Investigating Tomato Inhibitors on the Germination of Seeds Essay

6147 Words25 Pages
Biology Unit 6: Investigating tomato inhibitors on the germination of seeds Abstract The aim of this investigation is to investigate the effect of different germination inhibitors of tomato on seeds. A number of tomato seeds from tomatoes of the same variety were extracted and placed in a petri dish with cotton wool. With the use of tomato germination inhibitors like tomato juice, high level of sugar and gel coat, I was able to measure the percentage germination of the seeds. The results obtained showed that the gel coat that is found around each tomato seed and the tomato juice itself act as germination inhibitors resulting to the non-germination of the tomato seeds; agreeing with the experimental hypothesis. The t-test was used to show the statistical significance between the germination inhibitors and germination of seeds. The results of the 1st and 2nd t-test support my hypothesis as they revealed a 99.9% and 95% confidence respectively that there is a correlation between my two variables (the number of seeds that germinated against the germination inhibitors). There is a genuine biological correlation as I am 95% sure that the correlation did not occur by chance thus experimental hypothesis is accepted while the null hypothesis is rejected. Null hypothesis There will be no difference in the number of seeds that germinate (percentage germination), whether or not germination inhibitors are used. Experimental hypothesis There is a significant difference between the number of seeds that germinate when using germination inhibitors, and when not using germination inhibitors. Seeds will NOT germinate in the presence of any germination inhibitor. Research and Rationale Tomato seeds usually germinate when exposed to the proper amounts of moisture, oxygen and a fairly warn temperature. However,

More about Investigating Tomato Inhibitors on the Germination of Seeds Essay

Open Document