- Representing two centuries of past and future climate for assessing risks to biodiversity in Europe. Temperature up 3-6°C throughout Europe by end of century, rainfall down in south, up in north. Sounds lovely.
- Gourmandizing Poverty Food: The Serpa Cheese Slow Food Presidium. Trying to bring back a lost Portuguese cheese is romantic and elitist. Wish they’d just say what they really mean.
- Genetic diversity of wild grapevine populations in Spain and their genetic relationships with cultivated grapevines. If there’s a genetic contribution of wild grapevines to cultivated in Spain, it’s not great.
- Revisiting the origin of the domestication of noni (Morinda citrifolia L.). Let’s just say Pacific islanders won’t be pleased.
- The desert and the sown: Nomad–farmer interactions in the Wadi Faynan, southern Jordan. Changes from sedentarism to pastoralism are mainly due to chance.
- Stevia rebaudiana Bertoni, source of a high-potency natural sweetener: A comprehensive review on the biochemical, nutritional and functional aspects. Not just sweetness, folic acid, vitamin C and all of the indispensable amino acids except tryptophan too.
- Gene flow among wild and domesticated almond species: insights from chloroplast and nuclear markers. The main insight being that it happens a lot, in both directions.
- Agricultural Technology, Crop Income, and Poverty Alleviation in Uganda. New peanut varieties increase incomes and reduce poverty, but aren’t enough on their own.
- Plant diversity improves protection against soil-borne pathogens by fostering antagonistic bacterial communities. It sure does, at least in a long-term grassland.
Nibbles: Sunflower breeding, Indian cows, New varieties and income, Climate change and extinction, Honeybee threat, Figs, Apple history, DIY Luffa, IRRI DDG blog
- The Russian sunflowers are coming! The Russian sunflowers are coming!
- Holy cow! Can’t do better than The Hindu’s headline. And more.
- CIMMYT says groundnut varieties good for income. ICRISAT unavailable for comment.
- But are they climate-proof?
- Because it could be worse than we thought for many species. And more. And what it means for in situ.
- The latest on what’s killing bees.
- The fig, in all its recondite glory.
- Apples of France, Part Deux.
- All you ever wanted to know about growing your own luffa.
- IRRI DDG tries his hand at growing a rice crop. And blogs about it to boot. A nice idea, which should be widely emulated in the CG.
Nibbles: Apples, Koraput recognized, Nuts
- Cynthia gives us her personal history with apple diversity, and the history of Tarte Tatin; yum!
- Farmers in Koraput, India, recognized as Globally Important Agricultural Heritage System (GIAHS).
- Ugandan farmers who select one of four new groundnut varieties increase incomes. Good to know. What happens to the old varieties?
Predictions for 2012: maize will be affected by climate
I predict that we (using the term in its widest possible sense) will understand the links between growing conditions and yield much more deeply. In particular, how changes in a plant’s environment will affect its output.
This is based on Heat, Humidity and Crop Yields, a post by Michael J Roberts, who has an economist’s ability to build complex models that explain some things rather well. The latest looks at how much better predictions of yield are when vapour pressure deficit is added to the model. As Roberts explains:
Vapor pressure deficit, a close cousin to relative humidity, has a linear relationship with evaporation, and is a key input in many crop models.
The point is that VPD is not that easy to measure, but that if you manage to do so, it is very handy.
There are two interesting things about the VPD measure we construct. First, average VPD for July and August is closely associated with our best-fitting extreme heat measure, at least in Illinois. Second, adding VPD for the season and VPD for July and August to our standard regression greatly improves prediction. Using just five variables, these two plus growing degree days (degree days between 10C and 29C), extreme heat degree days (degree days above 29C) and precipitation, we can explain over 70 percent of the variance of Illinois yields, excluding the upward trend. That’s better than USDA’s August and September forecasts, which are based on field-level samples and farmer interviews. The model can explain almost half the difference between the August forecast and the final yield for Illinois.
OK, so it is only in Illinois. And only for maize. But it might yet end up improving crop prediction models more generally.
This would appear to be post No. 5000. That it deals not with agrobiodiversity but with the effects of climate change on a single species, and probably very few varieties of that species, seems rather fitting.
Leftovers: Coconuts, Genebank, Vegetables, Famine, Danish, Bissap, Brazil nuts, Dates, Papas y mas, Fruit, Rice, Everything
We found these nibbles at the back of the fridge, and they’re not too mouldy, so lets fry them up before we get anything fresh.
- Boss of India’s agricultural research exhorts international coconut genebank to do more and be heard.
- And, first out of the gate for 2012, Nepal says it will create a new genebank for plants “on the verge of extinction”.
- Immigrant urban agriculture — in Cleveland, Ohio.
- Aid man Edward Carr interviewed: “drought does not equal famine”
- Meetings on “biodiversity” in Europe, under the Danish presidency. Indigestible?
- Hibiscus tea, what a tonic.
- Resources Research goes crazed for book about brazil nuts, and other Amazonian agrobiodiversity.
- A cure for Bayoud disease of dates? And it’s based on medicinal plants!
- Pueblos andinos reciben ejemplares de tubérculos nativos. Otra vez?
- Guerilla grafting? Now there’s an idea for “covert agriculture”. Wonder what the graftees think.
- “The giant panda of the botanical world”? Blimey. A new reserve for real wild rice.
- Huge Satoyama-style paper from Bioversity on THE USE OF AGROBIODIVERSITY BY INDIGENOUS AND TRADITIONAL AGRICULTURAL COMMUNITIES IN: ADAPTING TO CLIMATE CHANGE And they’re the ones doing the shouting.