Opening book details…
Can I read The effect of fungal density on fungicide dose–response curves in barley powdery mildew ( Erysiphe graminis f.sp. hordei ) on EtoBox?
The effect of fungal density on fungicide dose–response curves in barley powdery mildew ( Erysiphe graminis f.sp. hordei ) by Damgaard; Nielsen is a Agricultural and Biological Sciences article available to read on EtoBox.
What is The effect of fungal density on fungicide dose–response curves in barley powdery mildew ( Erysiphe graminis f.sp. hordei ) about?
The effect of inoculation density on fungicide dose–response curves and the estimated ED~50~ value (the fungicide concentration needed to halve the infected leaf area relative to the infected area of leaves that had not been treated with a fungicide) were investigated theoretically, and predictions were tested experimentally using powdery mildew of barley (__Erysiphe graminis__ [syn. __Blumeria graminis__] f.sp. __hordei__). A host leaf was assumed to consist of a number of independent compartments, in each of which only a single fungal spore could germinate successfully. The number of fungal spores landing in a compartment was assumed to be Poisson‐distributed. The spores were assumed to vary in their sensitivity toward a fungicide, and the sensitivity of the spore population was assumed to be normally distributed around a mean sensitivity. Under these assumptions, the ED~50~ value was shown to be a positively biased estimate of the mean sensitivity in the fungal population, and the bias increased with inoculum density. Consequently, the estimated ED~50~ value is expected to vary between experiments and laboratories if the inoculation density varies over a considerable range. The
Who reads The effect of fungal density on fungicide dose–response curves in barley powdery mildew ( Erysiphe graminis f.sp. hordei )?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Damgaard; Nielsen
- Publisher
- John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0032-0862)
- Published
- 1999
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)