远缘杂交是育种的重要途径。为了获得适合西双版纳勐嵛地区的水稻良种,我们于1976—1978年将水稻与薏苡进行属间杂交,当年得12粒杂种种子,仅2株成苗。所得杂种后代(2—5代)疯狂分离,其性状表现大部分象水稻(母本),少数象薏苡(父本),如穗形、粒形、茎粗、株高等。 Distant hybridization is an important way of breeding. In order to obtain the rice varieties suitable for the Mengxi area in Xishuangbanna, we crossed the rice with Coix in the period of 1976-1978, and then got 12 hybrid seeds in that year, only 2 were seedlings. The resulting hybrid offspring (2-5 generations) crazy separation, most of its traits like rice (female), a few like Coix (paternal), such as the panicle, grain shape, stem diameter, plant height.