通过普通小麦“中国春”与抗赤霉病的亲缘物种大赖草杂种回交后代ＢＣ２Ｆ３和自交Ｆ４代的花药培养，获得了７２株花培植株，其中２８株结实。这些株系的株高、穗形和成熟期等性状在Ｈ２系间差异明显，但株系内整齐一致。对２８个Ｈ２代株系进行根尖细胞染色体计数，２５个２ｎ＝４２，１个２ｎ＝４４，２个２ｎ＝４６。通过花粉母细胞减数分裂中期Ⅰ染色体配对分析和染色体Ｃ－分带，在Ｈ２代中选育出一个异代换－附加系（２ｎ＝４４）Ｌ０７，两个双重二体异附加系（２ｎ＝４６）Ｌ０３－０５和Ｌ０６。 Through the anther culture of BC2F3 and selfing F4 progenies of backcrossing common wheat “Chinese Spring” and Fusarium head blight resistant hybrids, 72 plants were obtained, of which 28 were strong. The traits such as plant height, panicle and maturity of these lines differed significantly among H2 lines, but the lines were neat and consistent. Root cell chromosome counts were performed on 28 H2 generation lines, 25 2n = 42, 2n = 44 and 2n = 46. An isogenic substitution-addition line (2n = 44) L07 was selected in the H2 generation by metaphase I chromosome pairing analysis and chromosome C-banding of pollen mother cells. Two double extraneous addition lines (2n = 46) L03-05 and L06.