NAIDU, V.S.G.R; VARSHNEY, JAY G. Interactive effect of elevated COâ‚‚, drought and weed competition on carbon isotope discrimination (Δ¹³ C) in wheat (Triticum aestivum) leaves. The Indian Journal of Agricultural Sciences, Delhi, India, v. 81, n. 11, 2011. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/12021. Acesso em: 27 oct. 2025.