- There are still people who think oca is a kind of potato. After all we’ve done for them.
- And speaking of New Zealand Yams, here’s an old article about Tasmanian boutique potatoes.
- Pasture diversity for animal welfare and profit
- Young scientist in sub-Saharan Africa? Get trained on aspects of neglected and underutilized species.
- So you thought kale was an ancient veggie? Think again. NYT features kale innovators.
Stop vitamin A supplements
The editorial by Thorne-Lyman and Fawzi in 2011, (1) referring to the meta-analysis of the impact of vitamin A supplements by Mayo-Wilson, Imdad and others, (2,3) has now become more important than ever. The DEVTA results, only informally available in 2011, have now been published, (4) with extensive implications; indeed, as the editorial (1) says: ‘… the null findings have left lingering questions. Is vitamin A supplementation effective?’. These results have been the subject of conflicting comments recently in the Lancet, e.g. (5,6). But a number of inferences that should be drawn from the compilation and analysis of the evidence from trials prior to DEVTA (2,3) help answer this lingering question, and have not received adequate attention. There are three key related points, which now point to the need to seriously consider concrete steps to move beyond 6-monthly vitamin A supplementation at unphysiological levels.
OK, there’s a lot in that introduction to a recent paper in the British Medical Journal to digest, but it is worth it. I know I bang on about the colossal boondoggle that is high-dose vitamin A supplementation, but there’s a reason. It seems to be a complete waste of money based on a very limited reading of the evidence. In 2011 the BMJ published an editorial on Improving child survival through vitamin A supplementation (which is behind a paywall) that referenced a meta-analysis of supplementation. The new paper — Is vitamin A supplementation effective? — brings things up to date with a more detailed analysis of some of the research only hinted at in the original articles. Bottom line: there is no evidence for large-scale effectiveness of vitamin A supplements on child mortality.
As the authors of the rebuttal ask, why are resources still going into supplementation campaigns of the old sort? And they conclude:
Improved diets, fortified foods, and multiple micronutrient provision would surely bring broader improvements in nutrition to more people, including reproductive aged women who are now largely excluded.
Brainfood: Buckwheat crossing, Cedar restoration, Sustainable tapping, Indian goats, Indian horses, Kenyan yams, Lithuanian cranberry, Appalachian ethnobotany, AVRDC peppers, Chicken breeds
- Progress and prospects for interspecific hybridization in buckwheat and the genus Fagopyrum. Not easy.
- Mechanisms for the successful biological restoration of the threatened African pencilcedar (Juniperus procera Hochst. ex. Endl., Cupressaceae) in a degraded landscape. Needs help from local Acacia. Isn’t diversity wonderful?
- Tapping latex and alleles? The impacts of latex and bark harvesting on the genetic diversity of Himatanthus drasticus (Apocynaceae). Tapping latex leads to loss of genetic diversity, but they have a plan for sustainable harvesting.
- Analysis of genetic diversity in berari goat population of Maharashtra state. “Berari is not a recognized breed but a well established local population of goat which is yet to be fully explored for its phenotypic and genetic aspects.” So what would it take to recognize it? This paper?
- Molecular phylogeny of Indian horse breeds with special reference to Manipuri pony based on mitochondrial D-loop. It’s the most different of the 5 breeds of the sub-continent (yes, apparently only 5), and the most similar to the Thoroughbred.
- Estimation of genetic diversity of the Kenyan yam (Dioscorea spp.) using microsatellite markers. Most variation within provinces. And?
- Morphological and genetic diversity of European cranberry (Vaccinium oxycoccos L., Ericaceae) clones in Lithuanian reserves. Enough morphological variation to think about domestication; enough molecular marker variation to think about writing another paper.
- Down deep in the holler: chasing seeds and stories in southern Appalachia. It’s all about the friendships.
- Pepper (Capsicum spp.) Germplasm Dissemination by AVRDC – The World Vegetable Center: an Overview and Introspection. Here come the numbers: 8,165 accessions of Capsicum conserved, 11% of global total; 6,008 genebank accessions (20%) and 23,972 improved advanced lines (80%) distributed in 25 years; 51 open pollinated and hybrid cultivars of hot and sweet peppers commercialized by public and private sectors in South Asia, West Africa, Central Asia and the Caucasus since 2005.
- Genetic characterization of local Italian breeds of chickens undergoing in situ conservation. Breeds are breeds.
Nibbles: Evolution, Kimchi, Ancient date, C4FRC, US wine history, Fishing, Kew Cucurbita erection, Old wine, Orange cassava
- Enjoying a mango, lychee or cashew? Thank the Eocene-Oligocene glaciation.
- A grand tasting of Korean kimchi, in New York next week. #wishiwerethere.
- The “Methuselah date” continues to thrive. How soon before we have a comparative sequence? (We missed an earlier report.)
- You know what else is thriving? The Crops For The Future Research Centre, that’s what.
- The home state of US winemaking? You’ll never guess.
- Fishing myths busted. No, not the one about giving someone a fish vs providing capacity building in a piscatorial framework. Carpe carpam!
- Kew builds a pyramid! Of pumpkins, settle down.
- A well-aged wine to go with those cucurbits? How about this 6000 year-old Greek number? I think you’ll be amused by its presumption.
- Nice enough story of cassava improvement from CIAT, except that it is missing the beginning (the genebank?) and the end (blindness prevented).
Nibbles: Russian ‘rooms, CWFS, Small farmers and their systems, CABI pest maps, Aussie aid, Seed saving pod, Fiji video, CWR conference, Baobab & peanut festivals, Caribbean meets, Irish food security meet, Potty for pots, Salty microbes, Domesticated stomata, Bayer in Hyderabad
- Normal Russians hunt mushrooms.
- Committee on World Food Security meets. Not many people hurt.
- Normal Indian farmers go back to the future. So, in a different way, do Egyptian farmers. Rikin Gandhi probably knows all about it, and has made videos of it.
- I wonder if they’ve told the folks at the new, very agroecological Berkeley sustainable food institute. Though some would suggest they’re on a hiding to nothing there.
- You want past and future? Historical records used to predict spread of pests.
- When is development aid not development aid?
- Cherfas on Cavagnaro on seed saving. Trifecta.
- Cool ACIAR videos take me back to my stint in Fiji.
- International Conference on Utilization and Conservation of Crop Wild Relative (CWR) and Landrace (LR) Diversity for Crop Improvement. First order of business: think of a new name.
- Eden has a Baobab Festival. No word on the factsheet situation. But maybe you’d rather play it safe and try a peanut festival instead? OK, how about Coconuts of the Caribbean? No? Agrotourists of the Caribbean, then?
- Our Food. Our Future. Sustainability: The Bottom Line. Their presentations. Tell me if you find any agrobiodiversity in there. Well I dunno, maybe there will be some in the upcoming 2020 Policy Consultation on Building Resilience for Food and Nutrition Security, in 2014.
- Can you grow baobabs in a pot, I wonder? Or hydroponics for that matter.
- Salt-tolerant bacteria assist rooting in degraded soils. Easier than breeding, I guess.
- No consistent effect of domestication on stomata. Worth a try.
- Bayer goes to Hyderabad. To be near ICRISAT?