远缘杂交的主要障碍是由于“生殖隔离”所造成的杂交不亲和性(不可交配性)和杂交不育。为克服杂交不能结实和提高成胚率,我们于1988年以延续授粉方法,做了一些杂交组合进行观察。材料与方法一、供试材料用IR系统、JR血缘、云南稻种血缘的栽培稻和野生稻等六种类型18个品种为母本,以假稻(来源于当地野生)为父本,杂交配制了18个组合,某中5个 The main obstacle to distant hybridization is hybrid incompatibility (non-malleability) and hybrid sterility due to “reproductive isolation”. In order to overcome the incompatibility of hybrids and improve the embryo rate, we conducted some hybridization combinations in 1988 with the method of continuous pollination. MATERIALS AND METHODS I. TEST MATERIALS Sixteen eighteen cultivars, including IR, JR bloodline, cultivated rice and wild rice cultivated in Yunnan province, were used as female parent and false rice (derived from local wild) as male parent. Prepared of 18 combinations, of which 5