【摘要】 以中国春小麦(2n=6X=42)为母本,苏联球茎大麦(2n=4X=28)为父本,进行属间杂交,授粉24小时后,在已授粉母本的柱头上滴赤霉酸(GA3),刺激幼胚生长,以中国春单体5B为母本的,可以获得少量结实的杂交种子;而以中国春为母本的,则必须结合离体培养杂种幼胚,才能获得中国春小麦与球茎大麦属间杂种,杂种植株的形态表现为中间型,其染色体数在24—30之间,自花不育。我们的试验结果与英国剑桥植物育种研究所不同,更多还原

【Abstract】 With the aid of dripping GA3 to the wheat stigmas one day after pollination and then by culturing the young embryos in vitro 12-16 days later,some intergeneric hybrids between Triticum aestivum var.Chinese Spring(2n = 6x = 42)and Hordeum bulbosum USSR(2n = 4x = 28)had been obtained.In case of using monosomic 5B of Chinese Spring as the female parent,a few hybrid grains were obtainable without the latter procedure.It was found that the hybrids were intermediate in plant type between the two parents,and there were 24-30 chromosomes in a number of pollen mother cells of the hybrids which were self-sterile haploids.Our result differed from that reported by the Plant Breeding Institute in Cambridge,England.更多还原