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Passionately Fruity

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Filled with crunchy seeds, passion fruit, locally known as wel dodam is a year-round fruit, rich in nutritional properties. With renewed interest among cultivators for its expansion, a strong value-chain is the need of the hour to maximize its consumption and the export potential.

BY RANDIMA ATTYGALLE

Named for the features of its flowers which resemble different symbols of Christ’s crucifixion such as the crown of thorns, passion fruit, also called granadilla, is native to Brazil. The Inca people are known to have cultivated passion fruit plants in the Peruvian region around AD 1000, and the mashed fruit combined with water has been consumed in Peru, as a nutritious drink for many centuries. Today the fruit is also grown in Australia, Hawai, Venezuela, Thailand, New Zealand, South Africa and Columbia. Passion fruit is locally known as wel dodam, the name deriving from the vines (wel) of the plant. Although the exact origin of this year-round crop in Sri Lanka is vague, it is believed to have been introduced to the island during the Portuguese occupation. Passion fruit leaves are a popular base for Sri Lankan mellum.

Yellow passion fruit

The genus Passiflora includes more than 350 species of sub-tropical vines, but few of them are grown for their fruits. There are two forms of passion fruit commercially grown for their fruits; the purple-skinned Passiflora edulis f. edulis Sims and yellow-skinned Passiflora edulis f. flavicarpa Deg. “Although the purple variety is sweeter and superior in taste, compared to the yellow, what is more in demand for commercial purposes and for value-added products such as cordials, jams and desserts is the yellow passion fruit which is considered to be either a mutant of the purple fruit or a cross-bred one with another variety,” says the Principal Agriculture Scientist (Plant Breeding) of the Fruit Crops Research and Development Institute (FRDI), Indrani Kalubowila.

Given its availability round the year and the demand for it in the export market, the yellow passion fruit is a popular crop among cultivators today, points out Kalubowila. “While the purple variety is largely confined to the upcountry intermediate zone in the island, yellow fruit has now expanded beyond this zone to other areas in the country such as Dambulla, Kurunegala, Matale, Kandy Embilipitiya, Hambanhota and Kilinochchi. A yellow passion fruit weighs around 135gms as the fruit is larger than the purple type which weighs around 100gms a fruit. Its dark yellow juice, pleasant aroma and rich flavor make it ideal for industrial purposes.”

Commercial cultivation

Although passion fruit was grown in many home gardens, commercial cultivation of passion fruit began here at home in early 1970s in the Kalutara and Galle areas. As documented in the paper, ‘Passion fruit industry in Sri Lanka- A Report on Past and Current Status,’ by Rohana Wijesekera (1992), ‘youth farm colonies were used for this and they were provided with subsidies for cultivation. Their harvest was taken by the Marketing Department (MD) mainly for export purposes.’ Due to the increase in supply to the world market by other competitors, Sri Lankan passion fruit lost its export market and the farmers were paid very low prices. ‘In some cases, collectors refused to buy the passion fruit and the farmers faced problems in marketing. Some farmers used their land for other perennial crops such as tea, rubber and cinnamon which gave a steady income,’ documents Wijesekera.

New trellising system

Horana Gold

Following the release of Horana Gold variety in 2017 by the FRDI, the demand for the yellow passion fruit was once again renewed among local cultivators. However, its export potential is still not fully tapped, points out Kalubowila who was among the scientists responsible for the research and release on this high-yielding yellow passion fruit variety. “Horana Gold is an improved variety, developed by crossing multiple parental lines; what is known to be a ‘composite variety’. Therefore, it yields a very good harvest and today there is a great demand among entrepreneurs for this.”

Best practices for a bumper harvest

Today around 600 hectares of yellow passion fruit is grown in the country, says Kalubowila. “Although 50 tons of fruit can be generated per hectare, only about 20 tons are generated due to bad agricultural practices,” points out the scientist. The fruit thrives in a temperature of 20-30C and fertile soil with higher Ph levels. “The best yield of yellow passion fruit comes from areas such as Bandarawela, Welimada and Badulla as these upcountry intermediate dry zones meet the ideal climatic requirements despite the vines reaching the reproductive stage somewhat later compared to those in wet and humid zones.”

