Ukuxutshwa kwezilawuli zokukhula kwezitshalo kanye nama-fungicides kuncike endleleni yokusebenza kwama-ejenti, ukuqhutshwa kwesistimu, ukuhambisana kwezinto zokulawula, nokuthi ngabe ukuphikisa kuzokwenzeka ngemva kokuxuba. Kwezinye izimo, njengokufeza inhloso yokuvimbela izifo noma ukuthuthukisa ukumelana nezifo zezitshalo, ukukhuthaza ukukhula kwezitshalo noma ukutshala izithombo ezinamandla.

I-Naphthalene acetic acid (NAA) iyisilawuli sezitshalo ze-auxin. Ingena emzimbeni wesitshalo ngamahlamvu, i-epidermis enethenda kanye nembewu, futhi ithuthelwa ezingxenyeni ngokukhula okunamandla (amaphuzu okukhula, izitho ezincane, izimbali noma izithelo) ngokugeleza kwezakhi, okugqugquzela kakhulu ukuthuthukiswa kwethiphu yesistimu yezimpande (i-rooting powder) , ukukhuthaza ukuqhakaza, ukuvimbela izimbali nezithelo eziwayo, ukwakha izithelo ezingenambewu, ukukhuthaza ukuvuthwa ngaphambi kwesikhathi, ukwandisa ukukhiqizwa, njll. Kungathuthukisa futhi ikhono lesitshalo lokumelana nesomiso, amakhaza, izifo, usawoti kanye ne-alkali, nomoya owomile oshisayo.

I-Indole-3-butyric acid (IBA) isilawuli sokukhula kwezitshalo esingakhuthaza ukukhula nokuthuthuka kwezitshalo, senze izitshalo ziqhakaze futhi zibe namandla, futhi sithuthukise ukuvikeleka kwezitshalo nokumelana nengcindezi.

I-Brassinolide (BRs) iyisilawuli esisebenzayo sokukhula kwezitshalo esisetshenziselwa ukudambisa ukulimala kwezibulala-zinambuzane. I-Brassinolide (BRs) ingasiza ngempumelelo izitshalo ukuthi ziphinde zikhule ngendlela evamile, zithuthukise ngokushesha ikhwalithi yemikhiqizo yezolimo futhi zandise isivuno sezitshalo, ikakhulukazi ekudambiseni umonakalo wokubulala ukhula. Ingasheshisa ukwakheka kwama-amino acid emzimbeni, yenze ama-amino acid alahlekile ngenxa yokulimala kwezibulala-zinambuzane, futhi ihlangabezane nezidingo zokukhula kwezitshalo, ngaleyo ndlela inciphise ukulimala kwezibulala-zinambuzane.