3. Plant Growth & Development

Question 1

Biological yield

Answer 1

Total plant biomass

Question 2

Economic yield

Answer 2

Harvested yield

Question 3

What factors affect yield?

Answer 3

Co2, h2o, mineral nutrients, heat, light, law of minimum

Question 4

Chemical energy: photosynthesis

Answer 4

Co2 + H2O > CH2O + O2

Question 5

Chemical energy: Respiration

Answer 5

Ch2O + O2 > CO2 + H2O

Question 6

What do high optimum temperatures favor

Answer 6

Photosynthesis (days)

Question 7

What do low optimum temperatures favor?

Answer 7

Cell division & elongation (nights)

Question 8

Growing Degree Days (GDD)

Answer 8

GDD = Tmax + Tmin /2 - Tbase

Question 9

Major plant nutrients

Answer 9

Nitrogen, Carbon, Hydrogen, Oxygen, Phosphorus, Potassium, Sulfur, Calcium, Iron, Magnesium

Question 10

Minor nutrients

Answer 10

Manganese, Zinc, Boron, Molybdenum, Chlorine, Copper

Question 11

Primary nutrients

Answer 11

Nitrogen, phosphorus, potassium

Question 12

Secondary nutrients

Answer 12

Calcium, magnesium, sulfur

Question 13

Micronutrients

Answer 13

Boron, copper, manganese, iron, zinc, molybdenum

Question 14

Vernalization

Answer 14

Cooling of a seed during germination in order to accelerate flowering