Effect of Fernoxone on Pollen Germination and Tube Growth of Twelve Hours Stored Pollen of Apocynaceae and Further Evidence of A Criticism of The Hypothesis of Sudhakaran (1967)

POLLEN of successive flowers (viz. F, F-24, F-48, F-72 series i.e. open flowers and the flower buds which require 24, 48, 72 hours to open respectively) of 5 cultivars of Apocynaceae e.g. red-, pink- and white-flowered cultivars of Nerium odorum Soland. and pink- and white-flowered cultivars of Catharanthus roseus (L.) G. Don.