how many roots would we expect when we place cutting plant in the solution contain gibbrellic acid and auxin?

Answer 1

There is no set number of roots one can expect from any given plant unless the plant is single-taproot type of plant. What plant are you using? Look up the effects of gibberellic acid and auxin, both are growth hormones in plants with slightly different effects. Auxin promotes root growth and giberellic acid promotes growth in general. However too much GA can also inhibit growth so it also depends on the concentration of the hormone solution.

The answer you are probably looking for though, is there will be increased root growth. How many? Again, without knowing the plant and concentration of the solution, there is no way to hazard a guess.

Answer 2

Your question is structured oddly but I'm going to take the route that you wonder which hormone would produce more roots, gibbrellic acid or auxin.

Gibbrellic acid would produce more roots and growth than auxin. Auxin is more involved with the elongation of plant cells and is repressed by bright light.

Answer 3

Hopeful