Bio PLant investigation

7TH Form
Biology
Plant Investigation

Contents


1. Abstract


2. Background Information


3. Aim/Hypothesis/Variables


4. Method


6. Results


7. Graphs


9. Conclusion







Background Information

Lettuce
'Lactuca sativa Continental Looseleaf Frisby'

How to grow Lettuce
Lettuce is fast growing and is one of the few vegetables that can grow almost all year round. Lettuces can rarely be over watered. Sometimes the seeds need to be refrigerated for them to germinate effectively.

Lettuce seeds germinate better in cool soils and will become dormant in soil temperature of 25C and above. You can begin to sow seeds of cold tolerant varieties about four weeks before the last expected frosts. Sprinkle the seeds onto the top of the soil, either directly into the vegetable garden or in a starting tray, and cover lightly with soil. Dampen the soil and remember to keep the new seedlings and later the plants moist- lettuce needs moisture throughout t...