Which phytohormone is useful for the formation of interfascicular cambium during the secondary growth of plants?

The chief role of cytokinin is

What is the primary function of cytokinin?

Which hormone increases shoot growth in callus culture?

Farmers in a particular region observed that during the cultivation of pulse crops,the leaves become yellow and underdeveloped,leading to a decrease in yield. Which treatment can result in higher seed production?

The cut flowers and vegetables can be kept fresh for a long period by this plant hormone: