摘要
本文首次对利用Ms-P型水稻育种的途径和方法,设计了运用该水稻进行轮回选择(包括逐级轮回选择系统、阶梯式轮回选择系统)和将广亲和性基因S_5~n导入到具有较好配合力的材料中去的回交育种体系。萍乡显性核不育水稻的雄性不育性受单一显性不育基因(Ms-P)控制,显性不育性稳定,在轮回选择中,它是较为理想的工具材料,建议将Ms-P基因导入到一系列胞质及核质遗传背景中,构成Ms-P型水稻种质资源库。广泛地将它应用于水稻育种,对育成超高产品种,将可起到一定的促进作用。
Ms-P type rice is one of the best materials to facilitate recurrent selection in rice breeding because of its dominant male sterility controlled by a single allele and its good cross-pollination character. In this paper , two systems of recurrent selection newly designed for application of Ms-p type rice were introduced, i.e. system of step-by-stcp recurrent selection and system of ladder-like recurrent selection. Furthermore, a backcross procedure for the tcansfer of S5n gene by means of the dominant male sterility was given.
出处
《江西农业学报》
CAS
1990年第2期8-14,共7页
Acta Agriculturae Jiangxi
