A team of scientists at the Hebrew University of Jerusalem has found a way to genetically enhance the scent of flowers and implant a scent in those that don't have one.
[...] In research that was published recently in the Plant Biotechnology Journal, Prof. Vainstein and his research assistant Michal Moyal Ben-Tzvi succeeded, together with other researchers, to find a way of enhancing the scent of a flower by ten-fold and cause it to emit a scent during day and night - irrespective of the natural rhythm of scent production .
— From Genetically enhancing the scent of flowers at Seedquest.
