Study on Breeding Hongxiang Rice 823

In 2006, Hongxiang Rice 823 was successfully crossbred by consecutively selecting multiple generations with its female parent of Hongxiang Rice restores line SR33M and its male parent of self-fertile F02-80-1. The growth period of such combination lasted for 118-128 d with its spike length of 20 cm, around 160 grains of each spike, yielding rate of 90%, 1 000-grain weight of 23 g. The brown rice was crimson with fragrance. It has resistance to rice blast but moderate susceptibility to bacterial blight. The average yield of early rice and late rice was 5 290.5-7 657.5 kg/hm2. The coloration of its seed coat was around 20 days early than that of normal Hongxiang Rice. The brown rice had even bright color at harvest time, which dealt with the uneven color of Hongxiangmi during harvest time.