Effect of herbicide (basalin EC) on pollen germination and tube growth of twelve hours stored pollen of five cultivars of Apocynaceae: Fur­ ther evidence of a criticism of Banerji and Gangulee (1937), Sudhakaran (1967-Ph.D.Thesis), Dharurkar (1971

Abstract

AII the  concentrations  (10 .10 -10,   1,  5,  10, 20-20-100  mg/ml)   of  basalin   EC  tried  suppressed the  germina­ tion  of  pollen  of  F-72 series  of  pink-flowered cultivar  of  Catharanthus roseus.  Basalin   EC  stimulated the germination of  pollen  and  tube  growth in  either sets  in  all  the  5 cultivars  of  the  Apocynaceae. Stored  pollen shows  the  decrease in  the  germinability of  pollen  as  well  as  tube   growth in  control   and  treated sets  in  all  the 5 cultivars   of the  Apocynaceae.