The six basic experiments over three crops contributed to the selection of 4 GSR65, GSR90, GSR38, Nam Uu 1245 rice varieties with high-productivity, good-quality, good agrobiological features, short growth time (A1), low pest infestation for production experiment and construction of demonstration model in farming field in Phu Yen province. | Selection of green super rice GSR with high yield good qualities and adaptation to climate condition in Phu Yen province Part one