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- #National Eligibility Cum Entrance Test
- #Plant Physiology
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Photoperiodic stimulus is perceived by
Option: 1
Leaves
Option: 2
Roots
Option: 3
Flowers
Option: 4
Stem
Answers (1)
- Phytochromes are the chemicals which perceive the photoperiodic stimulus.
- The wavelength of light is perceived by the leaves.
- A defoliated plant does not flower.
- A single leaf is sufficient to stimulate the flowering.
- Phytochrome is present in roots, coleoptiles, stems, hypocotyls, cotyledons, petioles, leaf blades, vegetative buds, flower tissues, seeds and developing fruits of higher plants.
Hence, Photoperiodic stimulus is perceived by leaves
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