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利用幼胚培养技术获得了栽培大麦(Hordeum vulgare,2n=2x=14)×球茎大麦(H.bulbosum,2n=4x=28)和平展大麦(H.depressum,2n=4x=28)×栽培大麦种间杂种。杂交结实率分别为95.8％和75.0％。杂种在形态上偏向野生大麦亲本,自交不孕,回交亦不结实。栽培大麦×球茎大麦杂种在减数分裂中期Ⅰ的平均染色体构型为6.08Ⅰ+4.76Ⅱ+1.36Ⅲ+0.29Ⅳ,双亲染色体组间有比较高的同源关系,但在染色体结构上已有所分化。平展大麦×栽培大麦杂种表现减数分裂染色体数目的不稳定性,中期Ⅰ的平均染色体构型为16.02Ⅰ+2.47Ⅱ+0.02Ⅲ,表明双亲染色体组间无同源关系。本文对野生大麦种质导入栽培大麦的可能性进行了讨论。
Malting barley (Hordeum vulgare, 2n = 2x = 14) × H.bulbosum (2n = 4x = 28) and barley (H.depressum, 2n = 4x = 28) Interspecific hybrids. Seed setting rate was 95.8% and 75.0% respectively. Hybrids in the form of biased wild barley parents, self-fertility, back is not strong. The average chromosome configuration Ⅰ of the hybrids of cultivated barley × bulblet barley was 6.08Ⅰ + 4.76Ⅱ + 1.36Ⅲ + 0.29Ⅳ in mid metaphase, and there was a high homology between parents, but the chromosome structure Differentiation. The average chromosome configuration of metaphase I was 16.02Ⅰ + 2.47Ⅱ + 0.02Ⅲ, indicating that there was no homologous relationship between the parents chromosomes. This article discusses the possibility of introducing barley into wild barley cultivars.