Breeding of a new early indica rice variety,Zhangjiazhan with high quality

Hybridization between Jiahezhaozhan and Tefengai/duoxi 1 was conducted.From the F2 generations,a milling-brown breeding way was adopted continuously to select the good lines,finally new early variety(Zhangjiazhan) with high quality was developed.It showed high yield,strong resistance,high quality,good performance in ripe time and resistance to lodge.In the regional test of Fujian in 2002-2003,the average yield in two years was 2.86% higher than that of Jiahezhaozhan.