Search the Community: Showing results for tags 'germination'.
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So I'm doing my bio ia on the effect of different concentrations of sulfuric acid on seed germination. It's been nearly 3 weeks and I only have data for the control test (spraying with distilled water), and very few seeds germinated for any of the other concentrations (0.2M, 0.5M, 1M, 2M, 5M). These few seeds that have germinated won't really have any effect when I do the means for the 5 trials of each. Is it ok if I have very little variation in my data? It would be like an average of 14 out of 20 seeds for the control test and then less than 1 for every other increment. Does this reflect badly on me in any of the criteria? Or should I try and 'manipulate' my results? I realistically don't have much longer to do the experiment as I'm running out of supplies and school is closed for the break, and my teacher wants the other half of this ia done as soon as possible. Is it worth faking my results or should I just be honest?
Kai_Harry posted a topic in Extended EssayI'm doing my EE in Biology. My Research Question is "To what extent does constant cold acclimation at the temperatures 18˚, 10˚, 4˚, and 0˚ degrees centigrade affect the seed germination rate and subsequent total biomass yield produced in Phleum pratense L. (Timothy grass)?". I'm growing seeds under different temperatures in growth chambers. I was wondering: what number of seeds to germinate for each temperature range would be significant for my data? Even though I have 35+ sources; none of them state the amount of seeds which they germinated (total or for each temperature range), rather, they simply conducted calculations with the mysterious total percentage of the seeds which germinated, which leads me to think that the total amount of seeds needed aren't significant and rather it's how many of those germinated, but then again, conducting a germination test with 2 seeds doesn't sound so good in practical terms. So what do you think? What number of seeds would be safe to use? My supervisor suggested I used 50. How overkill is that?
hey everyone. I´m almost done with my bio IA. It´s about the effect of coffee on the germination rate of bean seeds. I feel that it was a pretty simple experiment. I had 5 different containers. 10 seeds in each one, with different concentrations of coffee (I watered them with it), with one control group. The dependant variable was the days it took the seeds to germinate. The problem tthat I have is that I don´t know which statistical test I should use for the analysis. I did the ANOVA test but the result seemed...off. I don´t know if that was because ANOVA is not the right tool to use for this experiment. But I don´t really know of any other test that I can use for a germination experiment so any ideas would be appreciated.
i have a topic for my Bio IA which is, the effect of sugar on seed germination. I don't know what seeds i'll be using yet, but i will place them in a container surrounded by cotton buds and will add water every day, with plain water as the constant. I not entirely sure what concentration levels of sugar to use or how to calculate molars. I'm not sure what the results would be. How many seed have germinated? the growth of the seeds? and how it could become meaningful data, e.g. tables, graphs. if anyone has done an IA or prac similar to this or has some knowledge, any input would be greatly appreciated, thank you. Chris Collins.