Effect of gibberellic acid on growth and flowering of Henckelia
humboldtianus Gardner (Ceylon Rock Primrose)
H. Sumanasiria, S.A. Krishnarajahb, J.P. Eeswaraa,∗
a Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Sri Lanka
b Royal Botanic Garden, Peradeniya, Sri Lanka