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当前位置: 首页 > 文章 > 入侵杂草牛膝菊和粗毛牛膝菊种子成熟与萌发研究 湖北农业科学 2013,52 (2) 331-333
Position: Home > Articles > Study on Seed Maturation and Germination of Invasive Weed Galinsoga parviflora and G. ciliata Hubei Agricultural Sciences 2013,52 (2) 331-333

入侵杂草牛膝菊和粗毛牛膝菊种子成熟与萌发研究

作  者：
陶波;董玉梅;汤东生
单  位：
云南农业大学植物保护学院/农业生物多样性与病虫害控制教育部重点实验室
关键词：
入侵杂草;牛膝菊;粗毛牛膝菊;种子萌发;种子成熟
摘  要：
为进一步明确入侵杂草牛膝菊(Galinsoga parviflora)与粗毛牛膝菊(G.ciliata)发生和危害规律,对其种子的成熟时间、结实能力和种子发芽能力进行了研究。结果表明,同期播种的粗毛牛膝菊种子成熟早于牛膝菊,全生育期内粗毛牛膝菊的成熟花序和种子数量更多。牛膝菊成熟种子28℃培养5 d发芽率超过40%,培养15 d基本完成发芽;粗毛牛膝菊种子培养5 d基本不发芽,培养30 d发芽的仍较多。可见粗毛牛膝菊的结实能力强于牛膝菊,但种子发芽速度慢,发芽周期长。推测粗毛牛膝菊种子可能具有一定的后熟或休眠特性,显示出更强的环境适应性。
译  名：
Study on Seed Maturation and Germination of Invasive Weed Galinsoga parviflora and G. ciliata
作  者：
TAO Bo,DONG Yu-mei,TANG Dong-sheng(College of Plant Protection,Yunnan Agricultural University /Key Laboratory for Agro-Biodiversity and Pest Control of Ministry of Education,Kunming 650201,China)
关键词：
invasive weed;Galinsoga parviflora;Galinsoga ciliata;seed germination;seed maturation
摘  要：
The present study was carried out to explore seed maturation and germination of two invasive weed Galinsoga parviflora and G.ciliata.The result showed that seed maturation time of G.ciliata was earlier than that of G.parvilora.Moreover,inflorescence and seed number of G.parviflora were higher than that of G.parviflora.Germination was examined,germination percentage was above 40% after seeds of G.ciliata were incubated 5 days.And after 15 days incubation,there was no germination.However,there was no germination of G.ciliata after seed was incubated 5 days.Seeds of G.ciliata continued to germinate till 30 days later.It was seemed that G.ciliata possessed the high seed formulation,low germination potential and long germination period.It was suggested that seed of G.ciliata would have the characteristics of after-maturation or dormancy.

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