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Targeting germplasm in an age of climate change

Let me expand a little on yesterdays’s teaser about the Seedlot Selection Tool.

Say you have an accession of maize, for example, collected 20 years ago, for example, somewhere in the middle the NW zone of Mexico defined by Orozco-Ramírez, Perales & Hijmans (2017), for example.

Say that you’d like to know where you could grow that material 20 years from now.

Say you have a few minutes to learn how to use the USDA’s Seedlot Selection Tool.

This is what you would get, more or less, depending on the details.

The blue dot is your collecting site, the red bits are the places where that material will be adapted in 2040. And you can run the thing the other way around too. That is, given that you want to grow something in 2040 where that blue dot is now, where would you have to have collected it in the past?

The Seedlot Selection Tool seems to be aimed primarily at forest and landscape managers, but I see no reason why it couldn’t be used in agricultural applications too, as above, subject to the same provisos.

The Seedlot Selection Tool (SST) is a web-based mapping application designed to help natural resource managers match seedlots with planting sites based on climatic information. The SST can be used to map current climates or future climates based on selected climate change scenarios. It is tailored for matching seedlots and planting sites, but can be used by anyone interested in mapping climates defined by temperature and water availability. The SST is most valuable as a planning and educational tool because of the uncertainty associated with climate interpolation models and climate change projections. The SST allows the user to control many input parameters, and can be customized for the management practices, climate change assumptions, and risk tolerance of the user.

Would love to get my hands on a global version.

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Deconstructing restoration

Just to remind ourselves that conserved seeds are not just there to be used in breeding, let us “deconstruct symbolic promises of fertility and rebirth carried by domesticated seeds and look at the reality of the seeds that have never been at our service,” think as holistically as we can, and consider taking the MOOC on “Landscape Restoration for Sustainable Development: a Business Approach.” And, if we live in the western bit of North America, let us play around with the USDA’s Seedlot Selection Tool too.

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Vegetables, joy and justice

A long(ish) Edible Manhattan piece by Rachel Nuwer on the movement to breed crops for flavour, rather than only productivity or shelf-life, very nice in its own right, also gives me the excuse to link to Jeremy’s interview on Eat This Podcast with Lane Selman of the Culinary Breeding Network. Here’s Nuwer’s sign-off as an amuse-bouche. She first points out that production of the much un-loved kale has seen quite a jump lately in the US. Why not the Habanada pepper, the honeynut squash, or “a subtly flavored cucumber with a white rind”?

A similar renaissance could happen for these new ingredients, too — if only we demand it through our dining habits and grocery store purchases. As Swegarden points out, “Everything that happens upstream in the food system is dictated by the consumer.” Should a flavor-forward movement take hold, it has the possibility of changing the food system, including potentially creating more jobs for farmers and strengthening the shift toward local, seasonal and minimally-processed and -doused ingredients. Selman also anticipates that greater availability of delicious, affordable produce would translate into greater consumption of fruits, veggies and grains—and thus hopefully to a healthier general public. “I don’t do this because I want to hang out with high-end chefs,” she says. “It’s about joy and justice.”

Indeed it is.

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Assyria in Gatersleben

I’m not sure if I said here that I visited IPK, the German national genebank, a few weeks ago. I did on Instagram.

Complementary #conservation #genebank #agrobiodiversity #germany

A post shared by Luigi Guarino (@ggguarino) on

Great facilities, great people, great work: but, though bigger and better resourced than average, in most ways like many other genebanks around the world. Except, that is, for the Assyrian relief in the entrance hall.

Well, the plaster cast of the Assyrian relief anyway. Nobody seemed to know where the original was, but there was general agreement that the copy was there because it depicted plant breeding. Of course, I took that as a challenge, and after a few minutes playing around with Google’s image search feature, I ran it to earth at the Met.

Each register of imagery shows a pair of supernatural figures flanking a stylized “sacred tree.” Further sacred trees can be seen to the left, and similar imagery continued around the room from which this slab came. The tree is thought to represent the prosperity and agricultural abundance of Assyria, and perhaps on one level the state itself. The supernatural figures are protective, and similar to those shown at larger scale throughout the palace. The gesture performed by the bird-headed figures with bucket and cone has been much discussed. One suggestion is that it symbolizes the fertilization of the land through the imagery of artificial date-palm fertilization, in which male date-spathes are used to fertilize female plants. The Assyrian term for the cone, however, seems to be “purifier,” and it is therefore likely that the symbolism has as much or more to do with magical protection.

So, maybe plant breeding, maybe not, but well worth having in the entrance lobby to a plant breeding institute containing a genebank.

But in locating the stela I ran across an article on Mesopotamian agriculture from the Oriental Institute that mentioned something called the Philadelphia Onion Archive.

No way to let that go either, naturally. It turns out that the Philadelphia Onion Archive really does consist of an archive of material on onions, kept in Philadelphia in the unwieldy shape of numerous clay tablets inscribed in cuneiform in the Akkadian language. Fortunately, there’s a translation online. Which means we know how many types of onions were grown during the reign of King Shar-Kali-Sharri, over 4,000 years ago.

And for how many places around the world can we say that even now?