Responses in gas exchange and water status between drought-tolerant and -susc…

The purpose of this studywas to investigate the physiological responses of drought-tolerant and drought-susceptible soybean genotypes to exogenous abscisic acid (ABA) application during progressive soil drying at seedling stages. Five-day old soybean seedlings were transplanted into PVC tubes filledwith soilmixture. Seedlingswerewatered dailywith similarwater volumes until second trifoliate lea…