IN VITRO MANIPULATION OF 2,4 D FOR CALLUS INDUCTION AND ITS SUBSEQUENT REGENERATION IN SELECTED WHEAT AND RICE CULTIVARS HAMID RASHID AZRA QURAISHI DOI: https://doi.org/10.28941/pjwsr.v3i1.57 PDF Published 1990-03-01 Issue Year 1990, Volume 3 , Issue 1 Section Articles