Affiliation: | 1.Philippine Rice Research Institute, Maligaya, Science City of Mu?oz, 3119, Nueva Ecija, Philippines ;2.Rothamsted Research, Hertfordshire, Harpenden, AL5 2JQ, UK ;3.Swedish University of Agricultural Sciences, P.O. Box 7026, 750 07, Uppsala, Sweden ;4.International Rice Research Institute, Los Ba?os, 4031, Laguna, Philippines ; |