Humble crop beats superfood

Two articles about the contrasting fortunes of Andean crops came out last week. They describe different sides of the same broad story: Indigenous agricultural systems are highly biodiverse and increasingly positioned as climate adaptation strategies, but they are also under pressure.

In Peru, potato farmers in places like the Parque de la Papa are actively conserving thousands of native potato varieties as a form of insurance. This is climate change adaptation: maintaining agrobiodiversity, preserving traditional knowledge, and using resilient crop varieties and farming practices to buffer against warming temperatures, erratic rainfall, and pest and disease pressure. The message is that crop diversity itself is a survival strategy, both ecological and cultural.

The recent history of quinoa in Bolivia shows the same system under a different kind of stress: global demand drove a commodity boom that incentivized monoculture expansion and mechanization, which in turn contributed to soil degradation, erosion and reduced resilience. Coming back from that is proving difficult.

Together, the two cases show that when Indigenous agroecosystems are treated as living repositories of diversity, they can enhance resilience, including to climate change; and that when they are pulled into boom-driven export specialization, that resilience can be undermined. The shared lesson, at least for me, is that climate adaptation in mountain agriculture depends on maintaining ecological and genetic diversity embedded in Indigenous land management systems.

A point that I suspect is highlighted in the book Andean Potatoes and Quinoa: Origin, Current Status and Recipes of Ancestral Crops, also recently announced.

Brainfood: Spatial data edition

Nibbles: Pearl millet redux, Garden plants, Armenian pics, Seeds galore, Heavenly Book, Pastoralism threats

  1. Pearl millet is getting the hybrid treatment. And, loving it.
  2. Want to know what to grow in your garden? Yes, even pearl millet.
  3. Nice pics of Armenian landscapes, food and foodways. No pearl millet in sight.
  4. The latest monthly newsletter from The Botanist in the Kitchen does seeds. Pearl millet unavailable for comment.
  5. China is genotyping and phenotyping (almost) everything. Pearl millet feeling left out.
  6. If pearl millet fails, there is always pastoralism. No, wait…

Brainfood: Targets, Plant Treaty, Decolonization, Fonio germination, Recalcitrant seeds, Microbiome, Taro seed system

Beat the heat with seeds

I haven’t yet had a chance to read the full FAO–WMO joint report on Extreme heat and agriculture, but some preliminary skimming reveals that agrobiodiversity does seem to be addressed, at least to some extent:

No mention of genebanks, mind you. I guess you can’t have everything, but you’d have thought the following snippets could easily have been used to make the case very explicitly for ex situ conservation of crop diversity.

For domesticated agricultural species, human influence on the genome through selective breeding for enhanced performance in increasingly homogenous production environments has resulted in a loss of natural genetic variability that have accentuated many species vulnerability to temperature extremes.

It is only through innovation and the implementation of adaptative measures (e.g. selective breeding, making changes in the physical environment and altering management practices) that the global community can shelter agricultural activities from the larger forces of planetary human induced climate change.

Switching to more resilient species to extreme heat may result in reduced genetic diversity, increasing the vulnerability of crops and livestock to large-scale losses due to a narrower genetic base.