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本试验对从八倍体小偃麦与普遍小麦的杂种后代中选出的10个优良小麦种质系,进行了细胞学和田间试验鉴定。结果表明,在这10个小麦种质系中,其中有2个品系为单体异附加系,1个品系为双单体异附加系,2个品系为双体异附加系。有5个品系染色体数目与普通小麦相同,但具有偃麦草的某些特点,细胞学上具有异常行为,它们可能为新的次生六倍体小麦。这些小麦种质系中,有的综合性状较好,具有较好的丰产性能,有希望在生产上直接加以利用;有的虽然综合表现欠佳,但具有突出特点,可作为种质材料在育种上利用。
In this study, 10 elite wheat germplasm lines selected from the progenies of the hybrids of O. tumefaciens and G. vulgare were identified by cytology and field experiments. The results showed that among the ten wheat germplasm lines, two of them were monosomic additions, one was a two-monomer alloplasmic addition line and two were two-part alien addition lines. Five lines have the same number of chromosomes as common wheat, but have some of the features of the genus Agropyron, cytologically abnormal behavior, they may be new secondary hexaploid wheat. Some of these wheat germplasm lines have better comprehensive characters, better yield performance, and hopefully they can be used directly in production. Some of them have outstanding features, but they can be used as breeding materials in breeding Use on.