Japanese scientists applied transgenic technology to plant flowering genes in morning glory, resulting in the development of new morning glory plants with a three-fold increase in flowering time, thus finding new ways to extend flowering time. After the female flower is pollinated, ethylene gas is produced and the flower begins to fall off. Researchers at the Japan Institute of Agricultural Biological Resources found that the gene called "PETSPL1" is associated with the formation of stamens, and suppressing the action of this gene will increase the number of stamens and decrease the number of pistils. So they applied transgenic technology to plant this gene into morning glory cells. The results showed that the pistil was greatly reduced, the number of ovules was reduced from 300 to 20 at a time, and the stamens produced similar organs to the stamens. The number also increased from 5 to 8, which extended the flowering time of morning glory that should have begun to fade in two days by six days. Researchers believe that the application of this technology may also extend the flowering time of other flowers, which will bring new business opportunities for flower producers.