Phenotype and Environment Interaction. Chad Bonstead Denise Fancher Julie Kondoff Matt Luensmann. What is a Genotype?. “internally coded, inheritable information” Coded language, “blueprint” Cannot be observed Codes for protein synthesis. Phenotype is…. “outward physical manifestation”
Phenotype and Environment Interaction
Plant growth is vitally dependent on temperature.
Plant growth is dependent on water.
< 4.5 = extremely acidic (lemon)
4.5 - 5.0 = very strongly acidic (tomato)
5.1 - 5.5 = strongly acidic (carrot)
5.6 - 6.0 = moderately acidic (potato)
6.1 - 6.5 = slightly acidic (milk)
6.6 - 7.3 = neutral (saliva)
7.4 - 7.8 = slightly alkaline (eggs)
7.9 - 8.4 = moderately alkaline (sea water)
8.5 - 9.0 = strongly alkaline (borax)
9.1+ = very strongly alkaline (ammonia)
Effects of Soil pH on Plants
Solubility of minerals and nutrients, especially aluminum.
Most nutrients are more soluble in acidic soils.
Special case: Phosphorous
The presence and availability of these minerals determines several plant characteristics.
Neutral soils produce white blooms on Hydrangeas
What’s Being Done and
Where Do We Go From Here?
All websites current as of February 27, 2003.