Tag: food production

#CabotNext10 Spotlight on Food Security

Posted on by janet.crompton

 

Dr Taro Takahashi and Dr Vicky Jones

In conversation with Dr Taro Takahashi, Theme Leader, and Dr Vicky Jones, Development Associate at the Cabot Institute

Why did you choose to become a theme leader at Cabot Institute?

T.T: While working for Cabot in my previous role (Director for the Cabot Master’s programme), I saw first-hand the breadth of food-related research across the university. This made me wonder — wouldn’t it be rewarding to work more with these talented colleagues and help develop a research community that can transform the agri-food landscape in Bristol and beyond?

In your opinion, what is one of the biggest global challenges associated with your theme?

V.J: The biggest and very broad challenge is how to feed a growing population sustainably. We know that the food system is a major driver of climate change through changes in land use and production of greenhouse gases – as well as the depletion of freshwater resources and pollution of ecosystems. To meet the targets set in the Paris Agreement it is simply not possible to continue as we are. Yet our population is growing, with some estimates that we will need to produce more food in the next 35 years that we have ever produced in human history.

In addition, environmental degradation such as soil degradation, freshwater availability and biodiversity loss seriously threaten our ability to produce the food we require. And increased levels of CO2 reduce the nutritional content of some food products. Whilst extreme weather conditions, worsened by climate change, such as heatwaves and floods can significantly impact food availability.

And finally, there are extreme inequalities in the food system, both within the UK and globally. One in three people across the world currently suffer from malnutrition of some form whilst more than half the population are either overweight or obese.

T.T: 100% agree with Vicky. We need to identify the best way to make this transition happen while impacting on people’s livelihood and happiness as little as possible.

As we are looking into the future, what longer term projects are there in your theme?

T.T: We would like to make a better use of the University of Bristol campus — a community of 30,000 people — as a testbed for interventions. We cover both the most upstream points (Fenswood and Wyndhurst Farms) and the most downstream points (Source Cafes, Source Bars and residence canteens) of agri-food supply on campus so there are hundreds of strategies we can try to make the system more sustainable. As an additional bonus, quantifying these improvements may also make us prouder to be part of the University of Bristol family, including those who don’t directly work in this area. To realise these goals, we are now trying to work much more closely with the operational departments in the university, and in particular Catering, Sustainability and Estates. And the level of commitment they show to agri-food sustainability has just been amazing.

V.J: Here are long-term activities and projects that might be of interest: Living Laboratory, High Yield Farming, Working for ‘five a day’, and CONNECTED.

Across the portfolio of projects in your theme, what type of institutions are you working with?

T.T: Upstream we mainly work with local farmers, National Farmers’ Union, Defra as well as seed and agrochemical companies. Downstream we primarily work with retailers and consumer groups, both directly and through the Bristol Food Network. In addition, the Bristol City Council is an extremely important partner whose advice on our theme has been invaluable.

What disciplines are currently represented within your theme?

V.J: There are 135 people that are currently members of the Food theme from the following disciplines:

Geography, Civil Engineering, Policy Studies, Chemistry, Sociology, politics and international studies, Earth sciences, History, Biological sciences, English, Vet School, Physics, Management, Psychology, Anthropology, Law… but this number is always growing!

In your opinion, why is it important to highlight interdisciplinary research both in general and here at Bristol?

T.T: In the context of food research, my top answer would be because otherwise ‘solutions’ to agri-food sustainability are often infeasible. For example, I often speak with livestock producers, who as you know are associated with a large amount of greenhouse emissions, and one of the remarks I most frequently hear from them is that they don’t know what to do with the definition of ‘new sustainable diets’ that are reported in the media. I mean, you are a grassland farmer in a high rainfall area who is now told that lentils are better — but it’s not like you can strip off the grass and grow lentils profitably overnight. So any new proposal made downstream must be accompanied by technologies upstream, including both the farm and food processors. Equally, any new proposal made upstream must be accompanied by consumer demand; otherwise, the market price would not support the transition. This cannot be done unless you have an interdisciplinary team that is committed to real-world solutions.

Are there any projects which are currently underway in your theme which are interdisciplinary that you believe should be highlighted in this campaign?

