Promoting underutilized plants

Are you going to the international symposium on “Underutilized plants for food, nutrition, income and sustainable development” in Arusha, Tanzania on 3-7 March? John Sowei certainly is, all the way from Papua New Guinea, to talk about sago. My old friends from the Pacific Lois Englberger (her Let’s Go Local activities in Pohnpei have featured regularly in these pages) and Mary Taylor are also presenting papers. And I believe another old friend, Hannah Jaenicke, is already in Arusha, helping with the organization. John, Lois, Mary, Hannah — or anyone else: do let us know if you’d like to blog the event for us.

Talking about health and biodiversity

The 2nd International Conference on Health and Biodiversity will kick off next week in sunny Galway, Ireland. As ever, if you’re going to be there, and would like to tell the world about it, you’re more than welcome to use these pages to do so. Meanwhile, in Maccarese, Bioversity International has a space on its website for discussion on how biodiversity can be used to fight hunger and malnutrition: have your say!

Why organic tomatoes are good for you

I’ve been meaning to blog this for almost a month. R. Ford Denison (a name to reckon with) blogged about some of his own research that summarizes 10 years of research into the flavonoid content of tomatoes grown conventionally and organically. Bottom line is that the organic tomatoes contained almost double the flavonoids of conventionals. I’m not going to go into whether that’s a good thing or not. Instead, I’ll stress the point that Denison himself makes, about Darwinian agriculture.

Why do the organic tomatoes contain more flavonoids? Maybe because flavonoids play a part in combatting herbivory. And they are often produced in response to pest attacks, rather than all the time. So one reason that organic tomatoes contain more of these compounds — which are believed to be good for human health — is precisely because on an organic farm there are a few pests that attack the plants. No pests, no need for defense, no benefits for human health.

This is just one aspect of what Denison calls Darwinian agriculture, a fascinating approach to the whole question of just what is being selected. There is, as someone else wrote, grandeur in this view of life …