【摘要】 博优 2 5 3是广西大学利用自选的强优恢复系测 2 5 3 (IR3 6 田东野生稻∥IR2 0 61///IR2 4 古 15 4)与博A配组育成的晚籼新组合。该组合高产稳产 ,米质较优 ,耐寒力强 ,适应性广 ,制种产量高 ,全生育期 12 0d左右 ,单产 7.5 0～ 9.0 0t hm2 ,2 0 0 0年 12月通过广西区农作物品种审定。介绍了恢复系测 2 5 3的选育经过及该组合的特征特性和栽培制种技术要点。更多还原

【Abstract】 Boyou 253, derived from Bo A and a strong restorer line Ce 253 (IR36/Tiandong Wild Rice∥IR2061 /// IR24/Gu 154), is a newly developed indica hybrid rice combination with high and stable yield, fine grain quality, strong cold tolerance, wide adaptability and high seed production yield. It matures in about 120 days and yields 7.50～ 9.00 t/hm 2 grown as late cropping rice in Guangxi. It was certified in Guangxi in December, 2000. The breeding procedure of Boyou 253 and its restorer line Ce 253, the characteristics and technical points in the cultural management and hybrid seed production of Boyou 253 were introduced in this paper.更多还原