通过栽培甜菜（ Ｂ．ｖｕｌｇａｒｉｓ Ｌ．） 与白花甜菜（ Ｂ．ｃｏｒｏｌｌｉｆｌｏｒａ Ｚｏｓｓ ．） 种间杂交及回交， 人工合成了异源三倍体甜菜（ＶＶＣ，２ｎ＝ ２７） ，它具有来自白花甜菜的无融合生殖能力，可以稳定传递后代。异源三倍体甜菜具有兼性无融合生殖能力。经过３ 年观察， 异源三倍体甜菜的平均无融合生殖传递率为２４．８６％ ～２７ ．０８％ ，其中累计有９ 个株系传递率达到８０％ 以上（８３．３３％ ～８６ ．６６％ ） 。根据传递后代染色体分布，将异源三倍体甜菜后代分成两种类型，即无融合生殖型及减数分裂型传递。利用植物生长激素在具有无融合生殖基因背景下，试图提高其传递率的努力未获成功 Allotriploid beet (VVC, 2n = 27) was artificially synthesized by interspecific crossing and backcrossing of B. vulgaris L. and B. corolliflora Zoss. Unconcrete reproductive capacity, can be passed on steadily. Allotriploid beets have facultative apomixis. After 3 years of observation, the average apomixis rate of allotetraploid beet was 24.86% -27. 08%, of which a total of 9 strains transmission rate reached more than 80% (83.33% ~ 86.66%). Based on the distribution of progeny chromosomes, allotetraploid beet progeny are divided into two types, apomixis and meiosis. In the context of apomixis, attempts to increase its transmissibility using plant growth hormone have not been successful