Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 36.4, Problem 2R
Summary Introduction
To review:
The effect of red light and far-red light on seed germination.
Introduction:
Light is an important factor for the growth of plant. It is required for various processes like photosynthesis, seed germination (photoblasty), and flowering. The wavelength of light reaching the plant is sensed by photoreceptors, which in consequence signal the plant to carry out these physiological processes.
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Life: The Science of Biology
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- Does red color generally attract birds and so facilitate pollination in a wide range of flowers?arrow_forwardWhat major factor controls the photomorphoses of germinated seeds? Explain briefly its role.arrow_forwardWhy do some seeds undergo a period of dormancy, and how do they break dormancy?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_forwardDoes light promote or inhibit germination of onion seeds?arrow_forwardHow does moisture and the presence or absence of light affect seed germination?arrow_forward
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- Which hormones are involved in each of the following physiological processes: (1) seed germination, (2) stem elongation, (3) fruit ripening, (4) leaf abscission, and (5) seed dormancy?arrow_forwardMany flowers have both anthers and pistils. What prevents self-pollination and later self-fertilization?arrow_forward
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