目前国内外水稻矮源多为籼型水稻,故此粳稻矮化育种只能从籼稻矮源转育。这样非但籼粳交后代不易稳定,而且矮秆基因也单一化。我们于1979年初通过台中育39幼穗切段外植体的组织培养,诱导产生一个粳型矮秆突变体“武陵矮”,株高18厘米左右,能正常开花结实,其穗形、粒形等与原品种相 At present, most of the rice dwarf sources at home and abroad are indica rice, therefore, the dwarf breeding of japonica rice can only be transferred from the dwarf source of indica. This is not only not stable indica and japonica cross generation, and dwarf gene is also a single. At the beginning of 1979, we adopted the tissue culture of cuttings explants of Yuzhong 39 in Taichung to induce the emergence of a short mutant “Wuling dwarf” with a height of about 18 centimeters, which can flowering and fruiting normally with its spike shape and grain shape The original species phase