science

Nufar basil

Nufar basil is a science 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 Nufar basil rather than just read about it. In short: Nufar basil (Ocimum basilicum 'Nufar') is the first variety of sweet basil (O. basilicum) that is resistant to fusarium wilt. Fusarium wilt is a disease that causes sudden wilting and death in multiple species, including basil.

Key takeaways

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

Reference excerpt

Nufar basil (Ocimum basilicum 'Nufar') is the first variety of sweet basil (O. basilicum) that is resistant to fusarium wilt. Fusarium wilt is a disease that causes sudden wilting and death in multiple species, including basil. It is caused by the fungus Fusarium oxysporum f. sp. basilicum, which attacks the xylem in the stem, blocking water uptake and leading to a characteristic sudden leaf wilt that does not respond to watering. Nufar basil is resistant to fusarium wilt, remaining asymptomatic even when infected. It was released in 1999 in Israel by the breeders of the Agricultural Research Organization, and commercialized by Genesis Seeds. The first resistant germ plasm was identified in Israel, by Reuveni et al. 1997 (3), Agricultural Research Organization, in several basil plants of a local variety that originally introduced from the United States and reselected in Israel for resistance to Fusarium oxysporum f. sp. Basilicum. Seeds were planted in the greenhouse in naturally highly infested soil and symptomless plants that survived in naturally infested soil were the source for F1 seeds of resistant germ plasm. Further selection tests to improve resistance were conducted up to additional generations in infested soil in the greenhouse. All individuals of the present genetic line remained symptomless, while all individual plants of the original susceptible cultivar defoliated 3 weeks after planting into infested soil, suggesting that the resistance may be a single, dominant gene.

References

External links "Picture of Nufar basil". Genesis Seeds. Archived from the original on 2006-12-07. Retrieved 2007-02-20. Nativ Dudai; David Chaimovitsh; Reuven Reuveni; Uzi Ravid; Olga Larkov; Eli Putievsky (December 1, 2002). "Breeding of Sweet Basil (Ocimum basilicum) Resistant to Fusarium Wilt Caused by Fusarium oxysporum f.sp. basilicum". Journal of Herbs, Spices & Medicinal Plants. 9 (2/3). Howorth Press: 45–51. doi:10.1300/j044v09n02_07. S2CID 85936768. Retrieved 2007-02-21. Reuven Reuveni; Nativ Dudai; Eli Putievsky; W. H. Elmer; R. L. Wick (1997). "Related article entitled "Evaluation and Identification of Basil Germ Plasm for Resistance to Fusarium oxysporum f. sp. basilicum". Plant Disease. 81 (9). apsjournals: 1077–1081. doi:10.1094/PDIS.1997.81.9.1077. PMID 30861963.

See also Agricultural Research In Israel

Illustrations

Worked examples

Example 1 — a first encounter with Nufar basil

Start with the simplest possible case. Write down what Nufar basil claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Nufar basil 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 Nufar basil 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 Nufar basil

In research: Nufar basil appears in science 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 Nufar basil 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: Nufar basil is common in secondary-school and first-year university syllabi. It links to neighbouring topics Herbs, Ocimum, Vegetable stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Nufar basil 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 Nufar basil in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nufar basil 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 Nufar basil out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nufar basil in simple terms?

Why does Nufar basil matter?

Because it connects several science 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 Nufar basil?

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 Nufar basil.