FAN, SHUGUO*, CHENGYE LIANG, AND HONGXIAN LIU. South China Institute of Botany, Academia Sinica, Guangzhou 510650, P. R. China. - Development of a new excellent cytoplasmic type of CMS line in rice (Oryza sativa L.).
A new excellent cytoplasmic type of cytoplasmic male sterile (CMS)
line S10-2A with typical abortion type (TAT) from Minghui 63 was
obtained by in vitro culture, which possesses high percentage of
exerted stigma, strong vitality of stigma, big opening angle of
spikelet, high flowering rate before noon and low percentage of
cleistogamous spikelet. The restoring and maintaining relationship of
S10-2A is completely different from that of WA type, HL type and BT
type which have been widely used in hybrid rice produciton.
Key words: callus induction, cytoplasmic male sterility (CMS), in vitro culture, Minghui 63, Oryza sativa L., plant regeneration