毕业论文（设计）课题名称大蒜及分蘖葱头对波斯菊的化感作用学 院专 业班 级指导老师学生姓名摘 要 采纳不同浓度梯度的大蒜鳞茎溶液和分蘖葱头溶液对两种菊科种子和雏菊的种子的的浸泡处理，在种子萌发期间测定种子的发芽势，发芽率，发芽指数，活力指数及根活力等生理指标，讨论其对波斯菊雏菊种子萌发的影响。结果显示：随着大蒜溶液浓度降低，波斯菊雏菊的各项生理指数均表现为先上升后下降的趋势，当溶液浓度为5mg/L 的溶液浸种可提高波斯菊可提高他们种子的发芽率，发芽势，发芽指数和活力指数，提高幼苗的根长芽长和鲜重，而且根系活力较强，20mg/L溶液处理下的种子的各项生理指标均为最低. 结果表明：大蒜溶液浓度较低的时候，波斯菊和雏菊种子在溶液处理下无明显变化，但是浓度过高会抑制种子萌发。 关键词：大蒜鳞茎；分蘖葱头；波斯菊；雏菊；；AbstractAllelopathy is widely exists in natural ecological system, refers to the plant allelopathy of plant (including microbiological) by releasing chemicals into the environment to other plants (including microbiological) as a result of the direct or indirect harmful effects. The definition of RICE showed that allelopathy of chemical substance is released by plants, allelopathy of results is harmful to other plants or microbes. Now, however, research has shown that the object of the allelochemicals role is more than other plants, sometimes even the same plant. The allelopathy includes not only the result of the harmful, also include some mutual promotion effect. Therefore, somebody called allelopathy of plant - based.Allelopathy between plants is a hot research topic in today's plants. This time, we take the marigold and clovers crops as receptors, passed the test of the seed germination and seedling growth test, the points nie onion liquid and garlic (Allium fistulosumL. Var. Caespitosum Makino) of root system and aboveground water immersion allelopathy is studied. The results showed that the tiller...
