- The impact of distance and a shifting temperature gradient on genetic connectivity across a heterogeneous landscape. Climate change bringing formerly genetically isolated populations together, possibly increasing adaptive potential.
- Intra-varietal genetic diversity of the grapevine (Vitis vinifera L.) cultivar ‘Nero d’Avola’ as revealed by microsatellite markers. 15 distinct genetic group among 118 plants from 30 Sicilian vineyards seems quite a lot.
- Emerging cultivation of oregano in Sicily: Sensory evaluation of plants and chemical composition of essential oils. More from Sicily. Wild is best.
- Effect of vineyard-scale climate variability on Pinot noir phenolic composition. Its complicated. But at least Pinot noir is not like Nero d’Avola. Or is it? Oh, crap.
- Landraces in Inland areas of the Basilicata region, Italy: monitoring and perspectives for on farm conservation. “Farmer-maintainers” of landraces tend to be old and isolated. Interesting stratified sampling strategy. Basilicata? They grow horseradish there, don’t they? They do indeed.
- Critical distances: Comparing measures of spatial accessibility in the riverine landscapes of Peruvian Amazonia. GIS-calculated time-based accessibility influences rural livelihoods and land use pressure. And agrobiodiversity? Apply to Basilicata next?
- A morphological assessment system for ‘show quality’ bovine livestock based on image analysis. Image of side of animal fed through neural network almost as good as experts in determining how beautiful the animal is. well there’s a triumph for science.
- Endosymbionts and honey bee colony losses? Something else to add to the list of possible causes of colony collapse disorder.
- Commercial teas highlight plant DNA barcode identification successes and obstacles. About a third of products revealed signatures of stuff that was not listed in the ingredients, but that could be due to a number of reasons.
- What would happen to barley production in Finland if global warming exceeded 4°C? A model-based assessment. Nothing good, surprisingly. Better get some new varieties, I guess.
- Cajanus platycarpus (Benth.) Maesen as the donor of new pigeonpea cytoplasmic male sterile (CMS) system. Gotta love those CWRs.
- Australia’s Stock Route Network: 1. A review of its values and implications for future management. Established for movement of livestock before trucks and trains, but has lots of endangered species and communities. Great value on many fronts, in fact. Needs proper governance though.
- Should forest restoration with natural hybrids be allowed? Yep.
How grafting a plum tree led to an obsession
Joseph Needham is known as the Man Who Put the S in Unesco. And he did indeed successfully lobby Julian Huxley for the inclusion of science in the mandate of that new-fangled UN organization. More importantly, however, he is also known for his monumental work Science and Civilization in China. Eventually stretching over 27 volumes and comprising more than three million words, Needham worked on the project for the best part of fifty years, from the Caius College, Cambridge room which is now inhabited by Stephen Hawking, as it happens. And the volumes have continued coming out after Needham’s death in 1995.
But what possessed him to set off on such a journey, a journey which would consume his whole life? Well, it’s a fascinating story, and beautifully recounted by Simon Winchester, who wrote a recent biography of Needham, in a podcast in TVO’s Big Ideas series. If you’ve got an hour spare, listen to the whole thing. If you don’t, skip to 38 minutes in, and just listen to Winchester’s description of the epiphany Needham had in 1942 in a Kunming garden, a matter of only hours into his first visit to China, after five years of obsessively studying the language back in Cambridge at the knee 1 of his remarkable Chinese biochemist mistress. Needham had an interesting, complicated private life. Anyway, he was there on a mission from the British government to report on the needs of Chinese universities during the difficult years of the Japanese occupation, when they had in effect migrated west, trying desperately to continue functioning under siege.
That epiphany has to do with agricultural biodiversity, and is the reason why I’m talking about this here. Although of course Needham’s work includes huge accounts of botany, agriculture and agroindustries, forestry, cooking and food sciences, and one of these days I’ll have to delve into them to see what they say about numbers of varieties in the past. But one thing at a time, what Needham saw in that wartime garden was an…
…old Chinese gardener in ragged blue coat and trousers with a wispy white beard who potters around smoking one of these long pipes with a tiny bowl — and a mongol cap, periodically performing elaborate grafting techniques on the plum tree. 2
Comparing that technique to what he remembered his father doing in their London SW11 garden many years before brought home to him how differently they did things in China. But there was something else. Here’s Winchester:
Perhaps the Chinese not only did their grafting differently but may have done this different kind of grafting very much earlier than anyone in Europe had done anything like it. Perhaps this old man’s technique was thousands of years old. Further still, quite possibly Needham could prove it was thousands of years old by researching old Chinese books on botany — which of course he could now read with ease.