Although passion fruit can be grown as an inter-crop, for an optimum harvest, it is promoted as a monocrop. “Full sunlight is critical for flowering and when it’s a monocrop this advantage is at its fullest,” explains Kalubowila who goes onto note that the ideal planting season is between September and October when there is ample rain. “However, farmers should assure that the soil doesn’t get water-logged and that there are proper drainage systems; if not the vines will be rotten. By March, the flowering season begins and within a short time, a bumper harvest can be fetched, provided that the farmers follow good agricultural practices which are offered by the FRDI. Farmers can get quality passion fruit seeds from the seed centres of our regional offices.”

Variety improvement

FRDI is currently engaged in research for the improvement of passion fruit varieties and the development of technology packages for passion fruit cultivation. “Areas such as Moneragala, where there is sufficient land for cultivation yet stress-induced, in terms of climate and crop disease, requires improved varieties of passion fruit which are resistant to these stresses. We are presently researching into such varieties. Moreover, we are also in the process of improving the purple variety- to make the fruit larger.”

The T-trellis systems which is now promoted for passion fruit cultivation has largely replaced the single trellis system used for the vines to climb. Kalubowila says that this new T-trellis method with three wires has increased the productivity by 50% more. Passion fruit is also a lucrative crop which can fetch about Rs. 450 per kilo today. “Although there is great enthusiasm for the cultivation of this fruit which is rich in its nutritional value, there is still not sufficient dialogue created around it to create a strong value chain for it,” observes Kalubowila who also calls for a better national plan to expand its export market and to promote its local consumption. Today local passion fruit is largely exported to Middle Eastern countries. “Passion fruit is a rich source of vitamins A and C, and studies have shown that it can kill cancer cells in vitro. In certain countries, cancer patients are given a glass of passion fruit juice as a dietary supplement” notes the scientist.

Artificial pollination

Although passion fruit is naturally pollinated by carpenter bees (Xylocopa pubescens), fruit set (transition from flower to young fruit), fruit filling, fruit weight, and overall yield can be significantly improved through artificial pollination. This pollination technology has been effectively developed by the FRDI. “Seeds for cultivating the ‘Horana Gold’ variety are produced by the Department of Agriculture. Typically, 15–20 grams of seeds are sufficient to produce plants for one acre. However, farmers occasionally report issues with low seed germination rates. To address this, FRDI has developed a simple and effective technology to enhance seed germination rates,” concludes Kalubowila.

(Pic credit: Fruit Crops Research and Development Institute)



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Nanda Malini Ascocenda: A flower that carries the name of a legendary voice

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By Ifham Nizam

A flower named after one of Sri Lanka’s most celebrated voices has become a unique tribute to the country’s cultural heritage, with the Nanda Malini Ascocenda orchid carrying the name of veteran singer Dr. Nanda Malini.

The orchid was named in honour of Nanda Malini, recognising her outstanding contribution to Sri Lankan music and culture. She is among the country’s most acclaimed singers, with a career spanning several decades and a repertoire deeply rooted in Sri Lankan social and cultural experiences.

The striking illustration, released by the Ministry of Environment on August 21, features the veteran singer surrounded by colourful orchids and musical notes, bringing together two important elements of Sri Lankan identity — the country’s rich natural heritage and its musical tradition.

The Nanda Malini Ascocenda is particularly significant because it represents an unusual meeting point between art and nature. Orchids have long been associated with Sri Lanka’s botanical wealth, while the naming of individual hybrids after distinguished personalities provides a lasting link between the country’s natural and cultural heritage.

According to published accounts, the Nanda Malini Ascocenda was named in 2004 in recognition of the singer.

A recent profile described her as possibly the only Sri Lankan artiste to have an orchid named after her by the Orchid Circle of Sri Lanka.

Nanda Malini’s contribution to music has been recognised through numerous awards. She has also performed internationally and remains one of the most recognised figures in Sri Lankan music.

Her association with songs reflecting social realities, human emotions and national identity has given her a special place in the country’s cultural landscape.

The orchid, therefore, represents more than a botanical curiosity. It is a living tribute to an artiste whose voice has accompanied generations of Sri Lankans.

The Ministry of Environment’s presentation also serves as a reminder that conservation is not limited to forests, wildlife and ecosystems. Sri Lanka’s natural heritage is closely intertwined with its history, culture, art and the people who have enriched the nation’s identity.

As the colourful blooms of the Nanda Malini Ascocenda evoke the beauty of Sri Lanka’s orchid heritage, the name attached to them ensures that the contribution of one of the country’s most distinguished musical voices continues to live on in an entirely different form — through nature itself.

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The Best of Malkoha celebrates half a century of Sri Lankan ornithological writings

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Distinguished gathering

By Ifham Nizam

The launch of The Best of Malkoha: Half a Century of Ornithological Writings marked a significant milestone in Sri Lanka’s birdwatching and conservation history, as the Field Ornithology Group of Sri Lanka (FOGSL) celebrated its Golden Jubilee at the Faculty of Science, University of Colombo.

The book, drawn from five decades of writings published in Malkoha, the FOGSL newsletter, brings together a rich record of observations, discoveries and experiences that helped shape modern field ornithology in Sri Lanka.

The launch formed part of FOGSL’s first-ever Founders’ Day, held on August 22, a date chosen to coincide with the 76th birthday of Vidyajothi Emeritus Professor Sarath Kotagama, one of the Organisation’s founding figures and its enduring source of inspiration.

The occasion brought together academics, conservationists, naturalists, birdwatchers, students, young birders and members of FOGSL, reflecting the broad community that the organisation has cultivated since its establishment in 1976.

Section of the invitees

Biodiversity expert Dr. Rohan Pethiyagoda, delivering the Golden Jubilee Founders’ Day Oration, used the occasion to reflect on five decades of biodiversity research and conservation in Sri Lanka, while paying tribute to Professor Kotagama and the role played by FOGSL in taking birdwatching beyond a small circle of specialists.

Pethiyagoda said the organisation’s greatest achievement had been its ability to make knowledge of birds and nature accessible to ordinary people.

He recalled how, in the early 1990s, Professor Kotagama had proposed producing an affordable field guide so that birdwatching would no longer be restricted by the high cost of existing publications.

That resulted in the publication of A Field Guide to the Birds of Sri Lanka in 1994, which Pethiyagoda published and which subsequently became a bestseller.

The collaboration later produced Sri Lanka Kurulu in Sinhala, making serious bird identification and knowledge available to an even wider audience.

Pethiyagoda recalled a particularly emotional encounter that demonstrated the lasting impact of that work.

During a recent visit to Talangama to accompany Australian birdwatchers, he encountered two boys, aged around 12 and 14, carrying a battered copy of Sri Lanka Kurulu and using it to identify birds.

“I just started crying,” Pethiyagoda said, describing the moment as evidence of how knowledge had been passed from one generation to another.

He said the achievements of the past 50 years should not be underestimated. Sri Lanka has witnessed major advances in health, education, infrastructure and conservation, while the country’s protected-area network has expanded considerably.

At the same time, however, he warned that biodiversity research and conservation continue to face serious institutional challenges.

Pethiyagoda pointed to habitat fragmentation, climate change, inadequate scientific research and restrictions on field research as major challenges facing the next generation of conservationists.

He said climate change would increasingly force species to move towards cooler, higher elevations, but fragmented habitats could prevent them from making such movements.

“Our challenge now is to connect up those little fragments so that plants and animals can migrate across these landscapes,” he said, stressing the importance of restoring ecological connectivity.

He also called for greater investment in ex-situ conservation for species facing extinction and urged the establishment of conservation facilities across Sri Lanka’s different climatic zones.

Pethiyagoda placed particular emphasis on citizen science, arguing that Sri Lanka possessed an enormous reservoir of public enthusiasm for biodiversity.

He noted that more than 20,000 Sri Lankans were now involved in citizen science through platforms such as iNaturalist, with Sri Lankan users generating significant biodiversity data.

“The appetite for science, the appetite for conservation, for exploration, for discovery is there in the people,” he said.

Pethiyagoda also paid an emotional tribute to Professor Kotagama, describing him as the constant force behind much of Sri Lanka’s modern conservation movement.

“In future generations, we will talk of conservation in this country as before Kotagama and after Kotagama,” he said.

He also acknowledged Professor Kotagama’s wife, Namali, for being the “bedrock” of his household and for supporting his decades-long contribution to conservation.

The Golden Jubilee celebrations also looked back at the origins of FOGSL.

The Organisation was founded on October 10, 1976, when four passionate bird enthusiasts—the late P. B. Karunaratne, Professor S.U.K. Ekaratne, Professor Sarath Kotagama and Rex I De Silva —came together with a shared objective of making birdwatching accessible beyond the relatively exclusive group that had traditionally dominated the field.

FOGSL was subsequently formally recognised by the University of Colombo and developed as a platform bringing together birdwatchers, researchers, students, educators and nature enthusiasts.

Its philosophy was simple: one did not need an academic qualification to become a member. Enthusiasm, careful observation, recording and sharing knowledge were enough.

That principle continues to define the Organisation.

FOGSL has since become Sri Lanka’s BirdLife International partner and has played an important role in bird research, conservation, environmental education, field studies, school programmes and citizen science.

Its work has extended from research on endemic birds and migratory species to biodiversity monitoring, conservation education and programmes aimed at children and young people.

Speaking at the event, FOGSL President Professor Nihal Dayawansa said the organisation’s founding vision remained relevant even after half a century.

The Organisation, he noted, was created not simply as a birdwatching club but as a platform through which people could study and conserve Sri Lanka’s birds while inspiring the wider public to appreciate nature.

The Founders’ Day itself was described as an opportunity to honour those who established and shaped the Organisation while celebrating the contribution of generations of members.

Professor Mayuri Wijeyasinghe, Head of the Department of Zoology and Environmental Sciences, said FOGSL had given ornithology a new meaning in Sri Lanka by taking birdwatching beyond an elite community and making it accessible to ordinary people and schoolchildren.

She noted that Sri Lanka, as a tropical island with a remarkable diversity of birds and a high level of endemism, had a special responsibility to understand and conserve its avifauna.

The Dean of the Faculty of Science, Professor I.M.K. Fernando, meanwhile, said that although his own field was physics, he recognised the common foundation shared by all branches of science—curiosity.

He congratulated FOGSL on reaching 50 years and praised its contribution to research, education, student development, wetland conservation, public awareness and science-based advice on development projects.

“The work goes far beyond publishing,” he said, noting the Organisation’s lectures, school programmes, research projects and conservation initiatives.

He also paid tribute to Professor Kotagama, describing him as a legend whose influence had extended well beyond ornithology.

Professor Kotagama, speaking after receiving tributes from colleagues and friends, said the Organisation’s foundations had been laid with a belief that people could make a difference.

He stressed the importance of taking decisions based on scientific knowledge and criticised excessive bureaucratic barriers that, in his view, prevented scientists from carrying out important field research.

Reflecting on his own period as Director of Wildlife Conservation, he said he had sought to transform the Department into a scientific institution.

“For me and for us who were working in the Mahaweli environment programme at that time, we knew that if not for science, you cannot go forward in conservation,”

Professor Kotagama said, stressing that conservation required both natural and social sciences.

He recalled the challenges faced by the Department, including inadequate staffing structures and poor career progression for wildlife officers, and said efforts had been made to introduce a more professional and scientifically grounded system.

The 50-year journey of FOGSL is closely intertwined with the development of modern field ornithology in Sri Lanka.

From the early days when birdwatching was largely confined to a small group of specialists, the Organisation helped create a culture in which students, schoolchildren, amateur birdwatchers and citizen scientists could contribute to the understanding of the country’s biodiversity.