V.J: An interesting project that is currently running is titled “Could disappearing glaciers threaten regional food security?”. This is combining history with glaciology and social science. Another is a partnership with Bristol based start-up LettUs Grow which is focused on vertical farming.

For more information, visit our theme web page – Food Security.

Indian farmers’ strike continues in the shadow of COVID-19

Posted on by janet.crompton

In what is believed to be the biggest protest in history, in late November 2020 farmers from across India drove 200,000 trolleys and tractors towards Delhi’s borders in a mass protest against agricultural reforms. This was followed a few days later by a general strike involving 250 million people in both urban and rural areas of India as workers joined together to support the farmers.

The strike continues, despite the global public health crisis, which is hitting India harder than any other country in the world. Fear of COVID-19 has not deterred farmers, who have emphatically stated that regardless of whether they contract the virus, the “black laws” will kill them anyway.

The movement first began in the state of Punjab in June 2020, as farmers blocked freight railway lines in protest against these “black laws”, which increase corporate control over all aspects of the food chain from seed to sale. Farmers unions argue that the laws undermine state-controlled prices of key crops, by allowing sales outside of state mandis (markets).

The laws also enable corporations to control what contract farmers grow and how, thus reducing the bargaining power of small farmers. Corporations will be allowed to stockpile key produce and hence speculate with food, which was previously illegal. Finally, the laws provide legal immunity to corporations operating in “good faith”, thereby voiding the ability of citizens to hold agribusiness to account.

Braving tear gas and water cannons, thousands of farmers and their families descended on Delhi and transformed its busy roads into bustling camp cities, with communal “langhar” kitchens.

Undeterred by police violence, farmers fed these aggressors who beat them by day with free food by night. This act of community service not only underscored the peaceful intentions of the protests but also encapsulated one of the key ideas of the movement: “no farmers, no food”.

In the same spirit of solidarity, farmers at Delhi’s borders are responding to the rapidly escalating spread of COVID-19 in the city. They are distributing food packages and essential goods to hospitals, as well as in bus and railway stations for those leaving the capital.

Striking farmers have been supplying food to hospitals and other people in need during the COVID-19 emergency in India. Credit: EPA-EFE/STR. Source.

Farmers from numerous states, of all castes and religions, are coexisting and growing the protest movement from the soil upwards – literally, turning trenches into vegetable gardens. Many farmers refer to this movement as “andolan” – a revolution – where alliances are being forged between landless farm labourers and smallholder farmers. In a country deeply divided by caste and – increasingly – religion, this coming together around land, soil and food has powerful potential.

Women have also taken leading roles, as they push for recognition as farmers in their own right. They are exploring the intersections of caste oppression, gendered labour and sexual violence in person and in publications such as Karti Dharti – a women-led magazine sharing stories and voices from the movement.

Violent response

Despite the largely peaceful protests, farmers have been met with state repression and violence. At various points water supplies have been cut to the protest sites and internet services blocked. Undeterred, farmers have prepared the camp sites for the scorching summer heat that now envelops them.

Amnesty international has called on the Indian government to “stop escalating crackdown on protesters, farm leaders and journalists”. Eight media workers have been charged with sedition, while 100 people protesters have disappeared. In response, parliaments around the world have issued statements and debates on the right to peaceful protest in India, as well as a free and open press.

Women have been key players in the Indian farmers’ strike. EPA-EFE/Harish Tyagi. Source.

The heavy-handed government response and intransigence to the key demands of the movement adds grave doubt for farmers who are now being asked to disband protest sites in the interest of public health. It highlights the hypocrisy of being told to go home, while the ruling BJP was holding mass rallies in West Bengal.

The fear is that COVID-19 could derail the momentum of this movement, as with the protests around the Citizen Amendment Act, which were cleared in March 2020 due to enforced lockdown to curb the spread of COVID-19. Farmers repeat that they will leave as soon as the government repeals the laws and protects the minimum support price of key crops.

There has been a groundswell of support from around the globe, from peasant movements, the Indian diaspora community and celebrities – including Rihanna and climate activist Greta Thunberg. This movement is fighting for the principles of democracy on which the Indian state was founded and is part of a civil society movement filling in for the state, which has been found sorely wanting in its response to the calamitous consequences of COVID-19.

