Some great photos of the Genetic Resources Centre Annual Field Day over on IRRI’s Flickr site. IRRI’s breeders are invited to visit the genebank’s seed multiplication plots every year, to see if anything grabs their eye. The chessboard effect is due to sowing early and late varieties in an alternating pattern. I’m assured the contrast “is becoming more pronounced each year as the supporting data improve.” See for yourself by comparing with previous years.