Formation of auxin is checked by

Avena curvature test is a bioassay for examining the activity of

What is the primary function of auxin in plants?

By hormone application,it is possible to obtain seedless fruits. In which of the following is it $NOT$ desirable to obtain seedless fruits?

You are provided with a tissue to initiate differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to induce the development of shoots and roots?

During germination,the stem grows upward and the root grows downward because: