野牛草有性繁殖的生物学特性及其影响种子生产的因素  

On the sexual reproductive biological characteristics and factors affect seed production of Buchloe dactyloides

作　　者：胡晓艳[1] 呼天明[1] 李敏[2] 杨青川[2] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100 [2]中国农业科学院北京畜牧兽医研究所,北京100094

出　　处：《西北农林科技大学学报（自然科学版）》2007年第1期81-86,共6页Journal of Northwest A&F University(Natural Science Edition)

基　　金：草地植被恢复重建关键技术研究与示范(2004BA528B01);国家"863"项目"优质;抗逆草坪草新种质培育技术研究"(2001AA244051)

摘　　要：研究了野牛草的花器官形态、开花习性、雌株的柱头可授性及不同栽培措施对其种子生产的影响。结果表明,野牛草雌、雄株的花器官在外部形态上差异较大,开花习性不同,但花期基本相遇;雌株柱头可授性在开花后10 h内最强,24 h后逐渐减弱;在雄株盛花初期的上午进行人工套袋授粉,能够获得产量和质量较高的种子;野牛草施肥和灌水应在雌株抽穗前期及抽穗期进行,不宜在盛花期进行。The flower organ shape,blossomed habit,aeception of stigma of Buchloe dactyloides and the influence on the seed production with different management measures were studied. The result indicates the flower organ of male and female of buffalo grass differs greatly on the external shape and characteristics of blooming,but meet basically in florescence. The acception of female stigma is strongest in the latter 10 hours to blossom, after 24 hours, weakens gradually. The artificial wrap bag pollination should choose in the morning at the beginning of blooming period ,thus can obtain the high yield and good quality of seed. Fertilization and irrigation should be conducted in the female earing earlier period and the earing period ,but not in blooming period.

关 键 词：野牛草 有性繁殖 种子生产 

分 类 号：S543.901[农业科学—作物学]