IHydroponics ifuna amanzi akumgangatho ophezulu ukulungiselela isisombululo sezondlo esilungeleleneyo ukwandisa amandla esivuno sezityalo.Ubunzima obukhulayo bokufumana amanzi akumgangatho ophezulu kukhokelele kwimfuno engxamisekileyo yokufumana indlela yokusetyenziswa kwamanzi anetyuwa ngokuzinzileyo, ngaloo ndlela kuncitshiswa impembelelo yawo engalunganga kwisivuno sesityalo kunye nomgangatho.
Ukongezwa kwangaphandle kwabalawuli bokukhula kwezityalo, njenge-gibberellin (GA3), kunokuphucula ngokufanelekileyo ukukhula kwezityalo kunye namandla, ngaloo ndlela kunceda izityalo ukuba ziphendule ngcono kuxinzelelo lwetyuwa.Injongo yolu phononongo yayikukuvavanya ubutyuwa (0, 10 kunye ne-20 mM NaCl) eyongeziweyo kwisisombululo sezondlo zeminerali (MNS).
Naphantsi koxinzelelo oluphakathi lwetyuwa (10 mM NaCl) ye-lettuce kunye nezityalo ze-rocket, ukuncitshiswa kwe-biomass yabo, inani lamagqabi kunye nommandla weqabunga limisela ukukhula kunye nesivuno kakhulu.Ukongeza i-GA3 yangaphandle nge-MNS kunokuphelisa uxinzelelo lwetyuwa ngokuphucula iimpawu ezahlukeneyo ze-morphological kunye ne-physiological (ezifana nokuqokelelana kwe-biomass, ukwanda kwamagqabi, ukuqhutyelwa kwesisu, kunye nokusetyenziswa kakuhle kwamanzi kunye ne-nitrogen).Imiphumo yoxinzelelo lwetyuwa kunye nonyango lwe-GA3 luyahluka ukusuka kwiintlobo ukuya kwiintlobo, ngaloo ndlela iphakamisa ukuba le ntsebenziswano inokunyusa ukunyamezela ityuwa ngokuvula iinkqubo ezahlukeneyo zokuguquguquka.