Effect The Different Concentrations Of IBA Indole Butyric Acid On Rooting Plantlets Of Wild Apple (Malus trilobata Lab.)

This Research Deals With Studying Of Five Concentrations in IBA Auxin (0.25 – 0.5 – 0.75 – 1 – 2 mg\ l ) And Control Medium For Rooted Plantlets To Wild Apple (Malus trilobata Lab.) By Plantlets Cultured It's Length (1.5-2) cm On Half- Strength Murashige And Skoog Medium(½MS), Then Making Rooted Percentile And Mean Of Number And Length Of Roots, The Result Was: The First Treatments (0.25 mg\l) Were Significantly Better Than Other Treatments And Control For About Rooted Percentile (64%) And Mean Of Number Roots (16 Roots), The Third Treatments (0.75 mg\l) Were Significantly Better Than Other Treatments For About Mean Of Length Of Roots(21.03)cm.