SINGH, Jagjeewan; SINGH, Som Pal; KINGRA, P. K. Thermal requirements and heat use efficiency of Brassica cultivars under varying sowing environments and row orientations. Annals of Agricultural Research, India, v. 39, n. 1, 2018. Disponível em: https://epubs.icar.org.in/index.php/AAR/article/view/79056. Acesso em: 7 jun. 2026.