栽培稻 (Oryza sativa) 與野生稻 (O. nivara) 種間雜種及回交後裔族群產量性狀之變異

Abstract

本研究以臺梗1號(TK1)及臺農67號(TNG67)兩個種稻品種為輪迥親本與由國際稻米研究所引進之野生稻種O. nivara(Acc.104705)雜交及回交，探討所得各F1、F2、BC1F1、BC1F2、BC2F1、BC2F1、BC3F1、BC3F2族群稔實率、穗數、每穗粒數及千粒重等性狀的變異， Two sinica varieties, Tainung 67(TNG 67) and Taiken 1(TK1), and a wild rice, O. nivara (Acc.104705) were used as the recurrent parents and non-recurrent parent, respectively, to investigate the genetics and breeding behaviors for the fertility, panicle number, grain number of per panicle and 1000-grain weight of the interspecific hybrid progenies of Oryza species. The F1, F2, BC1F1, BC1F2, BC2F1, BC2F2, BC3F1 and BC3F2 populations of two cross combinations were simultaneously planted at the experimental farm of Taiwan Agricultural Research Institute in the first crop of 1996.