Hort 1 - Unit 4 Test - Updated

Which type of plant can flower under a wide range of day lengths?

• Long Day

• Day Neutral

• All types of plants

• Short Day

What is the recommended method for irrigation to conserve water?

• Flood irrigation

• Hand writing

• Sprinkler irrigation

• Drip irrigation

What is the term for a plant that is limp because it does not have enough moisture?

• Turgid

• Wilted

• Dehydrated

• Saturated

What is the ideal temperature range for most horticultural plants

• 50F to 85F

• 32F to 50F

• 85F to 100F

• 100F to 120F

What is the recommended method for watering plants?

• Watering lightly and frequently

• Watering deeply and infrequently

• Watering only when the plant is wilted

• Watering only when the soil is dry

Which soil horizon is the most important for plant growth?

• C

• O

• A

• B

Which soil structure is considered the best for growing crops?

• Blocky

• Platy

• Granular

• Columnar

What is the ideal pH range for most horticultural plants?

• 1-3

• 4.5-6

• 5.5-7

• 7-9

Which of the following is NOT a way to improve soil structure?

• Employing no-till practices

• Keeping the soil covered with organic matter

• Using heavy equipment on the soil

• Adding organic matter

What is the role of organic matter in soil formation?

• It helps to regulate soil temperature

• It contributes to the physical, chemical, and biological properties of soil

• It is the main source of nutrients for plants

• It is responsible for the breakdown of parent material