论文部分内容阅读
继首次获得小麦─偃麦草─簇毛麦三属杂种后,又进行了小簇麦/小偃麦//小黑麦异源多倍体间杂交,首次获得了小麦─堰麦草─簇毛麦─黑麦四属杂种。杂种F1形态兼有四属亲本类型的特征,为中间型,生活力旺盛,株穗数、株高、穗长、主穗小穗数的平均值均高于亲本的平均值,显示出较强的杂种优势。根据F1植株颜色、芒形、颖形、颖肩、颖嘴及颖脊刚毛、茎基鞘毛、颈毛的有无等主要性状与亲本比较分析,确证我们用三种异源双二倍体或部分双二倍体之间杂交,已获得了真正的四届杂种。杂种F1能少量结实。
Following the first accession to the three wheat-Agropyron-Hamster hybrids, a small cluster of wheat / Triticum / Triticale hybrids was crossed, and the first wheat- Barley grass- Four rye hybrids. The F1 hybrids had the characteristics of the four genera, which were intermediate type and strong vitality. The average number of spikelets per panicle, plant height, spike length and spikelet number of main spikes were higher than the average of the parents Heterosis. According to F1 plant color, mantle, Ying shape, Ying Shoulder, Yingzui and Ying ridge bristles, stem sheath sheath hair, neck hair and other major traits and other comparative analysis of parents and confirmed that we use three heterologous double diploid Or partial double diploid hybrids, has been the real fourth hybrid. Hybrid F1 can be a small amount of strong.