Tissue culture studies on the nodal explants of guava

Nodal sections from the sprouts of field grown trees and young glass house grown plants of guava have been used as explants. Nodal sections were inoculated on MS medium supplemented with various concentrations of BAP in the range of 1–5 mg/litre. Nodal sections from young plants showed multiple shoot formation with 1 mg/litre BAP alone after two weeks of incubation, whereas nodal-sections from adult trees showed micropropagation with 4 mg/litre BAP after three weeks of incubation. Use of 0.5 per cent polyvinyl polypyrolidone enhanced the efficiency of micropropagation from nodal explants.