Izilawuli zokukhula kwezitshalo ezikhuthaza ukuvuthwa kusenesikhathi kwezitshalo ikakhulukazi zihlanganisa lezi zinhlobo ezilandelayo:I-Gibberellic Acid (GA3)‌: I-Gibberellic Acid iyisilawuli sokukhula kwezitshalo esine-spectrum esibanzi esingakhuthaza ukukhula nokuthuthuka kwezitshalo, sizenze zisheshe zivuthwe, andise isivuno, futhi uthuthukise ikhwalithi. Ilungele izitshalo ezinjengokotini, utamatisi, izihlahla zezithelo, amazambane, ukolweni, ubhontshisi wesoya, ugwayi nelayisi.

Izimpande zezitshalo ngesinye sezigaba ezibalulekile zokukhula kwezitshalo futhi zibaluleke kakhulu ekukhuleni, ekuthuthukisweni nasekuzalaneni kwezitshalo. Ngakho-ke, indlela yokukhuthaza ukuqothulwa kwezitshalo kuyindaba ebalulekile ekutshalweni kwezitshalo. Lesi sihloko sizoxoxa ngendlela yokukhuthaza ukuqothulwa kwezitshalo kusukela ezicini zezimo zokudla okunomsoco, izici zemvelo, nezindlela zokwelashwa.

I-1-Naphthyl Acetic Acid ingashukumisa ukuhlukana kwamaseli kanye nokwehlukana kwezicubu, ikhulise ukuhlelwa kwesithelo, ivimbele ukwehla kwezithelo, futhi yandise isivuno.Ngesikhathi sokuqhakaza kukatamatisi, fafaza izimbali ngesixazululo samanzi esingu-1-Naphthyl Acetic Acid ekuhlanganiseni okuphumelelayo kwe-10- 12.5 mg/kg;

I-Gibberellic Acid (GA3) iyisilawuli sokukhula kwezitshalo esinemiphumela eminingi yezemvelo njengokukhuthaza ukukhula nokuthuthuka kwezitshalo, ukwandisa isivuno kanye nokwenza ngcono ikhwalithi. Emkhiqizweni wezolimo, ukusetshenziswa kwe-Gibberellic Acid (GA3) kunomthelela obalulekile emphumeleni wako. Nansi eminye imininingwane mayelana nokuqukethwe nokusetshenziswa kwe-Gibberellic Acid (GA3):