PHOTOSYNTHETIC RESPONSE OF SPRING OILSEED RAPE TO HEAT, DROUGHT, NUTRIENT DEFICIENCY AND COMBINED STRESS

This study was aimed to determine the photosynthetic response of spring oilseed rape to heatwave (HW), drought, nutrient deficiency (N-D) and combined stress. HW and drought acted in a different manner. Under both adequate and deprived soil nutrient conditions, in the presence of adequate water supply, HW up regulated the photosynthetic performance of rape. However, drought-induced stress was highly exacerbated under HW, leading to the incomplete recovery that was additionally impaired by nutrient deficiency.