The “black laws” are but the latest in a long history of struggle faced by Indian farmers. India’s sprawling fields have been sites of “green revolution” experimentation since the 1960s. This has worsened water scarcity, reduced crop genetic diversity, damaged biodiversity, eroded and depleted soils, all of which has reduced soil fertility.

The financial burden of costly inputs and failing crops has fallen on farmers, leading to spiralling debts and farmer suicides. The impacts of climate change and ecologically destructive farming are primary reasons for this financial duress. However, the movement has yet to deeply address the challenges of transitioning towards socioeconomically just, climate-friendly agriculture.

Peasant movements around the world highlight the importance of collective spaces and knowledge-sharing between small farmers. The campsites in Delhi provide a unique opportunity to link socioeconomic farming struggles to their deep ecological roots. These are indeed difficult discussions, but the kisaan (farmer) movement has provided spaces to challenge caste, religious and gender-based oppression.

The movement’s strength is its broad alliances and solidarity, but it remains unclear whether it will link palpable socioeconomic injustices to environmental injustices and rights. The ecological origins of COVID-19 make these connections ever more pressing the world over.The Conversation

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This article is republished from The Conversation under a Creative Commons license. Read the original article.

This blog is written by Cabot Institute member Dr Jaskiran Kaur Chohan, at the University of Bristol Vet School. Jaskiran is a political ecologist with an interdisciplinary background in the Social Sciences.

Dr Jaskiran Kaur Chohan

 

Breeding cassava for the next generation

Posted on by janet.crompton

Last week I helped to harvest and score cassava tubers a breeding trial at the National Crops Resources Research Institute (NaCRRI). The trial is part of the NEXTGEN Cassava project which applies genetic techniques to conventional breeding and aims to produce new varieties with Cassava brown streak disease (CBSD) and Cassava mosaic disease (CMD) resistance.

Why cassava and what’s the CBSD problem?

Approximately 300 million people rely on cassava as a staple food crop in Africa. It is resilient to seasonal drought, can be grown on poor soils and harvested when needed. However cassava production is seriously threatened by CBSD, which can reduce the quality of tubers by 100% and is currently threatening the food security of millions of people.

Cassava brown streak symptoms on tubers

Crossing cassava from around the world

Cassava varieties show a huge variation in traits including disease resistance. The NEXTGEN Cassava project has crossed 100 parent plants from Latin America with high quality African plants to produce new improved varieties, with higher levels of CBSD and CMD resistance. Crossing involves rubbing the pollen from one parent variety on to the female flower part (pistil) of the second parent variety to produce seeds.

Cassava flowers used to cross different varieties

 

Cutting back on time

The process is not easy. The complex heritability of traits in cassava means that many plants have to be screened to identify plants with the best traits. To cut down on this time, researchers from Cornell University sequenced the DNA from 2,100 seedlings and selected plants containing sequences linked to desirable traits.

Screening for resistance

These plants were transferred to field site in Namulonge, where there is a high level of CBSD, making it easier to spot resistant plants. After 12 months the tubers were dug up and cut into sections. Each root was scored for the severity of CBSD. Plants which  show no disease symptoms have now been selected for the next stage of breeding. Eventually varieties will be tested for their performance at sites across Uganda and given to farmers for their feedback.

We harvested and scored tubers for Cassava brown streak symptoms. I then tagged disease free plants for selection!

 

Time to harvest!

 

Alfred Ozimati is managing the breeding  programme

I helped to score and tag plants, it was hard work! I was impressed by the stamina of the workers who harvested from 8 am until 3 pm without a rest. I was struck by the mammoth task of breeding cassava for so many traits and by the programme manager Alfred Ozimati’s determination to get the work done as quickly as possible. Alfred is currently a  PhD student at Cornell University; he kindly offered to answer these questions:

What are the challenges of conventional breeding and how does sequencing help to address these?

Typical conventional breeding cycle of cassava is 8-10 years before parents are selected for crossing. The sequencing information allows a breeder to select parents early at the seedling stage, allowing more crossing cycles over time than conventional cassava breeding. With sequencing, the process of releasing varieties with improved CBSD and CMD resistance should take about 5 years.

What are your long term hopes for the project and the future of cassava breeding?

We hope to use genomic selection routinely, to address any other challenges cassava as a crop of second importance to Uganda will face. And also to take the technology to other East African, cassava breeding programs to faster address their major breeding constraints.

