Hi, I'm doing an experiment measuring % of seeds that survive a treatment over time. There's four groups: [1. seeds still in their fruit, in normal water],[2.seeds removed from fruit, normal water], [3. seeds in fruit, sea water], [4. seeds not in fruit, sea water].
They were checked weekly for 22 weeks. One of the problems is that one group (seeds not in fruit, fresh water) all germinated in the water, and so I have no more data for them after ten weeks.
On my graph, I have time on the x axis, and % survived on the y. I did do a Pearson test for each group by itself, so I have for seeds in fruit in seawater r = -0.6803, showing that more time results in lower chance of survival. Is that right? How do I compare the four groups?
Any help is really appreciated, I've been looking through books and online but everything about time doesn't seem right.
They were checked weekly for 22 weeks. One of the problems is that one group (seeds not in fruit, fresh water) all germinated in the water, and so I have no more data for them after ten weeks.
On my graph, I have time on the x axis, and % survived on the y. I did do a Pearson test for each group by itself, so I have for seeds in fruit in seawater r = -0.6803, showing that more time results in lower chance of survival. Is that right? How do I compare the four groups?
Any help is really appreciated, I've been looking through books and online but everything about time doesn't seem right.