What is it about?
In this study, we evaluated the resistance level of 38 potato cultivars to early blight (Alternaria solani). We identifed several cultivars that possesed slow blighting to early blight. We noted that slow blighting cultivars were mostly late maturity. This is particualy importatnt for regulating the amount of fungicides use to control the disease.
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Why is it important?
We used a multivariate approach coupled several validations via the use of graphical models and non-parameteric analysis. We argue in the paper that the conventional way of evaluating quantitvately inherited resistance via the use of for example univariate analysis of variance of epidemiological parameters like rate of infection, relative area under the disease progress curve (rAUDPC), etc. are insuffucient and may lead to erroneous conclusion. We therefore, recommended the use of several epidemiolgical parameters in a multivariate analysis.
Perspectives
I am really excited about this article. In analysing and writng this article I have learnt a lot of new statistical methods like graphical models, cluster analysis,etc. With the way we used different techniques to classify the resistance of the potato cultivars to early blight, I am very hopeful anyone who reads this paper will change his/her opinion in the use of single epidemiological parameters to classify disease resistance.
Dr isaac Kwesi Abuley
Aarhus Universitet
Read the Original
This page is a summary of: Resistance status of cultivated potatoes to early blight (Alternaria solani
) in Denmark, Plant Pathology, August 2017, Wiley,
DOI: 10.1111/ppa.12744.
You can read the full text:
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