Whether optimum pollen germination and tube length attained in the same growth medium (sucrose + 2,4-D) by five cultivars of the Apocynaceae : Further Evidence of a Criticism of Banerji and Gangulee (1937), Brewbaker and Kwack’s (1963), Sudhakaran (1967-Ph.D.Thesis), Dharurkar (1971 – Ph.D. Thesis), Nair, Nambudiri and Thomas (1973), Berg (1973), Brandt (1974), Vick and Bevan (1976), Rasmussan (1977), Navara, Horvath and Kaleta (1978), Mhatre (1980 – Ph.D. Thesis), Mhatre, Chaphekar, Ramani Rao, Patil, Haldar (1980), Shetye (1982 – Ph.D. Thesis) and Giridhar (1984 – Ph.D. Thesis) A Critical Review