Which of the following is a gaseous plant hormone?

Identify two physiological processes induced by two different phytohormones having a common precursor, which is formed due to the catalytic activity of pyruvic dehydrogenase complex. I. more female folwers in cucumber. II. a-amylase production in barley grain. III. Acceleration of fruit ripening in tomato.

IV. Delay in sprouting of potato tubers. the correct combination is

Auxin causes

The plant hormone used to destroy weeds in a field is

Gibberellins are known to promote:

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

Kinetin, a modified form a adenine was discovered from

Ethylene is unique among plant growth regulators due to its:

Plant hormones which show the antagonist effects to auxin w.r.t. apical dominance is

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

Apart from increasing stem length in sugarcane, gibberellins are also known to promote which of the following processes?