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This blog has been written by University of Bristol Cabot Institute member Katie Tomlinson from the School of Biological Sciences.  Katie’s area of research is to generate and exploit an improved understanding of cassava brown streak disease (CBSD) to ensure sustainable cassava production in Africa.  This blog has been reposted with kind permission from Katie’s blog Cassava Virus.

 

Katie Tomlinson

More from this blog series:  

A new green revolution for agri-tech?

Posted on by janet.crompton
Prof Sir John Beddington,
Cabot Institute External Advisory Board Chair

“A world food crisis can be expected in the coming decades as our demand for food outstrips our ability to produce it.”  This was the ominous forecast in 2008 by Sir John Beddington, then chief science adviser to the UK government, and now Chair of the Cabot Institute External Advisory Board. In a bid to avoid such a catastrophe, the UK Government has introduced its new Agricultural Technologies Strategy, which it hopes will put Great Britain at the centre of a new ‘green revolution’. Recent advances in technology such as the growing field of genomics present scientists with novel opportunities for innovation in crops and farming. Cabot Institute member, Prof. Keith Edwards at the University of Bristol researches how the genomes of different kinds of wheat diverge in the hope of finding out what makes some more productive than others. These new scientific developments and emerging challenges like climate change present opportunities for innovation in agriculture. As growing conditions across the world begin to change, previously elite varieties of crops may no longer be suitable for the areas where they have historically been grown.

Although UK agricultural scientists are at the forefront of some of the most important advances in understanding this doesn’t necessarily lead to practical advances in the field. Gaps in worker skills and understanding may be preventing farming progress and reducing associated benefits for society. The UK Agri-Tech Strategy hopes to address this by putting a greater emphasis on the role of scientific research in providing enough nutritious food for everybody. At the same time scientists hope to minimise the detrimental effects of agriculture on natural resources and biodiversity. Bristol academic Prof. Jane Memmott studies the effects of conventional and organic farming on other species in the area like the local insects.

The Agri-Tech industry is currently worth just under £100 billion to the UK economy. Last year, we exported £18 billion of food, animal feed and drink, including £3.7 billion of fresh produce and 15 million tonnes of wheat, making us one of the top 12 food and drink exporters in the world. This came with a price tag of around £450 million spent by the government on research and development in agriculture last year. In addition at least a further £100 million was spent by private companies like Syngenta, who opened a state of the art wheat-breeding facility in January of this year.  The government hopes to see the UK become a world leader not just in food production but in agricultural technology, innovation and sustainability.

The new Agri-Tech strategy aims to vitalise the farming industry with a cash injection of £160 million. This money will go towards improving the application of research into real gains in farming, and at enhancing the declining infrastructure that supports the livestock industry. For instance, the number of dairy farms in the UK has halved over the last decade. The research funding pot includes £70 million to establish a partnership between the Technology Strategy Board and the Biotechnology and Biological Sciences Research Council. The new Agri-Tech Catalyst organisation will be aimed at translating research into best practice by supporting firms bringing their new technology to market. This builds on the €2.8 billion commitment made by the European Commission in 2011 to establish a Knowledge Innovation Community (KIC) to drive innovation of technology in agriculture and food processing.

The other main investment is £90 million over the next five years that has been ear-marked as funding for several regional Centres for Agricultural Innovation, aimed at bringing cutting edge science like better pesticides and climate adapted crops into the fields.  It is hoped that these Centres will lead research into the development and exploitation of new technology and processes, focussing research on sustainable intensification. They will also contribute to educating and training a skilled workforce to bring the results of research into the field.

Not everybody’s reaction to the new plans has been completely positive. Tom MacMillan of the (organic food and farming) Soil Association http://www.soilassociation.org/news/newsstory/articleid/5647/press-comment-governments-new-agri-tech-strategy worried that investment would concentrate on unpopular technologies such as GM farming. Other areas of research such as agroecology (the ecological study of food systems) that do not lead to technology that can be commercialised may lose out on funding.  However many groups such as the  British Growers Association, the Society of Biology and the UK Plant Sciences Federation have come out in whole-hearted support of the new plans.

This blog has been written by Boo Lewis, Biological Sciences, University of Bristol.

Boo Lewis, Cabot Institute blogger
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