Genetic affininity among 3 Asian rice ecotypcs(bulu, aus and upland)was studied on the basis of pollen and spikelet fertility in 146 F_1 hybrids involving 13 parents.

• 根据13个亲本146个F_1的花粉育性和小穗育性,研究了亚洲栽培稻三个生态型(布鲁、奥斯及陆稻)的遗传亲和性。