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本文报道了甜菜属组间远缘种杂交困难的克服方法。观察到糖甜菜初级三体对B.corolliflora,B.Procumbens杂交的成功率为9％～41％,单体异附加系为12.5％～60％,说明远缘杂交中基因型构成有重要作用,三体及异附加系是良好的桥梁材料。发现B.vulgaris×B.patula→F_1,对前两个物种及B.Patellaris杂交成功率为20％～60％,说明它们不仅是良好的桥梁材料,而且所获三杂种材料可能具有重要的潜力。添加赤霉素、延迟及重复授粉只有辅助作用。生根素及受精胚珠培养是保证杂种存活的重要措施。
This paper reports the method to overcome the difficulties of crossbreeding of the distant species in the genus Beet. It was observed that the success rate of sugar beet primary trisomies to B.corolliflora and B.Porocumbens hybridization was 9% -41%, and the monomer addition system ranged from 12.5% to 60%, indicating that genotype composition in distant hybridization had an important role. Three body and different attachment system is a good bridge material. The B.vulgaris × B.patula → F_1 was found to have a success rate of 20% -60% for the first two species and B.Patellaris, indicating that they are not only good bridging materials but that the three-hybrid material obtained may have significant potential . Gibberellin added, delayed and repeated pollination only aid. Rooting hormone and fertilization ovule culture is an important measure to ensure the survival of hybrids.