Growing points present at only

The growth of the plant body takes place by :

Avena coleoptile test to find out the quantity of growth promoting hormones was discovered by –

Which process is not directly affected by auxin ?

Auxin inhibits the growth of –

Which of the following is not naturally occurring plant hormone?

“Foolish seedling’’ disease of rice led to the discovery of

Leaf fall occurs when the content of –

Substance which originate at the tip of stem and control growth are –

Which of the growth substance act as a stimulant during nodule formation in Leguminous plant ?