Brainfood: Asian American horticulture, Salt resistant Vigna, Rubber dandelion, Biofortifying wheat, US apple cores, Central European barley, Swedish peas, Alpine dairy, CAP crap, MVP

Afghan farmers pull off a poppy hat trick

A tweet caught my eye the other week.

Buffet

40 Chances is the title of a project (and book) by Howard G Buffett, who has taken some interesting approaches to agriculture for development as he spends some of his dad’s money.

I don’t follow 40 chances, but our pal Jacob does. Our conversation is self-explanatory, if a little curt, and although I’m grateful to Jacob for opening my eyes to the point Buffett seems to be making — that there might be several diverse alternatives to poppies — nothing to write here about.

Then, a week later, I see an article in Foreign Policy explaining that Afghanistan’s harvest of opium in 2013 was 49 percent up on 2012. “This is the third consecutive year of increasing cultivation,” according to Jean-Luc Lemahieu, outgoing director of the UN Office on Drugs and Crime, which reported some numbers earlier this week. And the area under cultivation is up 36%.

Ah, the conflicts. Production is up, per hectare, but that’s a bad thing? Because drugs are bad. But only if they’re grown in Afghanistan. Not if they’re grown in Didcot, England, or Tasmania, or France, or Turkey, or India …

I’ve belaboured the point often enough here. There are well-thought out schemes for legalising Afghanistan’s poppy production. And as an aside, the US helped Turkey to transition to legal opiate production by guaranteeing to buy a 80% of its legal opium from India and Turkey.

So, just noting here that in case saffron, pistachios etc don’t work out either, there are alternatives.

Brainfood: Mixtures and productivity, Pesticides and soil biota, Andean intensification, Turkish barley, Tomato size gene, Quinoa and environment, Banana improvement, Hybrid conservation, Allozymes

All you ever wanted to know about seed

A seed bank plans to store a barley seed lot as an active collection at 5°C. The initial viability is 99.5% and the collection has been dried to 10% moisture content. When will viability have fallen to the regeneration standard of 85%?

That comes from a little set of exercises that staff of Kew’s Millennium Seed Bank use on the training courses on seed handling and conservation that they frequently organize around the world. Time was when you had to slog through the maths to answer that question by hand. Want to try? Here’s the equation, go for it:

equation1

Nowadays, of course, there’s an app for that. Or at least a website, SID, Kew’s Seed Information Database. 1 Just click on Predict storage time, select Hordeum vulgare, enter storage temperature, equilibrium moisture content, initial viability and final viability, and click Calculate. Hopefully you got about 18 years. Easy, no?

Ok, smartypants, so now try this.

You are a forest extension officer working with communities in Burkina Faso to collect and plant Khaya senegalensis, a multipurpose tree species, with a seed oil content of 67%. Seeds are shed during the month of May at an eRH of around 50%. Average climatic conditions in the afternoon in May are 38°C and 40%RH. You use ambient drying during the afternoon to reduce eRH to 40% and then store seeds at ambient temperature (12 month average: 29°C) in large plastic drums. An initial germination test shows that viability is 99%. What will the viability be after 12 months storage under these conditions?