栽培稻與野生稻種間雜種及回交後裔族群糙米性狀之遺傳研究

Abstract

野生稻O. nivara(IRGC Acc. 104705)穀粒細長具褐色種皮為貢獻親，中國型稻臺稉1號(TK1)及臺農67號(TNG67)穀粒短圓為輪迴親行雜交及回交，由各所得之F1、F2、BC1F1、BC1F2、BC2F1、BC2F2、BC3F1、BC3F2族群為材料探討糙米種皮顏色、粒長、粒寬及粒形等性狀的遺傳及育種行為。 Two sinica cultigens, Tainung 67 (TNG 67) and Taiken 1 (TK 1), and a wild rice, O. nivara (Ace. 104705) were used as the recurrent parents and donor parent, respectively, to investigate the genetic behaviors for the seed coat(brain) color, grain length, grain width, and grain shape (length-width ratio) 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.