- Climate change threatens crop diversity at low latitudes. At low latitudes maybe about a third of the production of 30 major crops shifts outside their climatic niche under 2-3°C global warming, and potential food crop diversity declines on half of global cropland, but potential diversity increases elsewhere. So that’s all good then?
- Dietary species richness provides a comparable marker for better nutrition and health across contexts. Dietary species richness (DSR) can be used as a marker for the nutrition and health. If DSR is related to production diversity, I guess that could mean trouble at lower latitudes?
- Socio-economic factors constrain climate change adaptation in a tropical export crop. Actually the reduction in suitable area is 60% for banana. And there’s a decline in yield too. Unclear what that will do to DSR.
- Plant evolutionary history is largely underrepresented in European seed banks. Would be interesting to apply this specifically to crops. Or even just crop wild relatives.
- The Idiot’s Guide to Effective Population Size. Can this be usefully applied to crops? I’d like to see how banana comes out.
- Digital Revolution in Farmer Fields: VarScout Unveils Kenya’s Varietal Landscape – The Case of Potato. I’d like to see how banana comes out.
- Genetic Diversity and Distinctiveness of Common Beans (Phaseolus vulgaris L.) Between Landraces and Formal Cultivars Supporting Ex Situ Conservation Policy: The Borlotti Case Study in Northern Italy. It’s difficult, but not impossible, to distinguish — and maintain — landraces of Borlotti beans apart from obsolete and modern cultivars. I wonder if VarScout would help.
- Oaxacan Green Dent maize is not from Oaxaca. Watch out for landrace names.
- Mucilage produced by aerial roots hosts diazotrophs that provide nitrogen in Sorghum bicolor. Not just maize. And another aspect of diversity to have to worry about.
- Cryptic diversity of cellulose-degrading gut bacteria in industrialized humans. And another… What’s the interaction with DSR though?
Nibbles: Agrobiodiversity, HealthyDiets4Africa, Warwick genebank, NPGS trifecta, Florida potatoes, On farm, Guatemalan community seed banks, Welsh black oats, WorldVeg genebank, Turkish olive genebank, Citrus genebank, Orchard of Flavours, Piper diversity, Ancient Egyptian food, Chocolate & world history, Ancient DNA & breeding
- What has agrobiodiversity ever done for us? Kent Nnadozie of the Plant Treaty lays it out.
- Michael Frei of the HealthyDiets4Africa project doesn’t need it laid out.
- Neither do the people who awarded a prize to Charlotte Allender of the UK Vegetable Genebank.
- What has the US National Plant Germplasm System ever done for anyone? The Guardian, the NY Times and NPR News lay it out. I guess someone in D.C. needs it laid out, but will it make any difference?
- Everyone: Potatoes in Florida! Breeders: No problem. NPGS: You called?
- Here’s The Guardian again, but this time thinking it is making the case for not putting seeds in the fridge, whereas in fact it’s making the case for the complementarity of ex situ and on-farm conservation.
- Speaking of on-farm conservation, here’s a couple of pieces on community seed banks in Guatemala.
- Speaking of on-farm conservation, here’s the heart-warming story of Welsh organic farmer Gerald Miles.
- Meanwhile, the World Vegetable Centre opens a new genebank.
- And Türkiye hosts an international, no less, olive genebank.
- And genebanks can be so beautiful, like works of art. Former Tate Modern director Vicente Todolí lays out his citrus samples. I wonder what he could do with olives.
- Botanic gardens are beautiful and often act a little bit like crop genebanks. Here’s an example from Portugal I stumbled onto recently, I forget how.
- You know what I’d like to see? An international pepper genebank, that’s what. No, not the kind that might be in those Guatemalan community seedbanks or the WorldVeg genebank. This sort of pepper. Piper pepper.
- I bet the ancient Egyptians had pepper. Egyptian archaeologist Mennat-Allah El Dorry lays out what else they had.
- Maybe you could lay out world history using pepper. You can definitely do so using cacao and chocolate.
- No, not using ancient DNA, but actually…
Brainfood: Ag and CC, Improved varieties, Yield growth, Food system transformation, CGIAR maize, Genetic erosion, NBSAPs, Technology & conservation, Cattle breeding
- Conventional agriculture increases global warming while decreasing system sustainability. The global warming potential of conventional grain agriculture has increased x8 from 1961-2020, whereas sustainability index has decreased x3. Whatever are we to do?
