Category: Breeding

Posted on

Farmer Field Schools in the Pacific and beyond

Danny Hunter has sent us this contribution. Until recently, Danny ran the TaroGen and DSAP projects at the Secretariat of the Pacific Community in Fiji. Thanks, Danny.

An interesting article from SciDevNet about farmer empowerment through Farmer Field Schools (FFS) reminded me of a great little programme that we had running in Samoa in the late nineties.  Farmer Field Schools began as a training and extension approach for integrated pest management of rice, largely supported by FAO in Asia. Since then FFS have been used for a variety of agricultural crops, systems and problems, including livestock, and have spread to other regions of the world.

The article prompted me to reflect on earlier efforts that we made at the Alafua Campus of the University of the South Pacific in Samoa, using similar “field-based” approaches to help students and farmers (as well as researchers and extensionists!) learn about taro diversity and improvement. In 1993 Samoa was devastated by an outbreak of taro leaf blight. Initial responses using pesticides and cultural methods were futile and while introduced “resistant” varieties helped, the disease was still a major problem.

Continue reading “Farmer Field Schools in the Pacific and beyond”

Posted on

Rescuing the American chestnut

You know, these Nibbles (the short, soundbite-type things which appear at the top of the right sidebar of this page) are fun to do, but sometimes you end up downplaying, or over-simplifying, an important, interesting — and interestingly complex — story. Take what I said about the American chestnut a few days ago. The recent history of Castanea dentata is proud and tragic ((Looking further back, it also played an important role in native America agroforestry.)), and efforts to bring it back from the brink of annihilation well-nigh heroic. To imply, as I did, that these efforts were confined to hybridizing the American with the Chinese chestnut was justified only by the necessity for extreme brevity. In fact, of course, it is not just hybridization but repeated back-crossing. And not just interspecific crossing but also painstaking crossing among the few remaining pure American chestnuts, as reported in the article that prompted me to revisit the original story and hopefully make amends for my earlier flippancy.

Posted on

The geography of rice

316 1866 F1

Robert Hijmans has a great new global map of rice cultivation out. Robert is at IRRI now, hence his current preoccupation with rice, but he’s done the same thing for several other crops, and of course there are his cool cartograms too. I guess it is his map that underlies the figures of the potential impact of climate change.

Of course, this is a snapshot. How cultivation of a crop changes over time is difficult to capture in a single image, but there’s a map which does a pretty good job for maize.