Pele, ts'ebeliso ea mobu e ka khothalletsa li-photosynthesis. Urea ka boeona e qhibiliha habonolo metsing, 'me ho nosetsa kapa pula e tla lebisa tahlehelong ea naetrojene. Ho eketsa Sodium Nitrophenolates e na le boits'oaro bo botle, bo ka khothalletsang likepe tsa lijalo, ho joalo, ho potlakisitse ho amoheloa ha naetrojene.

Acico acid e hlohlelletsa kholo ea semela: acid buyric anyric a khothalletsang kholo ea semela ka ho fanoa ka lihormone tsa lijalo, tse amang mesebetsi ea sehlopha sa sele. Indole buyric acid e ka hlakoloa 'me e fanyehiloe makhasi ho khothaletsa kholo ea eona

Gibberellic acid (Ga3): Ts'ebetso ea mantlha ea GA3 e tlala metso, makhasi le meroho ea libuka le meroho, le ho thehwa makhesi.

Foromo ena e ntle ea litholoana e thehiloe mochineng o phethahetseng oa Gibberellic acid (Ga3) le ferchlorfuron. Ford forFenuron e rorisoa haholo ka bokhoni ba eona ba ho khothaletsa karohano ea sele haholo, phapang le keketseho, le sebopeho sa setjha. Ketsahalo ea eona ea likokoana-hloko ke makhetlo a 10 ho 100 ea ho feta ea 6-beyylaminicaponine (6-Ba)