PRELIMINARY STUDIES ON THE PHYSIOLOGICAL CHANGES INDUCED BY THERMAL AND WATER STRESS IN SWEET POTATO GROWN IN SOUTHWEST ROMANIA

Rezumat

This scientific paper presents the results of a study carried out at Dăbuleni Research-Development Station for Plant Culture on Sands, in 2023, regarding the physiological changes in sweet potato plants grown in Southwest Romania, on sandy soils and in different irrigation regimes. In the phenophase of intense growth of tuberous roots, determinations were made regarding the rate of photosynthesis, transpiration and stomatal conductance in correlation with air temperature and solar radiation. Dabu 23 variety recorded the highest values for all the indices studied and the most sensitive variety to heat and water stress was found to be Ro-Ch-M.