【摘要】 野生二粒小麦（Triticum dicoccoides Con,2n=4X=28）与野生燕麦（Avena fatua L、2N=6X=42）直接杂交成功。F₁代优势强,主穗和一、二次分蘖穗基本不结实,愈到以后分蘖结实率愈高,所结种子饱满和基本饱满,F₁的穗子不断节,颖壳包裹籽粒不太紧。F₁花粉母细胞镜检表明,野生二粒小麦的2组染色体与野生燕麦3组染色体中的2组基本配对。杂种F₂分离出5株燕麦型植株,经过氧化物同工酶研究表明,它们具有野生燕麦的特征谱带,又具有野生二粒小麦的特征谱带,大部分小麦型植株均具有野生燕麦谱带。更多还原

【Abstract】 The direct hybridization between T. dicoccoides corn. and Avena fatua L. have been sueceeded, fruit-bearing rate was 2%, F₁ had strong dominance. The main ear and ears of first and second tillers essentialy did not bear the ear of third tiller began bear, the more ofterwards, the more high was the fruit-bearing of tillering ears. The hybrid of 2 plants had 102 ears, borne 75 seeds, which were fuller or full.F₁ ears essentialy were not broken. Lemma nad palea were not tightly packaged. F₁ pollen maternal cell were checked with the microscope, A and B chromosomal groups of Triticum dicoccoikes and 2 chromosomal groups of 3 group in the cell of Avena fatua each other principal were paired. From the F₂ hybrids 5 plants of oat types were separated, checked with peroxisome isozymes. they possessed bands of T. dicoccoides. Most F₂ hybrids of wheat type plants possessed bands of wild oat. From F₁ hybrids were separated plants of hexaploid wheat type.更多还原