He did research the problem of course — for fifty years. And it’s true, he did prove the antiquity of the grafting techniques that he saw. And of many other Chinese inventions too, thousands of them. That was the project of Science and Civilization in China. It changed the West’s perception of the Middle Kingdom forever, and the idea of it was born watching an old man top graft a plum tree in a Kunming garden.
There’s a coda to the story. The ashes of Joseph Needham and his two wives (both interesting characters in their own right), whom he outlived, were commingled on his death and spread under a Chinese plum tree growing in the gardens of the institute named after him in Cambridge, and which continues his work.
Nibbles: Heat, Watermelons, Rye, Apples, Solanum melongena, Pinus edulis, Food systems, Indian rice, Glycene
- Heat takes growing toll on Kansas farm crops. Heat, not drought. Just sayin’.
- Amateur Hour I: watermelons.
- Amateur Hour II: perennial rye.
- Amateur Hour III: red-fleshed apples.
- Bronjenas. An eggplant by any other name is still an aubergine (Solanum melongena).
- Not your average pinoli.
- We need to fix the food system. But how? Answers on a postcard, please.
- Saving traditional rice landraces in India. Of which there are maybe 3,000 in the NE alone. No mention of genebanks.
- Superstar Swedish soybeans
Gender inequity in agroforestry seed supply
You may remember that in last this week’s Brainfood we linked to a paper which looked at agroforestry input supply systems, and recommended a commercial, decentralized model for getting high quality tree seeds to smallholders. Now I’ve come across “Gender and agroforestry in Africa: a review of women’s participation.” The bottom line — not surprisingly, alas — is that women’s participation tends to be lower in enterprises in which there’s more money at stake. But this second paper only looked at the outputs, not the inputs. It would be interesting to know whether women tend to be edged out of commercial tree seed supply enterprises too. I suspect they do, which suggests that following the recommendation of the first paper for tree seed supply systems might result in even more pronounced gender inequity. So what could be done about it? Both papers include ICRAF staff as co-authors, though there’s no overlap. Maybe some of them have already thought about this and might like to comment here.
Brainfood: Chinese landscapes, Agroforestry seed, Italian lentils, Carrot heterosis, Taro in islands, Indian wheat, AnGR ex situ, Woodland shrines, Vitamin A, Caraway, Adansonia, Neotropical blueberries, Yeast genetics, Rotations
- Agricultural landscapes and biodiversity in China. Traditional farming practices good for biodiversity, modern bad. Therefore need intensification, to take pressure off natural habitats. But no, wait, that usually means monocultures and chemicals, which are bad. Oh crap. No mention of genebanks.
- Innovation in input supply systems in smallholder agroforestry: seed sources, supply chains and support systems. Decentralized commercial system probably best for getting quality agroforestry seed to smallholders. Unfortunately, nobody listening.
- Characterization of Italian lentil (Lens culinaris Medik.) germplasm by agronomic traits, biochemical and molecular markers. I object in principle to any paper that says a particular landrace is “the best.”
- The relationship between heterosis and genetic distances based on RAPD and AFLP markers in carrot. It is positive. Was this really not known before in carrots? What am I missing?
- Genetic diversity of taro (Colocasia esculenta (L.) Schott) in Vanuatu (Oceania): an appraisal of the distribution of allelic diversity (DAD) with SSR markers. 10 villages, 344 landraces, 324 distinct multilocus genotypes, genetic pattern reflects social networks. Situation in Andaman Islands not quite so interesting.
- A study of genetic diversity among Indian bread wheat (Triticum aestivum L.) cultivars released during last 100 years. More diversity after Green Revolution than before, but steadily decreasing.
- Ex situ conservation genetics: a review of molecular studies on the genetic consequences of captive breeding programmes for endangered animal species. Restricted access, and you know what? I couldn’t care less.
- Consequences of wooded shrine rituals on vegetation conservation in West Africa: a case study from the Bwaba cultural area (West Burkina Faso). I expect there are some, but with restricted access, what’s the point of even linking?
- Evaluating sweet potato as an intervention food to prevent Vitamin A deficiency. To have an effect, you’d have to replace all the other types with orange-fleshed ones. Well, almost. Wonder whether it will be presented at the “International Scientific Symposium on Food & Nutrition Security Information: From valid measurement to effective decision-making” early next year.
- Evaluation of variability of morphological traits of selected caraway (Carum carvi L.) genotypes. They’re actually breeding this stuff in Poland. But they had to get their germplasm from botanical gardens around Europe.
- Variation in baobab seedling morphology and its implications for selecting superior planting material. There is some.
- Edible Neotropical blueberries: antioxidant and compositional fingerprint analysis. The 5 species involved have different ones.
- Population genomics and speciation in yeasts. There’s a question as to whether yeast species in fact exist in any meaningful sense.
- Cereal–forage rotations effect on biochemical characteristics of topsoil and productivity of the crops in Mediterranean environment. Continuous cereal stressed the soil.