摘要
为了明确黄顶菊种子动物传播的可能性,利用添加黄顶菊种子的饲料饲喂牛、羊、驴、兔和鸡等动物,研究了黄顶菊种子过腹后的种子活力和田间出苗能力。结果表明,黄顶菊种子经上述5种动物取食后,粪便中均有完整种子存在,5种动物取食种子后排空时间分别为4d、6d、5d2、d和1d,且粪便中种子量随时间延长呈减少趋势;黄顶菊种子经5种动物过腹后(第1天收集)的发芽率分别为25.3%、31.3%、19.3%、10%和11.7%。说明5种动物均具有传播黄顶菊种子的可能性,黄顶菊发生区动物的长途贩运是黄顶菊人为传播的重要途径。
To realize the possibility of seeds dispersed by animals,a study was carried out by adding the seeds of Flaveria bidentis（L.） Kuntze into feeds of five animals such as cows,sheep,donkeys,rabbits and chickens,then analyzing the ability of sprouting and germination of the seeds contained in feces of the animals.Results showed that many of the seeds in the feces were whole and the draining of the seeds would last for 4 days,6 days,5 days,2 days and 1 day,respectively,in turn for the five animals.While the seeds were found to reduce as time elapsed during the draining.Sprouting ratios of the seeds isolated from feces on the first day were 25.3%,31.3%,19.3%,10% and 11.7%,respectively,in turn for the five animals.The results indicate that the F.bidentis seeds may be dispersed by animals,and long-distance travel of animals should be an important approach to disperse the weeds.
出处
《植物检疫》
北大核心
2011年第2期14-17,共4页
Plant Quarantine
基金
公益性行业(农业)科研专项(200803022)
关键词
黄顶菊
过腹
种子活力
传播
Flaveria bidentis（L.） Kuntze
passing through
bellies
vitality
of seeds
propagation
