【摘要】 高粱 (Sorghumbicolor (L .)Moench)、苏丹草 (Sorghumsudanense (Piper)Stapf)属高粱属植物中的不同种 ,但它们的染色体数 ( 2n)均为 2 0 ,杂交不存在遗传障碍。由于两者的遗传关系较远 ,性状差异很大 ,杂交后的F1结合了二者的优点 ,表现出了强大的杂种优势 ,叶宽、叶长、分蘖等主要经济性状接近高亲 ,株高则超过高亲 ,生物产量比高粱和苏丹草增产 5 0 %～ 10 0 %。高粱—苏丹草杂交种还具有抗逆性、抗病性强 ,品质好 ,适口性好等特点 ,是养鱼业、牛羊养殖业等的优良饲草 ,加强开发利用 ,对我国的农牧业生产将产生积极的影响更多还原

【Abstract】 Sorghum( Sorghum bicolor (L.) Moench)and sudangrass (Sorghum sudanense (Piper)Stapf)are the same genus,but different species. They all have a chromosome number of 2n =20 and have no cross barrier each other. As the MS SU hybrid is interspecific cross,which hybrid combined the character of sorghum and sudangrass,so it showed extremely hybrid vigor. Main economic traits as leaf width,leaf length,tiller etc. were close to the high parent,plant hight was higher than the high parent. The biological yield increased 50%～100% than sorghum and sudangrass. MS SU hybrid also have the characteristics of the stress tolerance,disease resistance,good quality and palatability,which is very good fodder for the fish,sheep and cow.更多还原