Lehoczky E, Szabó R, Nelima M Okumu, Nagy P, Béres I
University of Pannonia, Georgikon Faculty, Institute of Plant Protection, Keszthely, Hungary.
Commun Agric Appl Biol Sci. 2010;75(2):107-11.
In the last decades the importance of some weed species increased in Hungary. The common ragweed (Ambrosia artemisiifolia L.) also belongs to this group. The allelopathic effect of watery extract made from different plant parts of common ragweed (air dried leafy shoots, seeds) were studied on the germination and growth of some weed species. The extracts were prepared with tap water, chopped dry plant materials were added to water and 24 hours later the material was filtered. The germination took place in a Binder KBW type thermostat in dark. 25 seeds were put into one Petri-dish, adding 15 ml plant extract to each in four repeats. The timing of germination was checked in every two days and the rate of growth was estimated after a week, by counting the numbers of germinated seeds and measuring the length of the radicle and plumula. The measured data were statistically analysed and the effect of extracts on germinating ratio and seedling length were evaluated.
在过去几十年里，匈牙利一些杂草物种的重要性有所增加。普通豚草（Ambrosia artemisiifolia L.）也属于这一类。研究了从普通豚草不同植物部位（风干的带叶嫩枝、种子）制成的水提取物对一些杂草物种发芽和生长的化感作用。提取物用自来水制备，将切碎的干燥植物材料加入水中，24小时后过滤材料。发芽在Binder KBW型恒温箱中黑暗条件下进行。将25粒种子放入一个培养皿中，每个培养皿加入15毫升植物提取物，共进行四次重复。每两天检查一次发芽时间，一周后通过计算发芽种子数量和测量胚根与胚芽长度来估计生长速率。对测量数据进行统计分析，并评估提取物对发芽率和幼苗长度的影响。
