Spraying a sugarcane field with which hormone would result in increased internode elongation and thus increased sugar production?

Which one is first to be discovered ?

It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?

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

Genetically dwarf plants can be induced to grow tall by using

The plant hormone responsible for apical dominance is

ABA was discovered during

Choose the incorrect pair.

Which hormone promotes seed dormancy?

Micropropagation is done by

Large amount of ethylene is synthesised by