“广余73”是我室用杂交方法育成的中熟晚籼新品种。经省教育厅1983年9月26-27日组织评审,已通过鉴定。 1.选育经过。“广余73”是1970年用“广华4号”作母本,“余晚6号”作父本杂交,经南繁北育、7代培选于1974年春在海南岛定型育成。1974年晚季参加院内品比试验,6月23日播种,7 “Kwong Yu 73” is a medium-maturing late indica variety cultivated in our lab by hybridization method. The provincial Education Department September 1983 September 26-27 organization review, has passed the appraisal. 1. After breeding. “Kwong Yu 73” was the mother of “Kwong Wah No.4” in 1970 and “Parental Hybrid of No.6 Evening”. It was bred by Nan Fan North and 7 generations of Peking in the spring of 1974 in Hainan Island. In the evening of 1974, they took part in the hospital product ratio test and sown on June 23,