利用多年生豆科牧草自身激素的调整,进行营养体扦插繁殖,在异花授粉牧草的育种中,是保持优良单株性状,加速后代繁殖,建立株系、品系的一个较简单又实用的有效方法,特别在雄性不育系的选育中,三系未配套前,利用营养体繁殖雄性不育植株,意义更大。沙打旺(Astragalus adsurgens Pall.)和红豆草(Onobrychis vicaefolia Scop.)两种多年生豆科牧草,在营养价值方面与紫花苜蓿(Medicago sativa L.)近似,而抗旱能力较紫花苜蓿强,尤其是沙打旺在风沙干旱地区最为适应,是我国著名的固沙牧草,但引 The use of perennial legume grass hormone regulation, nutrition vegetative cutting propagation, cross breeding in the pollination of pasture, is to maintain good plant traits, accelerate the offspring reproduction, the establishment of strains, strains of a more simple and practical and effective method , Especially in the breeding of male sterile lines, three lines without supporting before the use of vegetative propagation of male sterile plants, more meaningful. Astragalus adsurgens Pall. And Onobrychis vicaefolia Scop. Are both similar to alfalfa (Medicago sativa L.) in terms of nutritional value and stronger in drought resistance than Medicago sativa, especially Sandy prosperous in arid and sandstorm the most adapted, is our famous sand forage grass, but cited