| Promising line IR77954-28-36-3 was first developed at the International Rice Research Institute in 1998. Selection and backcrossing were conducted at Ubon Ratchathani Rice Research Center during 1999-2004. Evaluation for yield potential and environmental adaptation was carried out in the upper northern region during 2005-2012. Results from experimental fields in research centers showed that this line gave average grain yield of 12-22% higher than KDML105, flowering date ranging from 11-24 October, 107-172 centimeter height, resistance to blast disease, good response to nitrogen fertilizer, and cooking quality similar to KDML105. The line IR77954-28-36-3 was adopted by farmers and consumers according to preference analysis by farmer participatory rice... |
