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Brainfood: Tomato chemicals, Photoperiod, Grain phenotyping, Hawaiian ag, Domestication primer, Symbionts, Turkish wheat, Yam bean diversity, Crop health, Walnut diversity, Agrobiodiversity theorising, Sea pigs, NERICA impacts, Nutrient production

Mapping wheat diversity in Turkey

ResearchBlogging.orgNo sooner did I blog about a paper which mapped diversity in a crop in Mexico across time, that I came across one mapping diversity in another crop in Turkey. ((Morgounov, A., Keser, M., Kan, M., Küçükçongar, M., Özdemir, F., Gummadov, N., Muminjanov, H., Zuev, E., & Qualset, C. (2016). Wheat Landraces Currently Grown in Turkey: Distribution, Diversity, and Use Crop Science, 56 (6) DOI: 10.2135/cropsci2016.03.0192))

The authors — a truly international bunch from the Bahri Dagdas International Agricultural Research Institute, the Vavilov Institute, CIMMYT, ICARDA, FAO, and UC Davis — describe a huge effort to collect and describe wheat from all over the country during 2009-2014. They then compare the resulting socioeconomic and geographic patterns of diversity with a previous survey done by the Vavilov Institute in the 1920s, the results of which were published in 1935-9 by Mirza Gökgöl, a Turkish scientist who accompanied that expedition. ((Gökgöl, M. 1935. Turkish wheats, Vol. I. Ministry of Agriculture, Yesilkoy Seed Breeding Institute Publications No. 7, Devlet Press, Istanbul, Turkey (In Turkish).
Gökgöl, M. 1939. Turkish wheats, Vol. II. Ministry of Agriculture, Yesilkoy Seed Breeding Institute Publications No. 14, Tan Press, Istanbul, Turkey (In Turkish).))

As in the Mexican maize study, diversity in the crop was measured in terms of distinct morphological types, and was unevenly distributed around the country, but unlike in that work, diversity was calculated for each administrative province, rather than in each square in a grid. As provinces vary widely in size, and in the extent to which wheat is grown in them, this approach is not ideal.

Nevertheless, it was possible to make direct comparisons between the two study periods for about 17 provinces. Discounting some very rare and very minor morphological variants, it seems fairly safe to say that for these provinces, the number of distinct wheat types went down about 59% overall, though with large differences among provinces. There is no map showing this in the paper, but, thanks to my colleague Nora Castañeda, I can help you with that. Red is down, green is up.

Data from Morgounov et al. (2016) Table 4. Wheat landrace diversity for selected provinces in Turkey found in the 1920s compared with the current results (2000s).

What explains wheat landraces still thriving in some places, and not in others?

Socioeconomic data indicated that landrace farmers are found mostly in remote mountainous subsistence communities with very little grain trade, small areas planted to wheat, and relatively simple production technologies. The key reasons famers continue to grow landraces are their grain qualities and adaptation to abiotic stresses.

Nibbles: Celebrity chef, Brazilian meeting & dessert, Citizen experiment, Phenotyping course, Fonio, Milpa, Broccoli nutrients, Biodiversity $$, Soybean history

  • Alexis Soyer was apparently the first celebrity chef.
  • EMBRAPA gets to grips with crop wild relatives, with a little help from their friends.
  • Did they serve brigaidero, though?
  • Take part in a crowd-sourced experiment on plant adaptation.
  • And then go and find out how the experts do it.
  • Will fonio‘s day ever come?
  • Celebrating the milpa.
  • Gotta eat your broccoli fresh for the full nutrient monty.
  • Putting (yet another) value on biodiversity. This one by adding or subtracting a species to a grassland plot and seeing what happens to C sequestration.
  • What price soybeans?

Brainfood: Slow Food, Runner bean diversity, Bamboo diversity, Istrian grapes, Smelly cheeses, Wild pseudocereals, Diversity & phenology, VAM diversity, Oases apocalypse, Wild wheat physiology, PepperHub, Bactrian camel diversity, Swiss livestock, CWR conservation, Tree database