rye seeds

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Betsy Burke : 

Betsy Burke Dose / Response Bioassay Results

Slide 2: 

Introduction

Determine the effects of TC50 of salt on an organism. : 

Determine the effects of TC50 of salt on an organism. Fall Rye Seed

Setting Up : 

Setting Up 8 Cups 8 Lids Rye Seed Distilled Water Paper Towel Rounds Salt Measuring Cup

Slide 5: 

I set 8 cups up and placed the paper towel rounds in the bottom. I then placed 5 rye seeds in each cup, and added each different salt water concentrations over top the seeds. Methods

Slide 6: 

I then covered the seeds with their plastic lids and placed them in to a dark cardboard box. The room remained at a consistent temperature of 72 degrees F.

Results : 

Results The seeds remained in the box for 7 days without disturbing them. When it was time for them to come out of the dark this is what I found:

Slide 8: 

As each salt water concentration increased the plants did not germinate and grow as well as the ones that had no salt added such as in control cups 1 & 2. Grew Great! 0 Salt Didn’t even germinate! High level of salt water concentration

Graphs & Charts : 

Graphs & Charts

Conclusion : 

Conclusion Salt content greatly affects the growth of plant life depending on its concentration level. A large amount of salt in a small amount of water can even kill the organism.