- International Seed Federation secretary-general in podcast on seeds and the SDGs.
- Country nutrition profiles. Sobering.
- Share your plant stories on Herbaria 3.0.
- The secret history of the cowpea, from a chef: “Our peas were tiny little texts, and we didn’t even know it.”
- Speaking of chefs…
- More on that 4000-year-old baking yeast story.
- The economics of rotations.
- The economics of blue maize.
- Mapping the evidence base for the link between forests and poverty alleviation.
- Speaking of maps, here’s how food moves around the USA.
Rethinking reforestation
One of the reforestation papers we blogged about a few months back is coming in for some criticism.
In the original study, ecologist Thomas Crowther of the Swiss Institute of Technology in Zurich and his colleagues first used a machine learning algorithm to predict where additional trees could naturally grow, based on climatic conditions under which existing forests are known to exist. Then, his team used a handful of published estimates on the carbon stored in existing forests to estimate how much carbon those additional trees could lock in once they reach maturity. After taking into account the carbon that would be trapped in the soil, leaf litter, and dead wood associated with the trees, they arrived at their 205 gigaton estimate.
That’s a trillion trees on almost a billion hectares. Just google those figures to get an idea of the impact the paper had.
Anyway, now researchers are finding holes in the methodology. My reliably pernickety friend Eike Luedeling is objecting to the figure used to convert canopy cover to amount of carbon sequestered, and to how the availability of land for reforestation was estimated. Others are suggesting that the effect of new forests on the surface albedo should have been factored in. But perhaps the main objection is higher-level.
Several groups of scientists took particular issue with the paper’s original statement that global tree restoration is “our most effective climate change solution to date,” an assertion one of the critics called “dangerously misleading” as it implies trees are the unique solution to climate change. Land, and how we use it, can be a big part of the solution to climate change, as outlined highlighted in a recent report by the Intergovernmental Panel on Climate Change. But those strategies only “buy us time” while people cut greenhouse gas emissions, which is arguably the most powerful climate change mitigation strategy, says Luedeling.
Needless to say, the authors are countering vigorously. You can read all the toing and froing in The Scientist.
Brainfood: Diversification, Wheat genomics, Historical tom, Crop mapping, African crops & CC, Trans CWR, Fish nutrition, Seed storage, Indian rice, Food Neighbourhoods, Diet sustainability, Onion evaluation, Aussie wild rice, Rice evaluation
- To diversify or not to diversify, that is the question. Pursuing agricultural development for smallholder farmers in marginal areas of Ghana. Diversify.
- Improving grain yield, stress resilience and quality of bread wheat using large-scale genomics. A genotype –> phenotype map at last. I guess that means breeders are superfluous.
- The earliest recorded tomato in Britain, in Wales. In 1590, no less.
- Biotechnology of the sweetpotato: ensuring global food and nutrition security in the face of climate change. A whole special issue. Our troubles are over.
- Probabilistic global maps of crop-specific areas from 1961 to 2014. A new, different, cooler algorithm provides somewhat different results to older, less cool algorithms.
- Potential adaptive strategies for 29 sub-Saharan crops under future climate change. Climatic conditions not currently experienced by these crops will spread, but CWRs and diversity from outside Africa might help.
- Trans Situ Conservation of Crop Wild Relatives. Just means properly integrated in and ex situ.
- Criar y Dejarse Criar: Trans-Situ Crop Conservation and Indigenous Landscape Management through a Network of Global Food Neighborhoods. See what it means? Scaling up the Parque de la Papa.
- Harnessing global fisheries to tackle micronutrient deficiencies. Small fish from the tropics could be really good for nutrition in some countries. Namibia, I’m looking at you.
- Artificial seed aging reveals the invisible fraction: Implications for evolution experiments using the resurrection approach. Store your seeds properly.
- Status of Rice (Oryza sativa L.) Genepool Collected from Western Ghats Region of India: Gap Analysis and Diversity Distribution Mapping using GIS Tools. Out of 678 rice landraces from this region, 43 have been used in crop improvement.
- Advancing an Integrative Framework to Evaluate Sustainability in National Dietary Guidelines. In 32 sub-dimensions, no less. Important.
- Assembly and characterisation of a unique onion diversity set identifies resistance to Fusarium basal rot and improved seedling vigour. Group according to local daylength.
- Australian wild rice populations: a key resource for global food security. Because they’ve been isolated from the crop.
- Novel method for evaluation of anaerobic germination in rice and its application to diverse genetic collections. No word on whether it’s applicable to Aussie wild species, but I bet it is.