- Adoption of improved crop varieties limited biodiversity losses, terrestrial carbon emissions, and cropland expansion in the tropics. Crop improvements from 1961–2015 resulted in less cropland expansion, lower greenhouse gas emissions and fewer extinctions. Right, so what we need is more of the same?
- Yield growth patterns of food commodities: Insights and challenges. “The same” has meant that yield growth for dozens of crops is not slowing down. At least in the global aggregate. At least for now. At least for calories. So no resting on laurels out there!
- Governance and resilience as entry points for transforming food systems in the countdown to 2030. Especially as regards governance and resilience.
- Poverty and yield effects of CGIAR maize varieties in smallholder farming systems of Zambia. CGIAR breeders are definitely not resting on their laurels, but it looks like that won’t be enough.
- Global meta-analysis shows action is needed to halt genetic diversity loss. CGIAR and other breeders are going to need that genetic diversity that is being lost. Whatever are we to do?
- How can biodiversity strategy and action plans incorporate genetic diversity and align with global commitments? We could make better, more inclusive biodiversity conservation plans, for one thing. Which include agricultural biodiversity.
- Exploring the role of technology in the trade-off between biodiversity and poverty alleviation across countries. It would be good if those better plans included technology adoption.
- Liberalization of animal genetic resources trade and local animal productivity outcomes: A natural experiment. And yes, genetic diversity is a technology. Sort of.
Save our coffee!!!
The American Geographic Society had a very informative post about coffee prices on Facebook a few days back. I don’t really want to link to it, but I’m sure you can find it if you want. Anyway, here’s the text.
Coffee prices have hit a 50-year high due to a combination of rising costs of production, supply chain disruptions, and climate change–related declines in crop yields. Coffee plants are sensitive to changes in precipitation and temperature, and recent droughts in Brazil and Vietnam resulted in poor harvests. Coffee companies are passing on the extra costs to customers, with the average retail price of ground roast coffee increasing 15 percent in American cities in the past year and peaking at over $7 a pound. As climate change will continue to threaten coffee harvests in the years to come, projected to shrink the land available for coffee cultivation by half, prices are expected to keep rising.
They also helpfully link to three recent supporting articles in the NY Times, The Independent and on ABC News.
And they reproduce a map from a National Geographic article from a couple of years back.
Social media as it should be done.
And since we’re on the subject, there are some very cool resources on coffee diversity on the website of Christophe Montagnon, a renowned expert on the crop. For example, I really like this summary of the global history of arabica.
We’re going to need those resources — and indeed that diversity — if we want to keep drinking coffee.
Brainfood: Climate change & health, Cassava disease treble, Solanaceae disease, Parasitoid variation, Cucurbita diseases, Orange disease, Chestnut disease
- Climate change and nutrition-associated diseases. Climate change is going to be bad for human health. To help us cope with the heavier burden of disease, crops will need to be able to cope better with pests and diseases themselves…
- Genome-wide association study of cassava brown streak disease resistance in cassava germplasm conserved in South America. …and studying genebank collections will help us help them do just that…
- Candidate genes for field resistance to cassava brown streak disease revealed through the analysis of multiple data sources. …though that’s only the first step…
- Comparing fresh root yield and quality of certified and farmer-saved cassava seed. …to getting quality seeds into farmers’ fields.
- Breeding for resistance to bacterial wilt in Solanaceae crops: lessons learned and ways forward for Gboma eggplant (Solanum macrocarpon L.), a traditional African vegetable. You’ll want some disease-resistant vegetables to go with your disease-resistant cassava. And for that you need to understand genetic variation in both the crops and their pests.
- The influence of genetic variation on pre-oviposition processes for host-parasitoid co-evolution. And indeed in the enemies of the pests.
- Breeding and genetics of resistance to major diseases in Cucurbita—A review. Pumpkin and squash have plenty of pests and diseases, but also diversity.
- The Rediscovery of ‘Donaldson’ Sweet Orange, a Variety That Has Potential for Use in Orange Juice. Rummaging through that diversity can take time, but (s)he that seeketh findeth. And the game is worth the candle.
- Resumption of chestnut cultivation in Lombardy: starting from native genetic resources. Worth it indeed.