FAO-IGG Inter-sessional Meeting

The FAO-IGG inter-sessional meeting was held during August 12-13, 2017 at the Cinnamon Grand Colombo Hotel with the participation of a large number of foreign delegates representing tea growing and consuming countries.

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TRI Participates at the CRT Trade Fair & Exhibition

The CRT exhibition was held at the BMICH during August 11-13, 2017...

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Celebrate 150 years of Ceylon Tea – Tea Party

World’s ever longest Tea Party organized by Sri Lanka held on 06 July 2017. While many countries from east to west across the world celebrated at 5.00 pm Sri Lanka time in every time zone and the local event was at Galle Face Hotel, Colombo. This celebration was organized b...

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National Environmental Week - 2017

Inauguration Ceremony of National


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Visit of Honorable Vice Minister of Agriculture of China

Honorable Vice Minister of Agriculture of China Tea Research Institute of Sri Lanka on 04 May 2017....

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TRI participates in the national exhibition at the BMICH

The Tea Research Institute participated in the national exhibition........

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Visit of His Excellency President Maithripala Sirisena

His Excellency President Maithripala

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Year 2017: the year of adoption of integrated measures ..........


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First working day celebration of year 2017


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High quality St. Coombs tea

It is time to order the best tea you have ever tasted.
High grown factory fresh unblended St. Coombs tea is available at the St. Coombs Tea Centre....

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St Coombs achieved all time record price

St Coombs achieved all time record price...........

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Climate Change

Report on climate changevulnerability and adaptation strategies for
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Tea Research outshines at the Sixth Symposium on Plantation Crop Research

The sixth Symposium on Plantation Crop Research was successfully held at the BMICH during November 3-4, 2016. The theme of the symposium was “Plantation Agriculture t...

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Report on climate change vulnerability and adaptation strategies for tea plantations released

A comprehensive report on the impacts of climate change, vulnerability and adaptation strategies for the tea sector in Sri Lanka .....

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Low Country Regional Centre & St. Joachim Tea Factory Celebrated 50 years of Services

The TRI Low country Regional Centre and St. Joachim factory celebrated their Golden Jubilee in 2014. Commemorating the Golden Jubilee, a series of events viz. an “Open Day” for stakeholders, felicitation of retired officers with long years of service and religious ...

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National project launched for popularizing the use of machines in tea smallholdings sector

Launching the national project for popularizing the use of machineries in tea smallholdings, the Minister of Plantation Industries, Hon. Mahinda Samarasinghe handed over 21 million Rupees worth of machines and equipment to 50 societies of tea smallholders and 25 bought leaf t...

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Corporate Plan 2013-17

The third revision of the Corporate Plan of the TRISL is now prepared. It embodies the vision of the management, a commitment of its senior managers by way of its mission and of all those involved in making realistic goals and objectives....

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Plant Physiology Division focuses on the understanding of the physiology i.e. functioning of tea plant. The main areas of physiological research are under crop improvement, land productivity improvement, impact of climate change and crop management. Under these thematic areas a number of researches under go on drought screening, shade, root physiology, climate change, carbon sequestration and carbon budgeting.

Thematic areas

Crop Improvement

  • Screening of 5000 series tea cultivars for drought being conducted under low country wet zone, mid country wet zone and uva region using selected physiological and biochemical parameters.
  • Investigations on the behavior of tea root system is done to

Improvement of Land Productivity

  • Physiological performances of tea under newly identified high and medium shade tree species are measured to evaluate the suitability of these new species as shade for tea.

Climate Change Impact assessment

  • The current study assess the responses of tea plants to expected future climate change, the carbon sequestration potential of tea and the availability of different payment systems for the environmental services.

Carbon budgeting for different tea growing regions

  • Carbon budgets for the tea plantations in different tea growing regions are being prepared at soil series level.

 Click here to view Staff Details >>

Major Achievements

  • A simple technique was developed for testing root starch content prior to pruning.
  • Spraying of K2SO4 at a concentration of 2 % together with urea at 4 %, just prior to a drought was found to help tea plants withstand drought conditions.
  • Development of alternate shade tree data base.
  • Discovery of allelopathy in tea lands.
  • Discovery of the reason behind yield decline at the later stages of the pruning cycle.
  • A Drought Susceptibility Index was developed to screen the new cultivars for drought.
  • A simulation model was developed to predict the tea yields and carbon sequestration potential variations with expected future climate change.
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