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Rubber production in Sri Lanka

Rubber production in Sri Lanka 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 Rubber production in Sri Lanka rather than just read about it. In short: Rubber production in Sri Lanka commenced in 1876, with the planting of 1,919 rubber seedlings at the Henarathgoda Botanical Gardens in Gampaha. The total extent under rubber in 1890 was around 50 ha (120 acres) and in the early 1900s it increased to around 10,000 ha (25,000 acres).

Rubber production in Sri Lanka — main illustration
Rubber production in Sri Lanka — illustration

Key takeaways

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

Reference excerpt

Rubber production in Sri Lanka commenced in 1876, with the planting of 1,919 rubber seedlings at the Henarathgoda Botanical Gardens in Gampaha. The total extent under rubber in 1890 was around 50 ha (120 acres) and in the early 1900s it increased to around 10,000 ha (25,000 acres). By 1982 the total extent under rubber was around 180,000 ha (440,000 acres) and the total annual production was 125,000,000 kg (276,000,000 lb). However, the total extent under rubber declined subsequently and at present it is around 120,000 h (430,000 ks)a. Rubber contributes about 0.6% of the total GDP. According to figures published in 2018 by the Rubber Research Institute of Sri Lanka, producing 82,600,000 kg (182,100,000 lb) in 2018.

History On 12 August 1876, the Colonial Office, on the recommendation of Sir Joseph Hooker, sent 38 cases containing 1,919 rubber seedlings from Kew Gardens to Ceylon. The seedlings were germinated from seeds collected by Sir Henry Wickham in Brazil earlier that year. With a further 300 seedlings sent in late 1876/early 1877. Ceylon was selected by the Colonial Office as the most suitable site to cultivate and propagate the rubber plants, for further distribution to other comparable regions in the Indian subcontinent. The seedlings were planted at the Henarathgoda Botanical Gardens in Gampaha, under the guidance of George Thwaites, the Garden's superintendent. In 1877 twenty-two of these young trees were sent to Singapore, and the seedlings from those trees were distributed throughout Malaysia and Borneo. In 1879 twenty-eight plants were sent to India and Burma. The first of the rubber trees in Ceylon flowered in 1881, and the first experiments in tapping subsequently commenced shortly afterwards. In 1893 over 90,000 seeds were supplied to planters throughout Ceylon, in 1900 there was approximately 405 hectares (1,001 acres) of rubber being cultivated and by 1923 there was over 180,085 hectares (445,000 acres).

Current cultivation The traditional rubber growing districts of Sri Lanka are located mainly in the wet zone and include Colombo, Gampaha, Kalutara, Kandy, Matale, Galle, Matara, Kurunegala, Ratnapura and Kegalle. There is currently over 127,500 ha (315,000 acres) of land under rubber cultivation. A significant proportion of the extent under this crop is cultivated by smallholders. There had been a drop in the extent cultivated in these four districts during the last 20 years. The drop is more pronounced in Kalutara and Ratnapura districts where there is a drop by around 29%. In Kegalle district, the corresponding value is 25%. Rubber is also grown in the districts of intermediate zones of the country. The topography of theses rubber lands vary from flat too very steep. At present about 47,000 ha (120,000 acres) 40% of the rubber lands in the country are managed by 19 regional plantation companies, 68,000 ha (170,000 acres) belong to the private sector. Out of the 115,300 ha (285,000 acres), about 25,700 ha (64,000 acres) (22%) are immature and the balance 89,600 ha (221,000 acres) (78%) are mature. The size of rubber holdings vary widely. Those holdings below 8 ha (20 acres) are considered smallholdings. Rubber lands of extent 8 ha (20 acres) or more are considered as estates. In the year 2005, around 77,000 ha (190,000 acres) (65% of the total extend under the rubber) were in the smallholder sector and 37,000 ha (91,000 acres) (35% of the total extend under the rubber) were in the estate sector.

Production of rubber A few decades ago, seedling rubber was planted but at present vegetative propagated rubber accounts to nearly 70% of cultivated rubber. The variety PB 86 predominates but clones of the RRIC 100 series such as RRIC 121 and RRISL 2000 series developed by the Rubber Research Institute are increasingly used in new and replanting. These new varieties are characterised by high yields and a number of other desirable feature.

Rubber exports At present nearly 60% of the rubber produced is used locally and the balance in exported. In 1997, the corresponding value was 42%. Thus, the local consumption of rubber has considerably increased during the last decade. Rubber is exported as smoked sheet, sole crepe, latex crepe and Technically Specified Rubber (TSR). In 2007 18,100,000 kg (39,900,000 lb) sheets were exported. Rubber contributing over US$ 890 million in 2019 to the economy of Sri Lanka. Sri Lanka government aims to growth rubber industry US$ 2 billion by 2025.

See also Agriculture in Sri Lanka Economy of Sri Lanka

References

Illustrations

Rubber production in Sri Lanka: Rubber plantation in Southern Province
Rubber plantation in Southern Province
Rubber production in Sri Lanka: A woman in Sri Lanka harvesting rubber, c. 1920
A woman in Sri Lanka harvesting rubber, c. 1920

Worked examples

Example 1 — a first encounter with Rubber production in Sri Lanka

Start with the simplest possible case. Write down what Rubber production in Sri Lanka 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 Rubber production in Sri Lanka 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 Rubber production in Sri Lanka 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 Rubber production in Sri Lanka

In research
Rubber production in Sri Lanka 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 Rubber production in Sri Lanka 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
Rubber production in Sri Lanka is common in secondary-school and first-year university syllabi. It links to neighbouring topics Agriculture in Sri Lanka, Economy of British Ceylon, Economy of Sri Lanka, so understanding it makes those chapters shorter.
In everyday life
Look for Rubber production in Sri Lanka 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 Rubber production in Sri Lanka in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Rubber production in Sri Lanka means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Rubber production in Sri Lanka out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rubber production in Sri Lanka in simple terms?

Rubber production in Sri Lanka commenced in 1876, with the planting of 1,919 rubber seedlings at the Henarathgoda Botanical Gardens in Gampaha. The total extent under rubber in 1890 was around 50 ha (120 acres) and in the early 1900s it increased to around 10,000 ha (25,000 acres).

Why does Rubber production in Sri Lanka 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 Rubber production in Sri Lanka?

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 Rubber production in Sri Lanka.

Tags

  • Agriculture in Sri Lanka
  • Economy of British Ceylon
  • Economy of Sri Lanka
  • Rubber industry

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