Lolu hlobo lomanyolo we-foliar luqukethe izinto ezilawula ukukhula kwezitshalo, njenge-auxin, amahomoni nezinye izithako. Umsebenzi wawo omkhulu ukulawula ukukhula nokukhula kwezitshalo. Ilungele ukusetshenziswa ezigabeni zokuqala naphakathi zokukhula kwezitshalo.

Ukuhlanjululwa kwe-Ethephon: I-Ethephon iwuketshezi olugxilile, oludinga ukuhlanjululwa ngokufanele ngokwezitshalo nezinjongo ezahlukene ngaphambi kokusetshenziswa. Ngokuvamile, ukuhlushwa kwezikhathi eziyi-1000 ~ 2000 kungahlangabezana nezidingo ezahlukahlukene.

Izilawuli zokukhula kwezitshalo zihlanganisa izinhlobo eziningi, ngasinye sinendima yaso ehlukile kanye nobubanzi bokusebenza. Okulandelayo ezinye izilawuli zokukhula kwezitshalo kanye nezici zazo ezibhekwa kabanzi njengezilula ukuzisebenzisa futhi zisebenza kahle:

Izilawuli zokukhula kwezitshalo (ama-PGRs) ziyizinhlanganisela zamakhemikhali ezenziwe ngokuzenzisa ezinemiphumela efanayo yezemvelo kanye nezakhiwo zamakhemikhali ezifanayo njengamahomoni ezitshalo angapheli. Isilawuli sokukhula kwezitshalo siyingxenye ebanzi yezibulala-zinambuzane futhi siyikilasi lezibulala-zinambuzane ezilawula ukukhula nokuthuthuka kwezitshalo, okuhlanganisa izinhlanganisela zokwenziwa ezifana namahomoni ezitshalo zemvelo namahomoni akhishwa ngokuqondile ezintweni eziphilayo.