- WorldCuP: A database of checklists documenting the World’s Cultivated Plants and their distributions. Cool new database records 1,444,325 occurrences representing 91,358 accepted cultivated plant species across 2,718 regions in 156 countries. Geographic coverage is extensive but uneven, with notable gaps in parts of Africa, southwest and central Asia, and Oceania. Most of the taxa recorded are not in existing major crop and useful-plant databases.
- Integrating multiple disciplines to locate the origins of domestication of crops. Combining evidence from botany, biogeography, genetics, archaeology, linguistics, and history overturns the traditional Mesoamerican hypothesis for cacao origins, supporting domestication in western Amazonia, probably involving multiple events. Peach palm’s domestication is best placed in southwestern Amazonia. Cupuaçu remains unresolved. Now for the other 91,355 species.
- Plant Species Mentioned in Abrahamic Scriptures: Implications for Biodiversity and Traditional Agriculture and Horticulture. Olive, grapevine and fig, together with cereals such as wheat and barley, occur prominently across the three scriptural traditions examined, while date palm is particularly prominent in the Qur’an. Not clear whether scriptures qualify as checklists.
- Crop landrace conservation, status, challenges and motivations in Great Britain. A national inventory (checklist even) identifies 566 landrace populations maintained on farms by 197 growers, alongside 1,876 British-origin genebank accessions, representing a total of 1,201 distinct landraces. Cereal and vegetable landrace cultivation has gone up since 2004, but forage diversity is increasingly threatened. Climate change, labour shortages and lower yields are the main challenges reported by growers.
- An inventory, threat and conservation assessment of UK wheat landrace diversity. The UK currently has 27 wheat landrace varieties growing on more than 700 hectares, an increase in both variety numbers and cultivated area since 2009. Interviews with 50 farmers identify insufficient market demand and limited seed availability as key constraints. So, not climate change, labour shortages and lower yields.
- Strong differentiation between source and ex situ populations of rare plant species revealed by next-generation sequencing. Across four rare plant species, ex situ populations showed significant genetic differentiation from their wild sources despite only one generation in cultivation, while overall genetic diversity and inbreeding did not differ significantly. Unrepresentative seed collection, unconscious selection during propagation or genetic drift could explain the differences. Something to test on all those British landraces, labour permitting?
- Rethinking the vineyard of Santorini in a changing climate and preserving an historic wine region. Recommends a staged transition from vineyard recovery to ecological regeneration, prioritising soil organic matter, drought management and indigenous grapevine diversity. Sounds like lots of labour will be needed.
- Conservation dilemmas: Xylella fastidiosa and the future(s) of olive farming. In Puglia, disease management is pushing olive farming towards competing futures: intensive, mechanised production vs the preservation of ancient trees as cultural landscapes. The fate of traditional groves depends less on technical disease solutions than on whether markets, subsidies and labour arrangements make their continued care economically viable. Well that doesn’t sound promising. Maybe try prayer?
Weed all about it
I think I vaguely knew that USDA had a hemp collection, but I would definitely not have been able to tell you that it was located in Geneva, NY, that it may be the largest in the world, or that it only started in 2021. Fortunately, though, the researchers responsible for the collection organized a USDA Hemp Stakeholder Event at Cornell AgriTech on September 10, and the good people at the International Hemp Podcast are summarizing the proceedings in a series of four episodes. Episode 1 is out, and it includes those tidbits I began with, as well as lots of other interesting information, about hemp in particular but also more generally about how the US genebank system works. Well worth a listen.
But does USDA in fact have the largest hemp collection in the world? Well, the podcast says it has over 800 accessions, and GRIN does indeed return 871 (714 active, 92 available) hits. However, Genesys, which gets its USDA data from GRIN, says 569, which is at least closer to the “N > 600 accessions” on the webpage of the USDA Hemp Germplasm Laboratory. As it’s a fairly new collection, this all probably just means that its numbers go up fairly frequently and USDA just hasn’t updated either its website or its data on Genesys lately. Anyway, that would still give it more accessions than at VIR (491), though fewer than in Ukraine (610). That Ukraine number is split over two institutes, however. So it does look like USDA has managed to put together the world’s largest hemp collection in just 5 years. Pretty impressive. Too bad the podcast doesn’t go into how they did it.
