苜蓿属有些种,通过种间杂交形成的大量的各种变异苜蓿(Medicago variaMart)类型,在自然条件下已经得到了广泛的普及。由 B.M.拉比诺维奇等在国家南部地区进行的研究表明:利用诱发多倍体的方法可以为远缘杂交提供有价值的原始材料。1980～1983年,在全苏威廉士饲料研究所中心试验基地,通过交互杂交(不去雄)得到了北方苜蓿(M.borealis Grossh2n=16)野生类型分别与捷基诺夫品种、变异苜蓿的北方杂种品种(2n=32)、杂花苜蓿(M.polychroa Grossh 2n=32)、和苜蓿(M.cance-llata Bieb,2n=48)的种间杂种。 There are some varieties of Medicago, and a large number of varieties of Medicago variaMart, which are formed through interspecific hybridization, have been widely spread under natural conditions. Studies carried out in the southern part of the country by B. M. Rabinovich et al. Show that polyploidy can be used to provide valuable raw materials for distant hybridization. From 1980 to 1983, the wild type of northern alfalfa (M. borealis Grossh2n = 16) was crossed with that of Jekyoninu variety, alfalfa alfalfa Northern hybrids (2n = 32), M.polychroa Grossh 2n = 32, and interspecific hybrids of M. cact-llata Bieb (2n = 48).