Corn thoughts

The idea that maize and man co-opted one another in pursuit of world domination is not as new as some people seem to think. I’m reading “Corn and Capitalism: How a Botanical Bastard Grew to Global Dominance” by Arturo Warman, translated by Nancy Westrate. The original Spanish edition dates to 1988 and the translation to 2003, and although some bits have undoubtedly been updated the one over-riding impression I have so far is that all indicators of corn’s global dominance are probably now even greater than they are in the book. But that’s not why I am blogging.

Rather, I am puzzled by a reference on page 7 to a crop of American origin called sesame. That brought me up short. Sesame, Sesamum indicum, is almost certainly Indian in origin. Fortunately, Warman, or Westrate, gives a Latin name, Amaranthus cruentus, and says that it is known as Alegria, or “joy”. That makes more sense. A. cruentus is one of the three amaranth species grown for its grain, which admittedly does look a little like sesame seed. And it is the one often known in English as red amaranth, for the flower (and flour?) colour of a group of varieties that was, apparently, used as an element of ritual throughout the Americas. It represented blood, and that may have been the reason colonial religious nuts attempted to ban its cultivation and use. 1

Is there, then, some reason why Warman and Westrate refer to it as sesame? A Spanish word, perhaps?

All this is especially interesting in view of later paragraphs dedicated to the original domestication site of corn, Old World or New. 2 Part of the evidence that scholars adduced in support of an Old World origin was linguistic, names such as Egyptian sorghum, Syrian grain, grain from Mecca, Indian wheat, Spanish wheat, Portuguese grain and, here in Italy, Gran Turco. What all of these have in common is the notion that maize comes from somewhere else, often self-contradictory, but that was enough to send Old World supporters into a frenzy. They simply could not bring themselves to believe that such a wonderful plant had been domesticated by the lowly creatures of the Americas.

And speaking of names, it came as another shock to learn that Teosinte, the ancestor of maize, gets its name from a Nahuatl word for “corn of the gods”. How many other foods of the gods are there, I wonder?

A citrus species in need of research?

It seems that citrus canker, a nasty bacterial disease, has been officially eradicated in Australia. Good news, but there is a bit of a dark lining. Along with 495,000 commercial citrus trees and 4000 residential trees, the eradication programme has included destroying a lot of trees of native Citrus glauca in the affected area. Desert Lime is well-known bush tucker, as well as a potential resource for Citrus breeding. It’s not currently considered endangered, but there’s not really all that much research about it 3, so that might be optimistic. There are only 8 germplasm accessions worldwide (page 29), apparently. That sounds inadequate to me. Especially given the historic proportions of the current drought, which is affecting the whole of SE Australia, including areas of C. glauca.

LATER: See also a map of the latest spate of bushfires in Australia. A threat to this and other crop wild relatives?

The perils of diversification

Alex Tiller forecasts a price spike in the cost of salads and melons in the US this summer as a result of a drought in California’s Central Valley. Farmers are abandoning those crops to save water for even more valuable crops, like almonds. Tiller suggests that

The coming cost spikes in lettuce and melon may provide incentives for growers outside the “melon belt” to invest in the production of these popular fruit and vegetable crops.

Right. But unless those farmers can fashion some kind of new deal with their buyers they’ll be able to kiss goodbye to their investment and their income just as soon as California gets another normally wet season, which it will, soon enough. Prices will plummet, and the buyers will abandon (more) local suppliers to save a couple of cents. You mark my words.

New Scientist bottles it

I have a lot of respect for the New Scientist. I really do. I kind of grew up with it. But I don’t think it handled the Great Seed Bank Confusion very well. Let me remind you. Last week a blog post went up at Short Sharp Science confusing the Millennium Seed Bank at Kew with the Svalbard Global Seed Vault, which is demonstrably not at Kew. Here’s a screen grab of that original post (click to enlarge):
ns
That was bad enough, as both places have been in the news a lot lately, and it elicited the predictable flood of comments 4 — some unpardonably rude, it must be admitted 5 — setting the blogger right. But it was nearly a week before the post was corrected, thusly:
after
And, rather than being up-front, the apology for the mistake, and the notice that a correction has been made, is buried in the 18th comment.

Journalists often bitch and moan about bloggers not being sufficiently professional about checking sources etc etc. I think New Scientist was unprofessional in making the original mistake — but hey, that happens — but also, and unforgivably, in not owning up to it quickly and visibly enough. Anyway, at least now everyone knows the difference between Kew and Svalbard.