Role of Plant Growth Regulators in Mulberry

Mulberry (Morus sp.) is the deep rooted, perennial crop is one of the economically important trees grown in Asian country which is sole food for silkworm growth and development. Plant growth regulators are organic compounds synthesized in specified plant parts in small quantity and are transported to the place of requirement leading to a change in physiological responses. The commercially available plant growth regulators are auxins, gibberellins, cytokinins, abscisic acid and ethylene. About 80% rooting was obtained from shoots cultured on the MS supplemented with NAA (1.0 mg/l) (Mohammad Anis et al., 2003). Regeneration and production of multiple shoots were achieved from nodal segments with auxillary buds of a field grown mature tree of Morus nigra L (Das et.al., 1995).