Lesson plan
Stem rot
Stem rot is a category of plant diseases in which a pathogen, usually a fungus or oomycete, infects and decays the stem of a crop plant, often resulting in lodging, reduced yield or plant death. The term is applied to diseases of many different crop species and is caused by a heterogeneous group of soil-borne and seed-borne pathogens; the most economically important include several species of Sclerotinia, Phytophthora, Fusarium, Pythium and Rhizoctonia on broadacre crops and Sclerotium oryzae on rice.
Article summary
Stem rot is a category of plant diseases in which a pathogen, usually a fungus or oomycete, infects and decays the stem of a crop plant, often resulting in lodging, reduced yield or plant death. The term is applied to diseases of many different crop species and is caused by a heterogeneous group of soil-borne and seed-borne pathogens; the most economically important include several species of Sclerotinia, Phytophthora, Fusarium, Pythium and Rhizoctonia on broadacre crops and Sclerotium oryzae on rice.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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