biology

High plains disease

High plains disease is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand High plains disease rather than just read about it. In short: High plains disease is a viral disease afflicting wheat and maize. It is caused by the negative-sense ssRNA virus High Plains wheat mosaic emaravirus.

Key takeaways

High plains disease belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect High plains disease to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of High plains disease from memory before moving on to harder problems.

Reference excerpt

High plains disease is a viral disease afflicting wheat and maize. It is caused by the negative-sense ssRNA virus High Plains wheat mosaic emaravirus. Symptoms are similar to Wheat streak mosaic virus, with leaf veins showing yellow flecks and streaks, followed by leaf margin purpling in maize. Depending on the timing of infection, stunting and death occur. Plants can be doubly infected with high plains virus and wheat streak mosaic virus.

Vector and hosts High plains virus is spread by wheat curl mites, Aceria tosichella, which are small enough to be carried on air currents. Sandbur grass species are a known host for the wheat curl mite. High plains disease also may occur on barley, oats and rye, and on drooping brome Bromus tectorum and yellow foxtail Setaria pumila grasses.

Management An ELISA test is available to detect high plains disease. Infection can be avoided by elimination of volunteer crop and wild host plants prior to planting. Resistant varieties of maize exist.

References

External links "High plains wheat mosaic emaravirus (high plains disease)". Centre for Agriculture and Bioscience International Invasive Species Compendium. 2019-11-20. Retrieved 2020-12-07.

Worked examples

Example 1 — a first encounter with High plains disease

Start with the simplest possible case. Write down what High plains disease claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to High plains disease before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about High plains disease ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of High plains disease

In research: High plains disease appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses High plains disease in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: High plains disease is common in secondary-school and first-year university syllabi. It links to neighbouring topics Maize diseases, Viral plant disease stubs, Viral plant pathogens and diseases, so understanding it makes those chapters shorter.
In everyday life: Look for High plains disease outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study High plains disease in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what High plains disease means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain High plains disease out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is High plains disease in simple terms?

High plains disease is a viral disease afflicting wheat and maize. It is caused by the negative-sense ssRNA virus High Plains wheat mosaic emaravirus.

Why does High plains disease matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study High plains disease?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on High plains disease.