science

Saccharum sinense

Saccharum sinense 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 Saccharum sinense rather than just read about it. In short: Saccharum sinense or Saccharum × sinense, synonym Saccharum × barberi, sugarcane, is strong-growing species of grass (Poaceae) in the genus Saccharum. It originated in India and was originally cultivated in Northern India and China, where it is still commonly grown.

Key takeaways

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

Reference excerpt

Saccharum sinense or Saccharum × sinense, synonym Saccharum × barberi, sugarcane, is strong-growing species of grass (Poaceae) in the genus Saccharum. It originated in India and was originally cultivated in Northern India and China, where it is still commonly grown. It is a more primitive form of sugarcane with a hybrid origin from Saccharum officinarum and Saccharum spontaneum species of cane. A number of clones exists that are often included in the S. officinarum species as the Pansahi group. The most notable member of which is the Uba variety of cane. They are a perennial plant that grows in erect clumps that can reach up to 5 meters in height and have a red cane with a diameter of 15 mm to 30 mm.

Origin

Saccharum Barberi originated in India. The second domestication center of sugarcane is India, Indochina, southern China, and Taiwan where S. sinense was a primary cultigen of the Austronesian peoples. Words for sugarcane exist in the Proto-Austronesian languages in Taiwan, reconstructed as *təbuS or **CebuS, which became *tebuh in Proto-Malayo-Polynesian. It was one of the original major crops of the Austronesian peoples from at least 5,500 BP. Introduction of the sweeter S. officinarum may have gradually replaced it throughout its cultivated range in Island Southeast Asia. From Island Southeast Asia, S. officinarum was spread eastward into Polynesia and Micronesia by Austronesian voyagers as a canoe plant by around 3,500 BP. It was also spread westward and northward by around 3,000 BP to China and India by Austronesian traders, where it further hybridized with Saccharum sinense. From there it spread further into western Eurasia and the Mediterranean.

Cultivation

This variety of sugarcane is noted for being hardier than other varieties as well as being better adapted to poor soils and dry conditions. It tends to be leafier, with relatively hard thin red coloured canes. The plant does best in temperatures that range between 20 °C – 32 °C but is capable of tolerating ranges from 12 °C – 38 °C and very short periods of light frosts. The plant grows best in well-drained soil with a pH range of 5–6. The plant is still extensively cultivated in the Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Yunnan, and Zhejiang regions of China, and Taiwan.

Specimens and clones Specimens of this cane were sent to Calcutta, India in 1796 from where specimens were sent to Durban, South Africa to help establish the sugar industry there. From Durban specimens were sent to Mauritius in the late 1800s where they adopted the name Uba due to arriving in a water soaked box that had washed off the boxes' original wording "Durban" and leaving only the letters "uba". The cultivation of the heavier yet less valuable Uba variety (due to its lower sucrose content) in Mauritius was instrumental in events that led up to the Uba riots of 1937. The clone Tekcha of this variety was cultivated in Taiwan. Clones of S. sinense have been used in various breeding programs that have produced many modern varieties of modern sugarcanes.

See also Domesticated plants and animals of Austronesia

References

Illustrations

Worked examples

Example 1 — a first encounter with Saccharum sinense

Start with the simplest possible case. Write down what Saccharum sinense 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 Saccharum sinense 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 Saccharum sinense 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 Saccharum sinense

In research: Saccharum sinense 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 Saccharum sinense 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: Saccharum sinense is common in secondary-school and first-year university syllabi. It links to neighbouring topics Austronesian agriculture, Crops originating from Asia, Flora of China, so understanding it makes those chapters shorter.
In everyday life: Look for Saccharum sinense 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 Saccharum sinense in 20 minutes

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

Frequently asked questions

What is Saccharum sinense in simple terms?

Why does Saccharum sinense 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 Saccharum sinense?

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 Saccharum sinense.