- Mead, part 4. You can find 1-3 yourselves.
- Plant genetic resources key to food security. The Jakarta Post gets it.
- Long, complex post from ILRI on zoonoses; diseases that infect people and animals.
- What are all the flowers for? The Provincial Agricultural Chamber of East Flanders seeks answers. h/t PAR.
- Wanna do a post-doc on Comprehensive modelling of agro-biodiversity in relation to seed exchange networks?
- Sacred groves threatened, by Times of India.
- Fabulous botanical posters, many featuring useful species, and all useful information. Of course tomatoes are fruits.
- I meant to write in detail about how Untapped crop data from Africa predicts corn peril if temperatures rise, but you know, life intervened.
Diversifying Crops May Protect Yields in the Face of a More Variable Climate
That’s the headline on a note from the American Institute of Biological Sciences, which publishes the excellent BioScience. Resilience in Agriculture through Crop Diversification: Adaptive Management for Environmental Change, a review by Brenda Lin of the CSIRO in Australia, pulls together lots of studies ((Though by no means all …)) from lots of places and lots of species (and varieties) to come to the conclusion that, yes, indeed,
Understanding the potential of increasing diversity within farm systems is essential to helping farmers adapt to greater climate variability of the future. By adopting farm systems that promote ecosystem services for pest and disease control and resilience to climate change variability, farmers are less at risk to production loss and are more generally resilient to environmental change.
Thanks Eve.
Radicchio diversity
Following in Luigi’s footsteps, the botanic gardens at Padua beckoned. The oldest botanic gardens in the Old World (Wikipedia is wrong; the New has older) they have operated continuously in the same place since 1545. A freezing February day was not ideal to see plants, and precious few of the labels denoted anything directly edible as food. I was not, however, entirely disappointed, for in a sunny bed in the lee of a building was a display of perhaps the region’s most famous crop: radicchio.
The picture above shows an old local variety, Variegato di Castelfranco, and Otello, a modern cultivar. Which, naturally, sent me scurrying to discover more about their history and breeding. There isn’t, actually, a huge amount. One study, of which I’ve seen only the abstract, examined DNA diversity of the five major types. Turns out that if you compare pooled bulk DNA from six individuals of each type, the different types are easy to distinguish. If, on the other hand, you look at DNA from individuals, the distinctions disappear. The variation within a single type is much greater than the variation among the different types. This, the researchers say, indicates that the types have maintained their “well-separated gene pools” over the years. An earlier paper (available in full) had come to a similar conclusion about the populations, with what seems like an ulterior motive: ((Although they were also concerned to enable breeders “to select inbred lines suitable for the production of commercial F1 hybrids”.))
The molecular information acquired, along with morphological and phenological descriptors, will be useful for the certification of typical local products of radicchio and for the recognition of a protected geographic indication (IGP) mark.
And lo, it came to pass. Four types (I think early and late Rosso di Trevisos are included in one designation) got their Protected Geographical Indication in 2008 and 2009. That’s late — tardivo — in the photograph below.
Nibbles: Flora, Agronomy podcasts, Stats, GFAR, Horses, Lettuce, Churst forests, Brazil nut, Grassland diversity, Baobab, Flotation, Botanic gardens and invasives, Nutrigenomics
- Picture guide to West African plants. Includes agrobiodiversity!
- Iowa State Agronomy podcasts. Some cool stuff. Check out the one on “Modeling Seed Germination Over Time to Decide When to Regenerate Seed Lots in Long-term Storage.”
- A “formal global program to develop subnational agricultural land-use statistics“? Riiiiight.
- GFAR meeting on sustainable use of agrobiodiversity says “[w]e need to initiate solid and inclusive actions to build concerted and practical actions on sustainable use.” Well they do say actions speak louder than words.
- Researcher “trying to remove the perception that hackneys are ‘half-crazed.'” I’d rather pay to save them if they were crazy, but that’s me.
- Romaine: germplasm to breeding lines. But to cultivars? Private sector to pick up the slack.
- Crops not mentioned among species that save our lives.
- Saving sacred groves in Ethiopia. By building pit latrines. Well why not?
- Brazil nut spread by people.
- A trade-off between species and genetic diversity? Say it
ain’t so! - Today’s iconic species threatened by climate change is the baobab.
- An Egyptian archaeobotanical blog.
- Botanic gardens can threaten biodiversity.
- Nature has (or had, it’s a couple months old) a supplement on nutrigenomics.
Earth Microbiome Project sets an example
Is there any good reason why we should not do this with agrobiodiversity, starting with crops and their wild relatives? In fact, is there any good reason why we have not done it already?