P.K. KINGRA; PRABHJYOT KAUR; MANDEEP KAUR KHEHRA; S. S. HUNDAL. Thermal requirement and heat use efficiency of sunflower (Helianthus annus L.) in Punjab. Journal of Agrometeorology, [S. l.], v. 9, n. 2, p. 223–230, 2007. DOI: 10.54386/jam.v9i2.1132. Disponível em: https://journal.agrimetassociation.org/index.php/jam/article/view/1132. Acesso em: 28 mar. 2024.