Some gene-pyramided lines were achieved, in which Xa23 and Bph14 or/and Bph15 were combined through molecular marker-assisted selection in seedling and selection of agronomic traits in adult stage.

• 通过苗期分子标记选择,成株期农艺性状选择,最后获得一系列Bph14、Bph15单基因和Bph14+Bph15双基因纯合且聚合有Xa23基因的水稻品系。