Tolerance to irrigation water salinity in Physalis peruviana L. plants

Abiotic factors, such as saline stress, can happen in agricultural areas and harm the metabolism of plants. Studies that seek to evaluate acting P. peruviana L. under stress conditions are still incipient. Therefore, objective was tolerance salinity plants different levels irrigation water. The work developed experimental farm Universidade Federal de Campina Grande, Campus Pombal, PB, from January March 2017. Four concentrations water were used (0.3; 1.2; 2.1; 3.0 dS m-1) with five repetitions. At 60 days after transplant, evaluated leaf area, intercellular CO2 concentration, stomatal conductance, transpiration, photosynthetic rate, intrinsic use efficiency, instantaneous carboxylation electrolyte extravasation, chlorophyll a, b carotenoids. results show up m-1 did not provide physiological damages until DAT, except for extravasation electrolytes a b, characterizing plant tolerant studied level.