- This origin-of-dogs saga is getting tedious. Figure it out, already.
- Dutch wheat varieties still improving.
- Chinese ate wild grasses for 20,000 years before domesticating crops.
- Fungal endophyte helps tall fescue cope with drought and high temperatures, but some fungal genotypes more than others. And some do it without producing livestock toxins.
Transforming agriculture in Africa
I challenged our friend Andy Jarvis to summarize his just-out paper (with assorted co-authors) in Nature Climate Change 1 in a tweet, and this is what he came up with:
@AgroBioDiverse Model maps where + when farmer must change staple crop: beans, banana + maize hit most; sorghum, millet + cassava to rescue.
— Andy Jarvis (@ajarviscali) March 7, 2016
Not bad, but let’s unpack it a bit. Andy and his colleagues ran climate models for sub-Saharan Africa and looked at what would happen over the course of this century to the areas where different crops are currently being grown. Crucially, they tried to figure out when it would become untenable to continue growing a given crop in a given spot, thus triggering a switch to another crop altogether. Absent, that is, some kind of adaptation, such as bringing in varieties better suited to the new conditions, or altering agronomic practices.
As Andy says in his tweet, beans, banana and maize are the worst hit: farmers in 60% of the current African bean area, and about 30% of that of the other crops, will need to think about some other crop at some time during the 21st century. That hits home, as people who follow this blog will know that my mother-in-law’s farm is in maize-and-beans country. Well, fortunately, the highlands of central Kenya do not seem, in this analysis, to be too badly impacted. But what are the descendants of my mother-in-law’s equivalents in the dryer parts of East Africa, and in southern Africa, to do?
…farmers in the maize-mixed farming system might, in the long run, shift to more drought-tolerant cereals such as millet and sorghum, which we identify as viable substitutes in many locations, although these may experience yield reductions.
Alas, there’s more:
…in some areas in the southern Sahel and in dry parts of Southern and Eastern Africa even these drought-resilient crops might become increasingly marginal. For these areas, a more drastic transformation to livestock might be necessary, because cropping might not be a viable livelihood strategy in the long run.
Scary. Better get breeding.
Nibbles: CC & death, GBIF enhancements, Killer fungi, Lion trees, Old oaks, Gourmet ganja, Wild horses, Resistant cassava, Contested agronomy, p-values
- Climate change is going to hit us where we live. Or die.
- How to make GBIF more relevant for agrobiodiversity: a 10-point plan.
- Killer fungi on the loose? ‘Twas ever thus. But genomics will save us?
- Planting trees is good for lions too.
- There are still medieval oaks in England.
- “…where sommelier-like ‘budtenders’ sell gourmet ganja in a designer showroom.”
- Rewilding the wild horse.
- More about the cassava variety Kasetsart 50, poster child for CGIAR impact.
- It’s not just genetic resources that are contested. Yep, agronomy too.
- “Scientific conclusions and business or policy decisions should not be based only on whether a p-value passes a specific threshold.”
Nibbles: Craft beer, Citizen breeding, Botanical e-book, Horticultural bio-piracy, Pollinator reports, Rainforest Alliance map, Italian phytotron, YAP portfolio
- Peak hops? Say it ain’t so.
- Day-long plant-breeding-for-the-masses course at Oxford in April.
- Botanists of the twenty-first century: Roles, challenges and opportunities. An e-book for the ages.
- Genes to beans: polyploidy on a plate. A Royal Society lecture by Kathy Willis.
- Some naughty people have been collecting plants in India without permits.
- IPBES tells it like it is on pollinators. In a press release. You try to find the actual report online. Oh and here’s FAO getting in on the act. Though at least for this the report is easy to find.
- Great interactive map of the work of the Rainforest Alliance. Check out the agriculture tab.
- Italian researchers build a time machine. A phytotron, really, but let them have their little fun.
- Speaking of fun, GCARD3 Youth Agripreneurs Projects on “Climate Resilient Indian Cattle” and “fake seeds.” Lots more too, all interesting.
CCAFS tells the world how agriculture can adapt to climate change
The CGIAR Research Program on Climate Change, Agriculture and Food Security has prepared syntheses papers on two of the topics related to agriculture that are being considered by UNFCCC’s Subsidiary Body for Scientific and Technological Advice (SBSTA) in 2016. The topics have incredibly unwieldy and confusing titles. They boil down, I think, to agricultural practices, technologies and institutions to enhance productivity and resilience sustainably, but you can read all the subordinate clauses in the CCAFS blog post which announces the publication of their reports.
Of course, what we want to know here is whether crop diversity is adequately highlighted among the said practices, technologies and institutions. The answer is, as ever, kinda sorta. The following is from the info note associated with the first paper, “Agricultural practices and technologies to enhance food security, resilience and productivity in a sustainable manner: Messages to the SBSTA 44 agriculture workshops.”
Crop-specific innovations complement other practices that aim to improve crop production under climate change, e.g. soil management, agroforestry, and water management. Crop-specific innovations include breeding of more resilient crop varieties, diversification and intensification.
Examples include the Drought Tolerant Maize for Africa initiative, disease- and heat-resistant chickpea varieties in India, improved Brachiaria in Brazil, hardy crossbreeds of native sheep and goats in Kenya, as well as changes in the crops being grown, such as moves from potato into organic quinoa, milk and cheese, trout, and vegetables in the Peruvian highlands.
The other paper, “Adaptation measures in agricultural systems: Messages to the SBSTA 44 Agriculture Workshops,” focuses on structures, processes and institutions. I particularly liked the emphasis on the importance on indigenous knowledge and extension systems. But why no mention of genebanks? Especially as Bioversity’s Seeds of Needs Project was nicely featured as a case study in the first paper. Here, after all is a concrete example of institutions — national and international genebanks — linking up to farmers to deliver crop diversity in the service of adaptation.