Published August 20, 2015 at 350 × 422 in I used to be uncertain, but now I’m not so sure (updated 5 December 2015) Fiona Hay Dr Fiona Hay, IRRI Share this: Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on WhatsApp (Opens in new window) WhatsApp Share on LinkedIn (Opens in new window) LinkedIn Like Loading... Next →