Brainfood: Archaeology edition
- Editorial: Food matters. Antiquity‘s editorial puts food at the centre of archaeology, a window onto societies, economies, identities and power: a fair place to start a run of items that dig into the evidence.
- Pottery residues provide earliest direct evidence for domestication and dairy processing in equatorial Mainland Southeast Asia. Molecular traces in ancient pottery provide direct evidence for animal domestication and dairy processing 3000 years ago where the rest of the archaeological record can be frustratingly coy. Complicates assumptions that dairying was restricted by tropical conditions or in pastoral societies.
- Agricultural Practices of Rice and Millet at the Largest Zhou Dynasty Settlement by the Weishui River in South-Central China. How rice (mainly) and millets (foxtail and broomcorn) were grown, processed and consumed side by side, 1046-256 BCE.
- Ancient DNA reveals early use of melons in China’s Song dynasty. Genetic evidence from archaeological remains pushes back the record of melon use in China (960-1279 CE). They weren’t domesticated there, though. And they weren’t sweet.
- Origin and Dispersal of Domestic Chickens in Africa: Integrating Archaeological, Genetic and Historical Evidence. Archaeology is combined with genetics and history to trace how chickens arrived and spread across the continent in waves: via Egypt around 300 BC, then Indian Ocean connections during the first millennium AD, the trans-Saharan trade, Bantu movements and regional exchange networks.
- Betel nut sucking is the earliest recorded evidence for the habitual use of a neuroactive plant drug. Not just food though. The archaeological record for habitual plant-drug use turns out to reach back a long way, approximately 25,000 and 16,000 years ago to be not-so-precise.
- Plants and Humans in the Ancient Near East. No, plants are definitely not just food. A new volume treating plants as active participants in religion, art and symbolism, with chapters on plants as persons in Mesopotamian anti-witchcraft rituals and on meeting gods under trees in the Hebrew Bible.
Nibbles: Amaranth webinar, FARA on fonio, Maslin, Gaza genebank, Nepal seeds, Golden Triangle tea
- New webinar series from the American Society of Plant Biologists will explore how underutilized (or is it opportunity) crops like amaranth can contribute to nutrition, food security and rural livelihoods.
- FARA highlights the tiny West African grain fonio as another crop with potential to improve nutrition, strengthen food systems and create new opportunities for farmers and value chains.
- Taiwanese tea has travelled an unlikely route into northern Thailand. It too was an opportunity crop at one time.
- Ethiopian farmers may have been practising regenerative agriculture for millennia, mixing wheat, barley and other grains in the same field. The Rockefeller Foundation is on it.
- Efforts to restore the Al Qarara Seed Bank in Gaza are offering a small but significant form of agricultural recovery.
- In Nepal, indigenous seeds are losing ground to hybrids, but seed advocates are fighting back.
Nibbles: Festivals, Wheat breeding, Cowpea, Community seed bank, Mint diversity
- Festivals, rituals and seed-saving go hand in hand, as this photo essay on Koraput’s Adivasis shows for World Indigenous Peoples Day.
- Speaking of unlikely alliances, Israeli and Palestinian researchers have teamed up on wheat that can take the heat in a warming, drying Middle East.
- Not to be outdone in the resilience stakes, the cowpea shrugs off both drought and flooding, according to FAO.
- If all this talk of resilient crops has you inspired, here’s a how-to on starting your own community seed bank, in South Africa or anywhere else for that matter.
- And for when preservation is really about nostalgia: Romania’s Buzau genebank is keeping childhood mint flavours alive, chocolate, clove and vanilla notes included.