Plant Growth Regulators and Fungicides Alters Growth Characteristics in Catharanthus roseus; Comparative Study

Abstract: The effect of different plant growth regulators (PGR) and fungicide treatments on the growth characteristics of Catharanthus roseus (L.) G. Don. (Madagascar periwinkle, Family: Apocynaceae) was investigated in the present study. The PGR used were paclobutrazol (PBZ), gibberellic acid (GA) and3 Pseudomonas fluorescens elicitors (PF Elicitors) by soil drenching on 38, 53, 68 and 83 days after planting (DAP) by soil drenching. The plants were taken randomly on 45, 60, 75 and 90 DAP and used for estimating the growth and anatomical characteristics changes. The total height of the plant increased with the age in the control, gibberellic acid and P. fluorescens treated Catharanthus roseus plants, but it decreased significantly under PBZ treatments. Our results have good significance, as these increases the secondary metabolites of this traditional medicinal plant