【摘要】 <正> 豆科驴豆属(Onobrychis L.)在全世界约有100种,其中栽培种主要有普通红豆草(O.viciaefolia)。研究资料表明,栽培红豆草不仅营养丰富、产量高,而且还是良好的绿肥和蜜源植物。尤其用它的纯鲜草饲喂家畜不患胀腹病,抗苜蓿象蝉,耐旱、耐土壤贫瘠等,是干旱、半干旱地区有推广前途的豆科牧草。该属多为野生种,在新疆分布有一种多年生野生红豆草(O.tanaitica,顿河红豆草),过去我国对它研究甚少。更多还原

【Abstract】 The botarical, biological characteristics and the ecological distribution of O. tanaitica were studied in this paper. It also showed the economical values and the chromosome numbers of it, and provided some scientific informations for the further culture and plant breeding. This paper showed that the herb was well appetizing and had higher nutritive value for livestocks. The root nodules developed well. The growth phase was shorter, the winter hardiness was stronger than O. viciaefolia’s. The chromosome numbers of O. tanaitica and O. viciaefolia were 2n=14 (diploid) and 2n=28 (tetraploid) , resp. The cross rate of O. viciaefolia x 0. tanaitica was 5.0%. The results suggested that the herb not only be able to be used as the mixture and the reseeding herbage for range improvement, but also be a legume that has a fulture in mountain pastures and dry areas. It was a considerable original breeding, material.更多还原