Effect of water on germination of Plasmopara viticola oospores

@inproceedings{Rossi2007EffectOW,
  title={Effect of water on germination of Plasmopara viticola oospores},
  author={Vittorio Rossi and Tito Caffi},
  year={2007}
}
The effect of moisture in grape leaf litter holding overwintering Plasmopara viticola oospores was investigated. Oospores were incubated under different regimes of water activity (aW 0·991 to 0·123) for 2 to 15 days and their ability to germinate and cause infection was determined using a sensitive leaf disk assay. Reduction of aW caused a significant shift in the infection dynamics, with maximum effect when aW ≤ 0·56. Dynamics of aW in the leaf litter under natural conditions were estimated… CONTINUE READING