Brainfood: Tea diversity, Sorghum CWR, Wine certification, Salty maize, Broadening cacao, Wild emmer evolution, Wheat breeding, Nutrition info, Indian rice, Dietary diversity treble, Potato enhancement
- Assessment of Genetic Diversity of Tea Germplasm for Its Management and Sustainable Use in Korea Genebank. There’s not enough.
- Crop wild relatives as a genetic resource for generating low-cyanide, drought-tolerant Sorghum. From Australia, of all places.
- Consumers’ preferences for biodiversity in vineyards: a choice experiment on wine. Even buyers of cheap plonk are willing to pay for biodiversity.
- Characterization of natural genetic variation identifies multiple genes involved in salt tolerance in maize. 8 of them, at least.
- Extending the cacao (Theobroma cacao L.) gene pool with underrepresented genotypes: growth and yield traits. Lots of potential for broadening the base of the crop in West Africa.
- Elevated mutation and selection in wild emmer wheat in response to 28 years of global warming. Evolution continues, but not necessarily in a good way.
- Genetic Gains in Wheat Breeding and Its Role in Feeding the World. Focusing on ICARDA and CIMMYT. How much would have been possible without the genebanks?
- Agriculture–nutrition linkages in farmers’ communication networks. You can spread nutrition information through existing agricultural extension channels, but you have to be gender sensitive and some people may be excluded. Twas ever thus.
- Population genetics analyses of North-East Indian indigenous rice landraces revealed divergent history and alternate origin of aroma in aus group. A real melting pot.
- Review: Meta-analysis of the association between production diversity, diets, and nutrition in smallholder farm households. Increasing production diversity won’t always lead to improved diets. But it could.
- Farm-Level Agricultural Biodiversity in the Peruvian Andes Is Associated with Greater Odds of Women Achieving a Minimally Diverse and Micronutrient Adequate Diet. Like here for instance.
- Farm-Level Agricultural Biodiversity Is Not the Principal Contributor to Diverse and Micronutrient-Rich Diets, nor to Overall Food Consumption in Smallholder Farm Households. Or maybe not.
- Potato Germplasm Enhancement Enters the Genomics Era. About time? Or jumping the gun?
Brainfood: Old seeds, Anthropocene, Apple polyphenols, Maize adaptation, Maize adoption, Biodiversity designs, Early millet, Asian populations, Japanese catalogue, Legacy data, PVP, Synthetic wheat double
- Unlocking the secrets of extreme seed longevity: the relevance of historic botanical collections to modern research. Claims that very old seeds are still alive are probably exaggerated. Except from genebanks, of course.
- Archaeological assessment reveals Earth’s early transformation through land use. We had transformed the world globally by 3000 years ago.
- Genome-wide association studies in apple reveal loci of large effect controlling apple polyphenols. It should be surprisingly easy to breed really healthy apples. No word on adaptation.
- Identifying loci with breeding potential across temperate and tropical adaptation via EigenGWAS and EnvGWAS. 13 genomic regions under ecological selection in maize. No word on nutrition.
- The maize frontier in rural South India: Exploring the everyday dynamics of the contemporary food regime. Adoption is being driven both top-down and bottom-up.
- Simple study designs in ecology produce inaccurate estimates of biodiversity responses. Complexity in experimental design is worth it.
- Early integration of pastoralism and millet cultivation in Bronze Age Eurasia. In southeastern Kazakhstan, ca 2700 BC, mobile pastoralists winter foddered their sheep and goat with the region’s earliest cultivated millet, which came from China.
- The formation of human populations in South and Central Asia. People and crops moved together, both east and west. Oh, and are the above the Yanmaya?
- Lost Grains and Forgotten Vegetables from Japan: the Seikei Zusetsu Agricultural Catalog (1793–1804). Fewer than half of the 109 species illustrated are still grown in Japan.
- Soil legacy data rescue via GlobalSoilMap and other international and national initiatives. Should do the same with genebank data too.
- Insights into deployment of DNA markers in plant variety protection and registration. Will increasingly be used in support of DUS, apparently.
- Genetic Contribution of Synthetic Hexaploid Wheat to CIMMYT’s Spring Bread Wheat Breeding Germplasm. 20% of the lines in international yield trials were synthetic-derived with an average genetic contribution from the D genome wild relative of 15.6%.
- Genetic diversity and population structure analysis of synthetic and bread wheat accessions in Western Siberia. The Japanese synthetics are something else.