Title: Quiz 5 Soybeans
Course: MASTER-AGRI-1131-WB-Fairley > Section: Module 5 - Soybeans

The exam contains 20 multiple choices and true/false questions. Students will have one attempt and a 25 minute time limit to complete the quiz.

Q: How many reproductive stages are there?
- 5
- 7
- 10
- 9
A: 9
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Ideal seed moisture content at harvest and for storage is ____________.
- 10%
- 13%
- 14%
- 15%
A: 13%
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Physiological maturity occurs when the seed (and pod) turns ___________.
- White
- Brown
- Green
- Yellow
A: Yellow
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: What is the minimum temperature that soybeans will emerge?
- 45 degrees
- 55 degrees
- 50 degrees
- 65 degrees
A: 50 degrees
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Soybean emergence is more uniform when the soil temperature is ______ degrees or above.
- 65
- 75
- 55
- 70
A: 65
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: What is the name of the spheres located on the roots that fix Nitrogen for the soybean plant?
- Axillary Buds
- Petiole
- Tap Root
- Nodules
A: Nodules
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Soybeans that finish most of its vegetative growth before flowering begins are characterized as:
- Indeterminate
- Determinate
- None of the answers are correct
A: Determinate
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Soybeans that continue vegetative growth after flowering begins are characterized as:
- Indeterminate
- Determinate
- None of the answers are correct.
A: Indeterminate
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Soybeans are grouped for maturity from _____ earliest to _____ latest.

Fill in the blank.
- IX-0
- IV-00
- 00-IX
- IX-00
A: 00-IX
If right: Your answer is correct.
If wrong: Your answer is incorrect.

Q: Soybean seeds begin germination by absorbing 50% of its weight in water.
- True
- False
A: True

Q: The first leaves to emerge on a soybean plant are the Cotyledons.
- True
- False
A: True

Q: If the plant is broken off below the cotyledon node, the plant will recover.
- True
- False
A: False

Q: The unifoliate leaf scars are located just above the two opposite scars that mark the cotyledonary node.
- True
- False
A: True

Q: 50% defoliation at R2 reduces yield about 10 percent.
- True
- False
A: False

Q: Yield reductions at R4 result mainly from fewer pods per plant.
- True
- False
A: True

Q: Following VC, the V stages are numbered according to the uppermost fully developed trifoliate leaf node.
- True
- False
A: True

Q: A trifoliate can be counted when the leaflet edges are touching.
- True
- False
A: False

Q: When counting the vegetative stages of a soybean plant you count trifoliates.
- True
- False
A: True

Q: When staging a soybean field, each specific V or R stage is defined when 70% or more of the plants in the field are in or beyond that stage.
- True
- False
A: False

Q: The upper junction between the main stem and a leaf petiole is called an axil.
- True
- False
A: True