- Agricultural biotechnology for crop improvement in a variable climate: hope or hype? Your guess is as good as mine.
- Pollinator insects benefit from rotational fallows. They do indeed.
- Biological and productive characteristics of silkworm mulberry varieties of different ploidy and their use for raising silkworms in different seasons. Amazing; more silk faster from polyploid mulberries.
- Mapping quantitative trait loci conferring blast resistance in upland indica rice (Oryza sativa L.). They’re there.
- Food relocalization for environmental sustainability in Cumbria. Fair enough, but what, actually, are the locavores going to eat?
- Relationships among twelve genotypes of roselle (Hibiscus sabdariffa L.) cultivated in western Mexico. Twelve genotypes split into two groups, could be important for breeding and production.
- Variation in qualitative and quantitative traits of cassava germplasm from selected national breeding programmes in sub-Saharan Africa. There is some, but not for everything.
- Global protected area impacts. There are some, but not everywhere.
- Diversity, geographical, and consumption patterns of traditional vegetables in sociolinguistic communities in Benin: Implications for domestication and utilization. 245 species, only 19% cultivated, with big differences among ethnic groups and geographical areas. Research and promotion needs identified.
- Observed trends in winegrape maturity in Australia. 1.7 days earlier per year for 1993–2009, 0.8 days earlier per year for 1985–2009.
- Still a lot of diversity out there, Europe edition: common bean in Sicily, melons near Madrid.
Seedbanks are a trillion-dollar business with big problems
If you consider genebanks as sources primarily of information — the genetic information contained in samples — then racks of sealed foil pouches and guarantees that 99% of the genetic diversity has been captured are probably deeply reassuring. There’s another side to storing biodiversity, though. Seedbanks (though often used interchangeably with “genebanks”) store a greater bulk of seeds often with the specific purpose not of making their genetic information available, but with the idea of using the seeds to restore the plant diversity of some damaged or degraded ecosystem.
The Millennium Seed Bank at Kew, for example, is explicit about this goal:
Restoring damaged habitats around the world is becoming an increasingly important aspect of our work.
The loss of ecosystem services from degraded habitats is a significant barrier to achieving international goals to reduce poverty, hunger and disease. Kew’s Breathing Planet programme aims to establish a global network of scientists and practitioners to use seed banks for the urgent repair and re-establishment of damaged native vegetation.
How realistic is this? An article in the latest Science says that the qualities stored in most seedbanks (and Kew is probably better than most) is “well short of the amount required to restore at the landscape-scale”. 1 It isn’t just the amount of seed either:
[M]ost seed banks are missing the technological resources and capacity to deliver landscape-scale restoration.
I had no idea that using seeds to restore ecosystems in this way was so huge. Merritt and Kingsley work in Western Australia, where the Gondwana Link Project “aims to repatriate with local indigenous species many thousands of hectares of former farmland to create a biological corridor spanning 1000 km” and where “land areas disturbed by mining in the biodiverse semiarid region of the Pilbara … exceed 20,000 ha”. Overall, they say that “restoration is now a global business worth at least $1.6 trillion annually and likely to grow substantially”.
Against that background a little successful research, for example to improve survival in storage or germination rates and establishment, could have a huge impact. Take the example of that Pilbara region.
Current seeding rates for restoration in this region are 5 to 7kg/ha, and an average seed price is $749 ± 65 per kg, based on the available seed prices from commercial suppliers for 88 dominant Pilbara plant species. If restoration research reduced the number of seeds required to achieve plant establishment targets by 30%, this research effort would represent a reduction in seed use of ~30 to 42 tons and a saving of $20 to $34 million in seed purchase costs. (References removed.)
What has any of this to do with agricultural biodiversity? Not a lot, at first sight. Merritt and Dixon do point to the possibility of connecting these vast restoration efforts to local communities by integrating opportunities to develop traditional foods and medicines. But do the people who are now storing and then sowing tonnes of wild seeds even consider the need also to store useful species and the traditional knowledge to make use of them? The authors also appeal to “a village cattleman from Sudan” who pleaded with delegates at COP10 in Nagoya, Japan, last year “for answers, technical guidance and support that he could take back to his community so he and his family could cope with the impending changes to his livelihood”. Merritt and Dixon offer “effective and timely restoration”.
I’d like respectfully to suggest that perhaps a little support for genebanks from the trillion-dollar business of ecological restoration from seedbanks might do some good too.
Nibbles: FIGS, Anitmalarials, PhD, Pecans
- Australian magazine overdoses on FIGS (Focused Identification of Germplasm Strategy) h/t Dag.
- World Agroforestry Centre says malaria-cure trees are going extinct. World Malaria Day is on Monday 25th.
- New PhD programme on Biodiversity and Society. h/t CFTF, who say it covers diversification and neglected crops.
- China loves US pecans, giving Tom an opportunity for some strategic analysis.
Access to Arabic farming handbooks
The question of how farming originally spread across Europe continues to exercise scholars, although I reckon a fair conclusion today is that the farmers (and their crops and livestock) moved, rather than just their technology (and crops and livestock). At least, that’s true for pre-history. For more recent times, it is clear that knowledge travelled, and one way it did so was in a series of texts in Arabic known collectively as the Kutub al-Filāḥa or ‘Books of Husbandry’. This fantastic historical resource is now available online at the The Filāḥa Texts Project. Alas, there doesn’t seem to be a feed of any kind to tell me when new material is posted, but it is possible to join the project network. I have nothing to offer but my interest; I hope that’s enough.
And thanks to Rachel Laudan, where I learned of the project. She has already raised the fascinating possibility that light will in future be shed on how Arabic influences travelled from Spain to Mexico.
Stop Press: Razib Khan at Gene Expression explains how farmers conquered Eurasia between 10,000 and 5,000 years ago.
Refocus Afghanistan’s agriculture
We’ve occasionally, and perhaps too timidly, mentioned the futility of attempts to eradicate Papaver somniferum in Afghanistan. The crop is ideally suited to the terrain, and the product lucrative and in short supply globally. Also, illegal, at least in Afghanistan. But not in France, India or Australia. Over at Lawyers, Guns and Money, a group blog, Charli Carpenter makes a well-linked and well-argued case for reframing Afghanistan’s poppy problem (or, perhaps more accurately, the West’s problem with Afghanistan’s poppies) as an opportunity to improve global public health. One thing she doesn’t mention — and why would she? — is that poppies would probably be a lot more sustainable than most of the alternatives, needing less water and less land than, say, wheat or vegetables, and almost certainly displacing less local agricultural biodiversity.
h/t Sam Zeitlin