Organic farming: what is it good for?

Organic produce and meat typically is no better for you than conventional food when it comes to vitamin and nutrient content, although it does generally reduce exposure to pesticides and antibiotic-resistant bacteria, according to a US study.

Organic farming is generally good for wildlife but does not necessarily have lower overall environmental impacts than conventional farming, a new analysis led by Oxford University scientists has shown.

Time for a meta-meta-analysis?

When is a plantain not a plantain?

Corner a Musa-wallah over a pint of sorghum brew, and ask them to tell you the difference between a banana and a plantain. Seven will get you eleven you’ll be no wiser when they eventually finish frothing. So turn instead to the CGIAR Research Program on Roots, Tubers and Banana’s Facebook page, for true enlightenment.

Yesterday, you see, was Plantain Tuesday. So what do we learn?

That’s right! 1 “There is in fact no formal, botanical distinction between plantains and bananas; the only difference is in how they are eaten”. So stick that in your cooking bananas, Dr Musa-wallah.

And there’s more.

“Plantains originated in southeast Asia and were cultivated in south India by 500 BC”. Triffic. What about bananas, then?

Hang on, though, I know what you’re thinking. Those two pictures don’t look much like any bananas you’ve ever seen. And you would be right about that. But hey, it’s only Facebook. Who cares whether the information is accurate?

OFSP steal the show

OFSP conspicuous by their absence in a Nairobi supermarket.
I said yesterday that orange-fleshed sweet potatoes (OFSP) were all the rage in early August, and I wanted today to provide the evidence. HarvestPlus mounted a well-coordinated and extremely effective media blitz. In addition to regular posts on Facebook and Twitter, there was a press release, an infographic and a brief. This all really paid off in terms of coverage. In particular, hardly a piece on the Global Hunger Event organized by the UK Prime Minister David Cameron to cement the legacy of the Olympics failed to mention OFSP. I don’t begrudge them this: OFSP are important .

The wife tucks into an OFSP grown by her mother.
But mostly missing among all the hoopla, alas, was any reference to the diversity of sweet potatoes available in the world’s genebanks, including as regards colour and nutrient content. And the possible effect of introducing these new varieties on the old ones still in farmers’ fields, and perhaps not yet safeguarded in said genebanks.

Urban agriculture gets its 15 minutes

The World Urban Forum is taking place down in my home town this week. That I suppose was what provided at least part of the impetus for the United Nations Standing Committee on Nutrition (UNSCN) to issue a statement on the Nutrition Security of Urban Populations. Not to be outdone, FAO has a publication out too, Growing Greener Cities in Africa, touted as the “first status report on urban and peri-urban horticulture in Africa.” A cursory glance doesn’t reveal much on diversity in these documents, but this is an issue that’s always intrigued me. Could cities act as magnets for crop inter- and intraspecific diversity? After all, they have lots of micro-niches, and have been attracting people from all over for decades, who could have come with their seeds. Is it possible that varieties could still be grown in cities after they’ve disappeared in their native areas? Or at any rate that crop diversity in a city is higher than in the surrounding countryside? Sometime ago we did a small survey of sweet potato diversity in Nairobi roadside verges that seemed to suggest that the menu of varieties was at least somewhat different from what was available in nearby rural areas. Should write that up one day. Anybody know of similar studies?

Cheers

I can’t believe I forgot to include news of the President’s homebrew in the list of my favourite agrobiodiversity stories of the past few weeks. I suppose it was all done by the Obama campaign as part of a complicated social media strategy to deflect attention from the Republican convention, but I don’t care. I like that the hop varieties involved, Kent Goldings and Fuggles, have venerable, and not uninteresting, histories.