The launch of The Best of Malkoha, therefore, served as more than the unveiling of another publication. It was a record of that transformation.

The writings collected in the volume represent five decades of observations and experiences, documenting how Sri Lankan field ornithology evolved through the work of generations of birdwatchers, researchers and conservationists.

As theOorganisation enters its next half century, the message emerging from the Golden Jubilee celebrations was clear: the future of conservation will depend not only on institutions and scientists but also on an informed and empowered public.

FOGSL’s enduring motto—”Once a member, always a member”—perhaps best captures that legacy: a lifelong connection with birds, nature, scientific observation and the responsibility to protect Sri Lanka’s extraordinary natural heritage.

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Heart that beats for humanity

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Dr Rajitha Y de Silva: Healing hearts, saving lives

Dr. Rajitha de Silva

By Zanita Careem

Dr. Rajitha Y. de Silva, Consultant Cardiothoracic Surgeon and Consultant at Sri Jayewardenepura General Hospital, has built a distinguished career around one of medicine’s most demanding discipline – surgery of the heart. With his expertise, precision and pioneering spirit, he has become closely associated with the advancement of Minimally Invasive Cardiac surgery in Sri Lanka. He joined Sri Jayewardenpura General Hospital in 2013 and is today recognised as a pioneer of Minimally Invasive Cardiacs procedures in the country.

He is particulary recognised as a pioneer of mimimallyinvasive surgery in Sri lanka,with experience in procedures including minimally invasive coronary surgery and mitral valve repair. He is recognition as a leading figure in the advancement of modern cardiac surgery in the country. With years of specialised training and experience behind him, Dr de Silva has built a reputation in cardiothoracic surgery while remaining deeply conscious of the human story behind every patient who enters the operating theatre. For him, the beating heart is more than an organ to be repaired – it represents a life, a family, a future and a second chance.

His commitment to patients extends well beyond the operating theatre. Having witnessed the financial hardships faced by heart patients who desperately needed surgery but could not afford it. Dr de Silva, together with Senior Cardiologist Dr. Ruwan Ekanayake, co-founded the Heart to Heart Trust Fund.

The initiative was created with a powerful objective, that no patient should be denied life saving cardiac treatment simply because of financial difficulties.

Perhaps one of the most striking aspects of Dr de Silva’s personality is that his concern for patients does not end when the operation is over. His vision has included creating initiatives that make the difficult journey of cardiac patients more humane, giving them encouragement, dignity and hope during a period when they are often at their most vulnerable. Abayadhana was born from a simple but powerful conviction that every patient deserves a chance to live.

Through the Abayadhana programme, he represents his compassionate approach to caring for people who need not only medical attention, but also understanding, encouragement and support. What makes this initiative particularity meaningful is the personal commitment behind it. It reflects his belief that healing is not only about medicine, but about reaching out to people when they are most vulnerable.

Away from the intensity of the operating theatre, Dr. Rajitha de Silva finds another kind of joy – his passion for cricket over the years; he has taken the field in numerous matches, playing alongside and against many well known personalties.

Dr. Rajitha de Silva’s journey is guided by compassion and success anchored in humanity. From pioneering milestones in cardiac surgery to the Heart to Heart Trust Fund and the Abayadhana initiative, he has continued to give back to the people whose lives he touches. His love for cricket, his warmth and generosity reveal the heart behind the healing hands.

A surgeon by profession, a humanitarian by choice and a cricketer by heart, Dr. Rajitha’s greatest legacy may not be measured only by the operations he has performed, but by the lives he has changed, the hope he has restored and the hearts he has touched.

The trustees of the Heart to Heart Trust Fund stand united behind the mission of saving lives and giving hope. Their collective commitment helps turn the Trust’s vision into meaningful support for patients and families in need

The Executive Director, Heart to Heart Trust Fund, Shanti Fernando, plays a hands on role in turning the Trust’s vision into action, coordinating efforts, and bringing hope where it is needed.

Behind Dr. Rajitha de Silva’s demanding life is his wife, Dr. Arunie, and children, who has been his strength and support.

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