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通过核型研究，分析了节-硬-偏八倍体的遗传组成。Genetic construction of JYP octoploid were analysed by karyotype.

本文用八倍体小黑麦与普通小麦进行正反交。In this paper, the reciprocal cross was made between octoploid triticale and common wheat.

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类细胞质对改进八倍小黑麦的结实率可能有一定的作用。D-type plasm perhaps has certain effects in improving seed-set rate of octoploid triticale.

其中前2种的八倍体核型和2个十二倍体植物的核型为首次报道。The karyotypes of the first 2 octoploid and the 2 dodecaploid species are reported for the first time.

八倍体小偃麦是普通小麦与天蓝偃麦草杂交良好的桥梁材料。Octoploid a- grotriticum hybrid is an excellent material for the crossing with common wheat and A. glaucum.

因此，芦苇的引种、良种繁育及新品种选育、应侧重于八倍体。Therefore, the octoploid seed should be first selected in the introduction, propagation and breeding of new varieties.

在普通小麦的遗传背景下导入了偃麦草的染色体组而形成的新的中间类型八倍体小偃麦。We introduced the genome of Thinopyrum into common wheat, and formed the new intermediate type of octoploid Trititrigia.

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小偃麦兼有小麦和天蓝偃麦草的酶带，是不同于小麦和天蓝偃麦草的八倍体新类型。There are bands of Triticum and Elytrigia in Tritielytrigia, they are new octoploid types that be different from Triticum and Elytrigia.

型细胞质“远中3”育性正常，表明八倍体小偃麦“远中3”的E组染色体中存在G型胞质的育性恢复基因。A normal fertility of G-cytoplasmic "Yz-3" means exist of G-type fertility restorer gene in the E genome of octoploid trititrigia line, "Yz-3".

利用八倍体小偃麦与普通小麦杂交，通过连续选择选育出抗旱小麦品种小偃597。With crossing between octoploid Tritielytrigia types and Triticum aestivum , the drought resistant wheat variety Xiaoyan 597 was bred by continuous selection.

利用该技术揭示水稻品种的起源、遗传背景和亲缘关系，把我国八倍体小黑麦划分为两种不同类型。This technology discloses the origin, genetic background and relative relation of rice breeds and divides Chinese octoploid Triticale into two different types.

用压片法对八倍体小黑麦和八倍体小滨麦杂种F1的小孢子发生和雄配子体发育进行了细胞学观察。Cytological characteristic were studied on microsporogenesis and male gametophyte development of F1 hybrid between Octoploid Triticale and Octoploid Tritileymus by using squash method.