Soil salinization poses a huge challenge to the development of agriculture and seriously decreases crop yield quality. In recent years, grafting has become one key agronomic techniques used enhance plant abiotic stress tolerance. this study, we found that watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] grafted onto bottle gourd (Lagenaria siceraria Standl.) significantly enhanced sa...

This paper presents an enzyme-based method for the determination of urea in aqueous samples using crude urease from Citrullus lanatus seeds. The is based on enzymatic hydrolysis Urea into ammonia (NH4) and carbon dioxide (CO2) by urease. Ammonia formation determined spectrophotometrically after nesslerization then quantitatively related to concentration via a calibration curve. Reaction conditi...