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Questions and Answers
What are the different types of roles that plant growth regulators (PGRs) can play in plant development?
What are the different types of roles that plant growth regulators (PGRs) can play in plant development?
- Positive or negative, direct or indirect
- Facilitative or inhibitory, independent or interdependent
- Cooperative or competitive, additive or subtractive
- Complementary or antagonistic, individualistic or synergistic (correct)
What is the role of extrinsic factors like temperature and light in plant growth and development?
What is the role of extrinsic factors like temperature and light in plant growth and development?
- They directly control the expression of plant growth regulators (PGRs)
- They override the effects of PGRs on plant growth and development
- They indirectly influence plant growth and development through PGRs (correct)
- They have no effect on plant growth and development
Which of the following events in a plant's life involve the interaction of multiple plant growth regulators (PGRs)?
Which of the following events in a plant's life involve the interaction of multiple plant growth regulators (PGRs)?
- Seed germination and flowering
- Dormancy in seeds/buds and abscission
- Senescence and apical dominance
- All of the above (correct)
What is the role of plant growth regulators (PGRs) in plant growth and development?
What is the role of plant growth regulators (PGRs) in plant growth and development?
What is the phenomenon of photoperiodism in plants?
What is the phenomenon of photoperiodism in plants?
Which of the following terms is used to describe plants that require exposure to light for a period exceeding a critical duration to initiate flowering?
Which of the following terms is used to describe plants that require exposure to light for a period exceeding a critical duration to initiate flowering?
Which of the following statements about plant growth regulators (PGRs) is NOT true?
Which of the following statements about plant growth regulators (PGRs) is NOT true?
What is the critical factor that determines whether a plant is classified as a long day plant or a short day plant?
What is the critical factor that determines whether a plant is classified as a long day plant or a short day plant?
Which of the following events in a plant's life is NOT mentioned in the text as being influenced by extrinsic factors like temperature and light?
Which of the following events in a plant's life is NOT mentioned in the text as being influenced by extrinsic factors like temperature and light?
What is the relationship between plant growth regulators (PGRs) and extrinsic factors like temperature and light in regulating plant growth and development?
What is the relationship between plant growth regulators (PGRs) and extrinsic factors like temperature and light in regulating plant growth and development?
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