To explain: That how differences in red to far-red light ratio arise and the impact they have on plants grown in different environments.
Introduction: The plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. The parts of plants include stem, roots, leaves, flowers, fruit, and seeds. The leaves are a part of plants that are generally green and attached to it by a stalk or stem.
Explanation of Solution
The red light is absorbed by the leaves at a greater rate than the far-red light, as the sunlight passes by the canopy. The relative amounts of far-red and red light are integrated by plant signaling through phytochrome to regulate the growth and development of plants. For example, germination of seed is inhibited as the relative amount of far-red light increases. Therefore, in a below shady canopy, germination of seeds would have less chance of survival because of reduced photosynthesis. Alternatively, the information about the reduced sunlight could signal rapid elongation of stem to get the plants closer to adequate sunlight for photosynthesis.
Want to see more full solutions like this?
Chapter 39 Solutions
1 SEM CARDLESS ACC W/RAVEN TEXT
- 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?arrow_forwarddiscuss the effects of light on plant growth.arrow_forwardLight 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_forward
- Will a long-day plant (LDP) bear flowers after it was subjected to nights interrupted by flashing red light followed by far-red light? *arrow_forwardIf you provided your shade-tolerant plants with their preferred wavelength of light, but only minimal amounts of water, which of the following would you expect to occur? increased plant growth decreased amounts of ATP being produced by the plants increased amounts of oxygen released by the plants increased growth of the plants’ leavesarrow_forwardSolar-induced fluorescence has a linear relationship with a plant's gross primary production. Explain why the relationship is linear?arrow_forward
- TRUE OR FALSE Rice varieties with erectophile leaves are more susceptible to photorespiration compared to those with planophile leaves.arrow_forwardIf a plant flowers in a controlled chamber with a daily cycle of 10 hours of light and 14 hours of darkness, is it a short-day plant? Explain.arrow_forwardA plant would be grown in a room with a heater maintaining a temperature of 35 degrees, and another plant would be grown in a room at 21 degrees. Among LED, incandescent, and CFL. What light source would be best for plants to grow indoor? Whyarrow_forward
- Why do submerged plants receive weaker illumination than exposed floating plants in a lake?arrow_forwardCompute for the Number of plants (Np) of the following given numbers.arrow_forwardPositive phototropism is one of the most obvious aspects of plant growth but the mechanism behind it required considerable experimentation to finally explain. Briefly describe how positive phototropism works, including the processes, structures and/or molecules involved.arrow_forward
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax