I. More female flowers in cucumber

II. α-amylase production is barley grain

III. Acceleration of fruit ripening in tomato

IV. Delayed in sprouting in potato tubers

From the given effects find, out the effects of ethylene and choose the correct option accordingly

Surface area of roots by promoting roots growth and root hair formation is increased by

Which of the PGR induces parthenocarpy in tomatoes?

The phytohormone that helps in germination of seed, is

Which hormone is primarily responsible for fruit ripening?

Gibberellins are known to promote:

Indentify two of the following phytohormones, which regulate the stomatal movements?

     I.IAA                                II.  $G{A_3}$

III. Zeatin IV. ABA

Which plant growth regulator is applied to sugarcane crops to stimulate stem elongation and enhance sugar yield?

Which gaseous plant hormone promotes ripening of fruits like tomatoes and bananas?

The avena curvature is used for bioassay of:

Which plant growth regulator is responsible for triple response?