Plant Growth and Development

The bioassay of auxin is

The bioassay of auxin is Options (a) Avena curvature test (b) callus formation (c) culture of fungus (d) seed dormancy…

Tendrils exhibit

Tendrils exhibit Options (a) thigmotropism (b) sismonasty (c) heliotropism (d) diageotropism Correct Answer: thigmotropismExplanation:Thigmotropism is a directional curvature movement of…

Sleeping movements in some plants is called

Sleeping movements in some plants is called Options (a) seismonasty (b) nictynasty (c) photonasty (d) thermonasty Correct Answer: nictynastyExplanation:Sleep movement…

Sleep movements of leaves in some plants are due to

Sleep movements of leaves in some plants are due to Options (a) excess of respiration (b) leaves stop photosynthesis (c)…

Rhizocalin is a additional hormonal substance which is secreted by

Rhizocalin is a additional hormonal substance which is secreted by Options (a) Cotyledons (b) Roots (c) Leaves (d) Stem Correct…

Response to contact is known as

Response to contact is known as Options (a) galvanotaxis (b) thigmotaxis (c) thermotaxis (d) rheotaxis Correct Answer: thigmotaxisExplanation:Thigmotropism is a…

Removal of seed coat in dormant seeds by mechanical methods is called

Removal of seed coat, in dormant seeds, by mechanical methods is called Options (a) separation (b) emasculation (c) venalization (d)…

Pigment associated with physiological function

Pigment associated with physiological function Options (a) phytochrome (b) anthocyanin (c) chlorophyll (d) carotene Correct Answer: phytochromeExplanation:Phytochrome is a pigment…

Phytochrome in plants is sensitive to

Phytochrome in plants is sensitive to Options (a) green light (b) blue light (c) red light (d) red and far…

Photoperiodic stimulus is received by

Photoperiodic stimulus is received by Options (a) Leaves (b) Buds (c) Meristem (d) Flowers Correct Answer: LeavesExplanation:Photoperiodic stimulus is perceived…