International Rice Research Institute;
DAPO Box 7777;
Metro Manila;
Philippines;
International Rice Research Institute;
DAPO Box 7777;
Metro Manila;
Philippines Hermitage Research Station;
Department of Primary Industries and Fish- eries;
Warwick 4370;
Queensland;
Australia;
International Rice Research Institute;
DAPO Box 7777;
Metro Manila;
Philippines Directorate of Rice Research;
Rajendranagar;
Hyderabad 500030 AP;
India;
International Rice Research Institute;
DAPO Box 7777;
Metro Manila;
Philippines Greenwood Genetic Center;
101 Gregor Mendel Circle;
Greenwood;
SC 29646;