The following statements are given about plant growth hormones:

I.Cytokinins suppress the synthesis of chlorophyll.

II.Auxins control apical dominance.

III.Gibberellins promote shoot elongation.

IV.Abscisic acid enabling seeds to withstand desiccation.

Which of the above statements are correct?

Premature fruit and leaf drop in plants can be prevented by applying:

Hormone inducing fruit ripening is

Internodal elongation just prior to flowering in beet, cabbage and in many plants with rosette habit is called

Which plant hormone is commonly employed for weed control in agricultural fields?

One hormone helps in ripening of fruits, while the other stimulates closure of stomata. These are respectively

Study the following statement

I. Cytokinins are formed primarily in roots

II. Auxin and cytokinin are antagonistic in apical dominance

III. Kinetin (a modified DNA purine) was discovered from herring sperm

IV. Zeatin is auxin

V. Zeatin was firstly extracted from herring

Choose the incorrect one

Which of the following functions is/are not the function/s of cytokinin?

I. New leaves formation

II. Chloroplast formation in leaves

III. Lateral shoot formation

IV. Adventitious shoot formation

V. Rooting on stem cuttings

Choose the correct option

Plant hormone which induce the seed germination is

In the Avena curvature test, what is measured to determine auxin concentration?

The rapid elongation of internodes and petioles in deep-water rice is an example of: