Carvalho LM de, Carvalho HWL de, Carvalho CGP de. Yield and photosynthetic attributes of sunflower cultivars grown under supplemental irrigation in the semiarid region of the Brazilian Northeast. PAB [Internet]. 2020 Aug. 13 [cited 2025 Nov. 24];55(X):e01715. Available from: https://apct.sede.embrapa.br/pab/article/view/26730