anazoh said:Hello, i really need some help here, i want to ask question regarding allelopathy, so i've done experiment on Chromolaena odorata leaves extract, and i've tested it on the the germination of Amaranthus tricolor seeds. However, problem is my result shows that, 10.0% concentration of leaves extract application shows better result in seed germination compared to 7.5% extract of leaves. can someone explain this to me please, i'm really desperate to know.
Do you know for sure that Amaranthus is supposed to be susceptible to its allelopathic effects? If not then my first thought would be that it is not, same as not all plants are susceptible to the juglone from black walnut for example. In that case the explanation may be that there's something in it that stimulated the germination or it is coincidence. How many seeds were in the test batches? Did you have an untreated contol?
Edited to add - by coincidence I mean that the 10% versus 7.5% difference may be coincidence but that somewhat depends on how many germinated and how many seeds were started.
BTW I had trouble finding this question again, I think it was a separate thread originally unless I'm dreaming. When I came back to answer I finally found it tagged on to this thread. @anazoh
welcome to ATP and I hope you find your way here.