Chlorophyll a fluorescence as a tool to monitor physiological status of plants under abiotic stress conditions - Hazem M. Kalaji; Anjana Jajoo; Abdallah Oukarroum; Marian Brestic; Marek Zivcak; Izabela A. Samborska; Magdalena D. Cetner; Izabela Łukasik; Vasilij Goltsev; Richard J. Ladle (Acta Physiologiae Plantarum, 2016)