A. K. SINGH, P. T, and SHABD. “Heat Unit Requirements for Phenophases of Wheat Genotypes As Influenced by Sowing Dates”. Journal of Agrometeorology 10, no. 2 (December 1, 2008): 209–212. Accessed November 22, 2024. https://journal.agrimetassociation.org/index.php/jam/article/view/1206.