Breeding and Utilization of Good Quality and Early Cropping Indica CMS Line H28A

H28A is a new WA-type early cropping indica CMS line in rice, which is developed by crossing Jin 23A to a selected F 3 plant of Yue 4B/Fuyi B∥316B through successive selection and backcrossing. It is characteristic of stable and complete male sterility, good plant type, early maturity, good flowering habits, high stigma exsertion rate and outcrossing rate, relatively good grain quality and good combining ability. In February, 2004, it was certified by Hunan Crop Variety Release Committee. Its F 1 hybrids show high and stable yield, good grain quality and wide adaptability. Among them, H28A/R207 was certified in Guangxi in February, 2004; H28A/91-13 was evaluated and ranked as a third class fine quality rice variety in Hunan Province in 2002.