- Role of indigenous foods in addressing malnutrition and diet-related diseases in Africa: a systematic review. Traditional foods contribute to dietary diversity, micronutrient intake and food security. Nutrition policy should pay more attention to what people used to eat.
- Regenerative agriculture for dietary diversity and food security in Zambia. Soil-focused regenerative practices are associated with more diverse diets, through a mixture of production, income and market effects. Soil health has a dietary dimension.
- The Relationship among Food Environment Types, Diet, and Nutrition Outcomes in Women, Children, and Adolescents from Low- and Lower-Middle Income Countries. What surrounds people matters as much as what they grow: food environments influence dietary diversity and nutrition in complicated ways, but access to wild foods is usually a good thing.
- Allele-specific expression reveals complex regulatory divergence underlying fruit phenotypic differences between cultivated and wild tomato species. Wild tomato relatives harbour genetic variation for sugars, volatiles and other flavour traits that domestication left behind. A reminder that “improvement” can be a process of subtraction. Not nutrition you say? I bet flavour is connected with nutrition — in complicated ways.
- Large-scale phenotyping and multi-trait selection identify low-methane Napier grass accessions under contrasting environmental conditions. Napier grass accessions differ substantially in methane yield, digestibility and other traits. Feed diversity could help reduce livestock emissions without sacrificing everything else. Cows need better nutrition too.
Nibbles: Historical photos, Belgian pears, Miombo fruits, Kenya seed treble, Nepal landraces, Women
- Haga Hideo’s 1950s photos of Fukushima farming rituals are now being used to revive them: ex situ conservation, but for culture.
- Long before photography, or “pre‑breeding” was a buzzword, Belgian pomologist Jean‑Baptiste Van Mons was running massive pear selection trials and gifting us Beurré Bosc and Doyenné Boussock.
- As Southern Africa’s miombo woodlands shrinks, scientists are cloning wild trees so the fruit — and food security — outlive the forest. Now for the pre-breeding.
- Greenpeace Africa’s Seed Project makes the case for indigenous seeds as a route to farmer independence. And you can help.
- And oh so coincidentally, a network of community seed banks in Kenya is rescuing indigenous seeds so the diversity is still around when opportunity (or crisis) knocks.
- Also in Kenya, the national genebank’s collectors are racing to secure opportunity crops.
- Nepal’s indigenous crops and landraces are at the same time more needed than ever, and under threat. So, much like in Kenya.
- The Alliance of Bioversity and CIAT says women are at the center of sustainable food systems; the fine print adds: “as they have always been.”
Nibbles: China genebank, China blueberries, PhilRice, Italy olive genebank, GIAHS, Mangelwurzel, Papaw, Bean AI
- China is building its germplasm collection at the National Frigid Zone Crop and Soybean Germplasm Resources Mid-term Bank in Harbin. Cool.
- Driscoll’s helped build China’s blueberry industry, then discovered that knowledge, infrastructure and genetics have a habit of escaping. Not so cool.
- Meanwhile, the Philippines wants its rice collection to hit 21,000 varieties by the end of the year. IRRI unavailable for comment.
- Italy is establishing a major global olive genebank. Unclear where it fits in with other major global olive genebanks, but some redundancy is good.
- FAO showcases Globally Important Agricultural Heritage Systems, where crops, landscapes and traditional knowledge have survived together. Like olives in Italy, I guess.
- The mangelwurzel is making a comeback, because apparently forgotten root vegetables just need better publicity, and not a fancy GIAHS.
- Ohio growers are trying to save the pawpaw just as Americans are discovering it, partly because of better publicity.
- BeanGPT is bringing AI to breeding and farming beans. Maybe it can help the mangelwurzel and pawpaw too?
Where have all the nutrients gone?
The “nutrient collapse” story has been doing the rounds for years, and we’ve been picking at it on the blog for almost as long.
Back in 2009, Jeremy looked at evidence that older crop varieties could contain more minerals, protein and other nutrients than newer ones, and discussed various possible reasons, including the intriguing possibility of a “genetic dilution” effect as breeders selected for yield.
By 2012, we were stressing that the evidence was more complicated than the headlines suggested, and in 2019 we linked to the latest critical review of the evidence by Robin Marles of the Bureau of Nutritional Sciences in Canada.
Now the latest episode of the BBC’s indispensable More or Less podcast asks again whether carrots are becoming less nutritious, prompted by a listener who clearly hasn’t been following our blog, and turns to Dr Marles, now retired, for the answer. Which hasn’t really changed much.
The bottom line is that breeding for yield and other commercially important traits can change the balance of what ends up in the harvest, and that we have historically been much better at measuring tonnes per hectare than what is actually in those tonnes.
Brainfood: From data to action
- A three-decade-long analysis shows rising threatened species and responsibility gaps in global supply chains. Data says that we must make responsibility for biodiversity traceable from production to final demand.
- Development of an evidence-based integrated germplasm prioritization framework for conservation and breeding. Data says: here’s how to extract some defensible conservation and breeding priorities from this large collection.
- A methodological framework for the standardised evaluation of olive genetic resources: GEN4OLIVE harmonized protocols. Data says that we should standardise phenotyping across countries to make olive germplasm more useful in breeding.
- High-throughput phenotyping of Bambara groundnut [Vigna subterranea (L.) Verdc.] seed morphometrics using videometer. Data says that we should use multispectral imaging to really speed up seed characterization and breeding in Bambara groundnut.
- Predicting the cross-continental spread of the cassava brown streak disease epidemic in sub-Saharan Africa. Data says that we must strengthen surveillance and delivery systems for clean planting material before cassava brown streak disease reaches Nigeria.
- The Sustainability of Robusta Coffee Under Global Change—A Review. Data says that we must match robusta production to genuinely suitable environments, plus invest in lower-input cultivation and alternative coffee species.
- Borassus Akeassii Facing Societal and Environmental Challenges: Case Study of the Gouin Society of Southwestern Burkina Faso. Data says that we need to conserve this multipurpose palm once central to Gouin livelihoods together with the local knowledge and practices that make it useful.