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WorksheetsPlant Growth Factors Test Review
Total questions: 35
Worksheet time: 18mins
Which of the following is an example of a SDP (Short - Day Plant) ?
A plant whose flowering is not affected by the number of daylight hours.
A plant that flowers when it receives less than 12 hours of daylight hours.
A plant that flowers when it receives more than 12 hours of daylight hours.
All of the above
Which plant process is driven by visible light?
Cellular respiration
Transpiration
Photosynthesis
All of the above
Which of the following best describes the term, hardiness?
The ability of a plant to withstand high temperatures.
The ability of a plant to withstand cold temperatures.
The ability of a soil to retain water.
The ease with which air and water move through the soil profile.
Which of the following is an example of a SDP (Short - Day Plant)?
Poinsettias
Pansies
Tulips
Pumpkins
Which nutrient is responsible for root growth and development?
Nitrogen (N)
Phosphorus (P)
Calcium (Ca)
Potassiium (K)
pH is measured on a scale of 0 - 14. What is the ideal pH range for most plants?
5.0 - 5.8
6.0 - 7.0
6.4 - 7.8
7.2 - 8.5
All of the following are symptoms of plants receiving less than optimal sunlight EXCEPT __________________.
Compact growth
Dull colored leaves
Slow growing plants
Stretching
How does soil pH impact plant growth and development?
It determines the availability of plant nutrients.
It impacts soil permeability.
It determines the water - holding capacity of the soil.
All of the above
Based on the soil test report to the right, is a lime application needed?
Yes
No
If lime is applied, which of the following macronutrients is also applied?
Nitrogen (N)
Potassium (K)
Calcium (Ca)
Manganese (Mn)
Carbon dioxide is needed for which plant process?
Respiration
Transpiration
Photosynthesis
All of the above
All of the following are examples of how blue light impacts plant growth EXCEPT ____________________________.
Reduces stem length
Promotes seed germination
Promotes stem strength
Increases branching
Which nutrient is responsible for root growth and development?
Nitrogen (N)
Phosphorus (P)
Calcium (Ca)
Potassium (K)
Which nutrient is responsible for promoting vegetative growth (leaves / stems)?
Nitrogen (N)
Potassium (K)
Calcium (Ca)
Phosphorus (P)
What tool do plant producers across America use to determine which plants are heat tolerant for their zone?
AHS Plant Heat Zone Map
USDA Plant Hardiness Zone Map
Southern Landscapes 7th Ed.
Great Expectations
Which of the following best describes the term, macronutrient?
Nutrients that are chiefly responsible for vegetative growth and development.
Nutrients that are needed in small quantities.
Nutrients that are responsible for promoting stem elongation and stem length.
Nutrients that are needed in large quantities.
The three numbers on the front of a fertilizer bag represent the fertilizer's analysis. What does a fertilizer analysis tell the purchaser?
The percentage of N, P, and K found in the fertilizer's composition.
The percentage of organic matter, mineral matter, and perlite found in a fertilizer.
The percentage of Ca, Mg, and S found in the fertilizer's composition.
The ratio of N to K found in the fertilizer.
Which hormone is responsible for initiating cell division in the presence of auxins?
Gibberellins
Abscisic Acid
Auxins
Cytokinins
Which plant nutrient is responsible for developing a plant's cold hardiness?
Nitrogen (N)
Manganese (Mn)
Potassium (K)
Sulfur (S)
If lime is applied, which of the following macronutrients is also applied?
Nitrogen (N)
Potassium (K)
Calcium (Ca)
Manganese (Mn)
Which plant nutrient is responsible for strengthening the cell wall?
Calcium (Ca)
Sulfur (S)
Boron (B)
Iron (Fe)
Which plant nutrient is responsible for the formation of chlorophyll and the quick "greening up" effect on plants?
Magnesium (Mg)
Iron (Fe)
Sulfur (S)
Potassium (K)
Which soil amendment is applied to raise the soil pH?
Gypsum
Sulfuric acid
Lime
Fertilizer
Clemson Extension recommends using a 22 - 23 - 4 fertilizer for your newly established Fescue lawn. What does the number 23 represent?
The percentage of Potassium (K) found in the bag of fertilizer.
The lbs of Nitrogen (N) found in the bag of fertilizer.
The percentage of Phosphorus (P) found in the bag of fertilizer.
The amount of gluten - free noxious weeds in the bag of fertilizer.
pH is measured on a scale of 0 to 14. What is the ideal pH range for most plants?
5.0 - 5.8
6.0 - 7.0
6.4 - 7.7
7.2 - 8.5
Which of the following best describes the term, permeability?
The ease with which air and water move through the soil profile.
The ability of the soil to retain water.
The ease with which a soil may be tilled after a rain event.
The ability of the soil to retain nutrients.
A plant deficient in Nitrogen (N) will display which of the following symptoms?
Compact growth
Purplish - reddish colors on the leaf margin
Chlorosis (yellowing)
All of the above
A plant deficient in Phosphorus (P) will display which of the following symptoms?
A purplish - reddish color on the leaves.
Will display stretching
Chlorosis (yellowing)
Scorching on the leaf blade.
A plant deficient in Potassium (K) will display which of the following symptoms?
Purplish - reddish color on leaf blade.
Chlorosis on the leaf blade.
Scorching on the leaf blade and browning on the leaf margin.
All of the following.
Which plant hormones hastens the ripening of fruit?
Abscisic Acid
Auxin
Ethylene
Gibberellins
Which hormone is responsible for inhibiting growth and suppressing bud growth?
Cytokinins
Auxins
Gibberellins
Abscisic Acid
The mathematical difference between the daytime and nighttime temperatures is known as ____________.
DIF
Inhibition
Translocation
Heat Index
The chemical most often used commercially for rooting cuttings is ________________________.
IBA (Indolebutyric acid)
IAA (Indoleacetic acid)
NAA (Napthaleneacetic acid)
Talc
Which plant nutrient increases chlorophyll concentration, leading to increased photosynthetic rates?
Calcium (Ca)
Magnesium (Mg)
Manganese (Mn)
Sulfur (S)
Which of the following best describes a DNP (Day - Neutral Plant)?
A plant whose flowering response is not impacted by light intensity.
A plant that flowers when it experiences day light conditions of greater than 12 hours.
A plant that flowers when it experiences day light conditions less than 12 hours.
A plant that flowers under high temperature conditions.
