Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 30, Problem 40CTQ
Owners and managers of plant nurseries have to plan lighting schedules lor a long-day plant that will flower in February. What lighting periods will be most effective? What color of light should be chosen?
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Owners and managers of plant nurseries have to plan lighting schedules for a long-day plant that will flower in February. What lighting periods will be most effective? What color of light should be chosen?
A long day plant is given a long night, and is interrupted by a light pulse in the middle of the night. Which quality of the light pulse will most likely prevent flowering?
Select one:
a.
UV light
b.
green light
c.
red light
d.
far-red light
We know that short-day plants do not really need short days, but actually long nights. Describe the type of treatment that proves this. Is some kind of light given during the night or some period of darkness given during the day?
Chapter 30 Solutions
Biology 2e
Ch. 30 - Figure 30.7 Which layers of the stem are made of...Ch. 30 - Figure 30.32 Positive water potential is placed on...Ch. 30 - Figure 30.34 Which of the following statements is...Ch. 30 - Plant regions of continuous growth are made up of...Ch. 30 - Which of the following is the major site of...Ch. 30 - Stem regions at which leaves are attached are...Ch. 30 - Which of the following cell types forms most of...Ch. 30 - Tracheids, vessel elements, sieve-tube cells, and...Ch. 30 - The primary growth of a plant is due to the action...Ch. 30 - Which of the following is an example of secondary...
Ch. 30 - Secondary growth in stems is usually seen in...Ch. 30 - Roots that enable a plant to grow on another plant...Ch. 30 - The forces selective uptake of_____ minerals in...Ch. 30 - Newly-formed root cells begin to form different...Ch. 30 - The stalk of a leaf is known as the petiole lamina...Ch. 30 - Leaflets are a characteristic of leaves ______ ....Ch. 30 - Cells of Thecontain chloroplasts epidermis...Ch. 30 - Which of the following is most likely to be found...Ch. 30 - When stomata open, what occurs?______ Water vapor...Ch. 30 - Which cells are responsible for the movement of...Ch. 30 - The main photoreceptor that triggers phototropism...Ch. 30 - Phytochrome is a plant pigment protein that...Ch. 30 - A mutant plant has roots that grow in all...Ch. 30 - After buying green bananas or unripe avocadoes,...Ch. 30 - A decrease in the level of which hormone releases...Ch. 30 - A seedling germinating under a stone grows at an...Ch. 30 - What type of meristem is found only in monocots,...Ch. 30 - Which plant part is responsible for transporting...Ch. 30 - Describe the roles played by stomata and guard...Ch. 30 - Compare the structure and function of xylem to...Ch. 30 - Explain the role of the cork cambium in woody...Ch. 30 - What is the function of lenticels?Ch. 30 - Besides the age of a tree, what additional...Ch. 30 - Give two examples of modified stems and explain...Ch. 30 - Compare a tap root system with a fibrous root...Ch. 30 - What might happen to a root if the pericycle...Ch. 30 - How do dicots differ from monocots in terms of...Ch. 30 - Describe an example of a plant with leaves that...Ch. 30 - The process of bulk flow transports fluids in a...Ch. 30 - Owners and managers of plant nurseries have to...Ch. 30 - What are the major benefits of gravitropism for a...Ch. 30 - Fruit and vegetable storage facilities are usually...Ch. 30 - Stomata close in response to bacterial infection....
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- Light is often the most important environmental factor for inducing a plant to flower, but it is not the intensity of light. What it the important aspect?arrow_forwardWhat would happen if you gave these plants a brief exposure to darkness in the middle of the daytime?arrow_forwardIf a long-day plant has a critical night length of 9 hours, which 24-hour cycle would prevent flowering? (A) 16 hours light/8 hours dark (B) 14 hours light/10 hours dark (C) 4 hours light/8 hours dark/4 hours light/8 hours dark (D) 8 hours light/8 hours dark/light flash/8 hours darkarrow_forward
- In the Philippines, owners and managers of plant nurseries have to plan lighting schedules for a long-day plant (LDP) with a critical night length of 10 hours that will flower in December. What lighting periods and color of light enrichment will be most effective for flowering of the said LDP? A. Light periods of 15 hours with light enriched in the red range of the spectrum B. Dark periods of 11 hours with light enriched in the red range of the spectrum C. Light periods of 14 hours with light enriched in the far-red range of the spectrum D. Dark periods of 9 hours with light enriched in the far-red range of the spectrum E. Light periods of 13 hours with light enriched in the red range of the spectrum F. Dark periods of 10 hours with light enriched in the far-red range of the spectrumarrow_forwardPlant development is influenced by: A. quality of light only B. quality and quantity of light C. quality and duration of light D. quality, quantity and duration of lightarrow_forward‘Both a short day plant and a long day plant can produce flower simultaneously in a given place’. Explain with suitable illustration.arrow_forward
- What is the phenomenon wherein the plant grows toward the unidirectional light? Photoperiodism Phototropism Thigmonasty Photonastyarrow_forwardExplain giving reasons the bending of the shoot tip of a plant towards light source coming from one side of the plant.arrow_forwardWhat do you mean by wilting? State a condition for a plant to wilt.arrow_forward
- Gardeners sometimes plant clover between productive growing seasons. Why would this practice be beneficial ?arrow_forwardPlants growing beneath the canopy of an Amazonian forest receive more ____, which ____ stem elongation Select one: a. far red light, prevents b. blue light, prevents c. far red light, promotes d. red light, prevents e. red light, promotesarrow_forwardIf you exposed seeds to a series of red light versus far-red light treatments, which of the following exposure treatments would result in seed germination? a. Red; far-red b. Far-red; red c. Red; far-red; red; far-red; red; far-red; red; far-red d. Both a and c are correct.arrow_forward
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