the semi-arid conditions of Israel. Annals of Applied Biology, 63: 289–294. doi: 10.1111/j.1744-7348.1969.tb05490.x
- Issue published online: 26 FEB 2008
- Article first published online: 26 FEB 2008
- Received 15 November 1968
Daucus maximus, Ridolfia segetum and Caucalis tenella, members of the Umbelliferae, were found to be foliage hosts of naturally occurring Alternaria dauci in Israel. A. dauci was also isolated from Daucus maximus seed.
When infected cultivated carrot petioles were stored dry for 3 months, A. dauci retained its ability to spore, which was lost, however, in alternating wet and dry conditions, an effect paralleled by the loss of mycelial viability in similar soil storage tests. A. dauci colonizing moribund foliage stayed viable longer when the foliage was on the surface than when buried in soil at depths of 10 and 20 cm.
Viable thick-walled hyphae of A. dauci were found in the inner pericarp layer of Japanese seeds from which infected seedlings developed.