Plant Growth and Development

Opening of floral buds into flowers is a type of

Opening of floral buds into flowers, is a type of Options (a) autonomic movement of variation (b) paratonic movement of…

Movement of touch is called

Movement of touch is called Options (a) lithotropism (b) thigmotropism (c) phototropism (d) thermotropism Correct Answer: thigmotropismExplanation:Thigmotropism is a directional…

Movement of stomatal opening and closing and opening of Oxalis flower share

Movement of stomatal opening and closing and opening of Oxalis flower share the common feature that both are Options (a)…

Movement of Drosera is

Movement of Drosera is Options (a) thermonastic (b) seismonastic (c) photonastic (d) thigmonastic Correct Answer: thigmonasticExplanation:Thigmonastic movement due to touch.…

Legume seeds exhibit dormancy because of

Legume seeds exhibit dormancy because of Options (a) Undeveloped embryo (b) Hard seed coat (c) Absence of cytokinin (d) Absence…

Induction of flowering by low temperature treatment is

Induction of flowering by low temperature treatment is Options (a) photoperiodism (b) pruning (c) vernalization (d) cryobiology Correct Answer: vernalizationExplanation:Photoperiodism…

In plants the induction of flowering by low temperature treatment is called

In plants, the induction of flowering, by low temperature treatment, is called Options (a) vernalisation (b) photoperiodism (c) pruning (d)…

In germinating seed food supply is done by

In germinating seed food supply is done by Options (a) auxin (b) gibberellin (c) cytokinin (d) ethylene Correct Answer: gibberellin…

Hypothetical plant hormones are

Hypothetical plant hormones are Options (a) florigen (b) vernalin (c) florigen and vernalin (d) auxin Correct Answer: florigen and vernalin…

Hormone involved in phototropism is

Hormone involved in phototropism is Options (a) kinetin (b) IAA (c) gibberellins (d) 2,4-D Correct Answer: IAA Explanation: Phototropism is…