Nibbles: Diversification, Street food, Forest genetic units, Citrus greening, COP22 roundup, Australian breeding, Temperate Orchard Society, Quinoa conference

Brainfood: Pre-breeding, Wheat in Ethiopia, CAP & minor crops, IITA germplasm management, Cassava improvement, B73 maize inbred, Livestock uses, Range expansion, Sustainability standards, Soybean origins, Popping sorghum

Nibbles: Cryoconservation, Barley history, Beer in UNESCO, Future crops, Pacific crops, Ag & biodiversity, Sequencing NUS, Market education, Mauritanian camels

Why mixtures do well

I bring you a nice photo, and even nicer quote, from Salvatore Ceccarelli’s Facebook page today. Salvatore has blogged for us in the past about his work on variety mixtures.

In 2008, at ICARDA, we dusted off the old idea of evolutionary breeding to bring biodiversity back into farming systems. We made large, widely diverse populations of barley, bread wheat and durum wheat by mixing lots of F2 lines. And I mean lots: 1600 in the case of barley, 2000 in the case of bread wheat and 700 for durum wheat. The populations went to different countries, including Jordan, Algeria, Eritrea, Iran, and lately even Italy. In Ethiopia, a specific population was made based more specifically on Ethiopian germplasm.

A few days ago Salvatore was examining this particular mixture of 217 durum wheats on a farm at Geregera, in the region of Gonder, Ethiopia.

ethiopia

The farmer responsible for the mixture is the one at the extreme right of the photo (the guy talking, just to his left, is the student who sowed the experiment). This is how the farmer described what’s going on in his field.

In a mixture, plants are jealous of one another and try to be better than their neighbours, and the result is that the whole field is better.

And you can see what he means, although unfortunately it doesn’t seem to apply to humans.

Re-establishing ICARDA’s genebank

One of the reasons I’ve been a bit behind with my blogging in the past month or so is that I’ve been doing a lot of travelling. It shouldn’t matter, you can blog from any hotel room with a half decent wifi connection of course, but the reality is that it can be difficult to find the time, not to mention the energy.

Anyway, just to prove that I was doing some work, here’s some evidence from my visit to the new ICARDA genebank in Morocco. You’ll remember that the collection that used to be just outside Aleppo in Syria is now being re-established in Terbol, Lebanon and Rabat, Morocco with material that was retrieved from the Svalbard Global Seed Vault in late 2015. Earlier this year, we published a shot of the first set of seeds from Svalbard growing in the field at the ICARDA research station in Merchouch, Morocco.

regen

Here’s the second lot ready for planting, guarded by Ahmed Armi, head of the ICARDA Genetic Resources Section.

ahmed

Here is the field being prepared, and the packets of seeds ready for planting.

planting

And here, finally, are Ahmed’s staff actually putting the seed into the ground for multiplication. They did about 4,000 cereal accessions in a couple of days the week before last.

In a few months, rain willing, the field will look like it did above, last February, and the whole thing can be repeated again. A genebank’s work never ends.