Trinexapac-ethyl ndi ya cyclohexanedione plant growth regulator, gibberellins biosynthesis inhibitor, yomwe imayendetsa kukula kwamphamvu kwa zomera pochepetsa zomwe zili mu gibberellins. Trinexapac-ethyl imatha kutengeka mwachangu ndikuyendetsedwa ndi tsinde ndi masamba, ndipo imagwira ntchito yoletsa malo ogona pochepetsa kutalika kwa mbewu, kukulitsa mphamvu ya tsinde, kulimbikitsa kukula kwa mizu yachiwiri, ndikupanga mizu yokhazikika bwino.

Paclobutrazol ndi ntchito yaulimi yomwe imatha kufooketsa mwayi wakukula kwa zomera. Imatha kuyamwa ndi mizu ya mbewu ndi masamba, kuwongolera kagawidwe ka michere ya mbewu, kuchepetsa kukula kwa mbewu, kulepheretsa kukula kwa nsonga ndi kutalika kwa tsinde, ndikufupikitsa mtunda wa internode. Nthawi yomweyo, imathandizira kusiyanitsa kwamaluwa, imawonjezera kuchuluka kwa maluwa, imawonjezera kuchuluka kwa zipatso, imathandizira kugawanika kwa maselo.

Kusakanikirana kwa zowongolera zakukula kwa zomera ndi fungicides kumadalira momwe zimagwirira ntchito, machitidwe adongosolo, kukwanirana kwa zinthu zomwe zimayendetsedwa, komanso ngati kusagwirizana kudzachitika pambuyo posakanikirana. Nthawi zina, monga kukwaniritsa cholinga chopewera matenda kapena kukulitsa kukana matenda a mbewu, kulimbikitsa kukula kwa mbewu kapena kulima mbande zolimba.

Naphthalene acetic acid (NAA) ndi chowongolera chomera cha auxin. Imalowa m'thupi la chomera kudzera m'masamba, epidermis yanthete ndi njere, ndipo imatumizidwa kumadera omwe amakula mwamphamvu (malo okulirapo, ziwalo zazing'ono, maluwa kapena zipatso) ndikuyenda kwa michere, kulimbikitsa kwambiri kukula kwa mizu (poda ya mizu) , kuchititsa maluwa, kuteteza maluwa ndi zipatso kugwa, kupanga zipatso zopanda mbewu, kulimbikitsa kukhwima msanga, kuchulukitsa kupanga, ndi zina zotero. Zingathenso kuwonjezera mphamvu ya zomera kukana chilala, kuzizira, matenda, mchere ndi alkali, ndi mphepo yotentha yowuma.