【摘要】 应用固定日长加蓝光与远红光作辅助光照诱导甘蔗开花，使甘蔗与抗逆性及再生性强的斑茅、芒等，通过解决母本花穗去雄、父母本花期不遇和属间杂交不孕等一系列障碍，实现属间杂交成功，定向培育出亚热带地区既耐旱耐瘠又高产优质、终年可供青料的牧草新物种。经过几年的探索，目前已初步选育出若干优异的牧草蔗新品系，其产量及品质均优于对照的甘蔗良种，且在天然条件下终年不开花结实，冬季不枯萎，四季常青，可解决冬季、早春青料供应短缺问题。更多还原

【Abstract】 Some fine sugarcane varieties were induced to bloom by photoperiodic treatment with blue and farred light The intergeneric hybridization between sugarcane and Sarundinaceum, sugarcane and Miscanthus anderss have been achieved by settling the technical barriers, ie spike castration of female plants; unsynchronization of flowering periods between male and female plants; and infertility of intergeneric hybridization The new foragegrass hybrid progenies have been supplied as green fodder all the year round because of their nonflowering and nonwithering characters in the natural condition of subtropic area更多还原