Evaluation of the field performance of cowpea genotypes and their diallel cross under the influence of boron foliar spraying. Euphrates journal of agricultural science, [S. l.], v. 18, n. 3, 2026. Disponível em: https://ejs-agri.com/index.php/EJAS/article/view/376. Acesso em: 31 oct. 2026.