- Poverty doesn’t drive deforestation. Discuss using examples from Kenya and China.
- Crop Science Society of America (CSSA) position statement on “Crop Adaptation to Climate Change.” Genebanks mentioned. Crop wild relatives mentioned. Information systems mentioned. One’s cup runneth over.
National Geographic does genebanks
This is the beguiling paradox of seeds. They are, for all their obvious significance, so readily dismissible, especially by those of us in the well-fed world, who have forgotten where our food even comes from.
Let us hope this National Geographic article helps to change things.
Children plant breadfruit in Honduras
Breadfruit Project, a set by Sustainable Harvest International on Flickr.
Brainfood: Bean diversity, Rice domestication, Microbial interactions squared, Threat of extinction, Agroforestry, Species diversity
- Population structure and genetic differentiation among the USDA common bean (Phaseolus vulgaris L.) core collection. Subpopulations detected within usual Middle American and Andean genepools. The former was more diverse. Diversity was lower for domestication loci. One wonders whether game worth candle.
- Artificial selection for a green revolution gene during japonica rice domestication. There’s nothing new under the sun. Fuller fills us in.
- Positive plant microbial interactions in perennial ryegrass dairy pasture systems. Plant-microbe interactions can have significant positive impact on production of, and chemical inputs into and losses from, perennial ryegrass dairy pasture systems. Gotta love that agrobiodiversity.
- Plant growth promoting potential of Pontibacter niistensis in cowpea (Vigna unguiculata (L.) Walp.). And another one. New bacterium from Western Ghats fertilizes soil and helps cowpea to grow.
- Extinction risk and diversification are linked in a plant biodiversity hotspot. That would the Cape. Extinction threat (IUCN categories) is better explained by phylogeny than by human activity or plant traits. Go figure.
- The framework tree species approach to conserve medicinal trees in Uganda. Sort of like artificial keystone species. Lots of other cool stuff in the same issue of Agroforestry Systems.
- Use of topographic variability for assessing plant diversity in agricultural landscapes. By and large, more environmental variability means more plant diversity, in Switzerland. Maybe some crop wild relatives in there?
A rare coconut described
Coconut-hunter Roland Bourdeix does it again:
Here is the first description with pictures of one of the rarest coconut varieties from French Polynesia.
This is a Compact Red Dwarf, producing big round fruit of red-orange color; the young fruits show inside the husk a typical pink color, like the pink color found in the Pilipog Green Dwarf from the Philipinnes. This dwarf seems to be mainly allogamous. Its stem and leaves are quite similar to those of the Niu Leka Dwarf from Fiji.
This kind of dwarf will be very precious in the future, especially for production of hybrid seednuts. If you plant in geographical isolation this red dwarf mixed together with a green variety (dwarf or tall); then you will obtain seednuts s recognizable in the nursery. Seednuts with green sprouts will be the green variety, seednut with red sprouts will be the red dwarf, and seednuts with brown sprouts will be natural hybrids between the red dwarf and the green variety. Both conservation of the two varieties and production of hybrid seednuts are done in a single location. In this process, no need to make costly emasculation, because the red dwarf is allogamous. No need also to plant this seedgarden in a research institute: such a design can be easily managed by farmers in farmer’s fields, as geographical isolation is available.
So in the future, even in a small Pacific country, we could imagine 20 farmers producing locally 20 differents kinds of hybrids using their own varieties as male parents… This idea needs to be refined, but this could lead to a complete change in the policies of coconut seednut production at world level. An illustration of a quite similar process of seed production is given here for Samoa.
A question is about the genetic origin of this Compact Red Dwarf: is it a late progeny of Marechal hybrids? Or is it the progeny of a natural cross between Niu leka and a red dwarf such as Haari Papua? We will do soon some DNA analysis to study this point.