B. R. and M.S. CHANDAWAT, “Influence of irrigation, row orientation and nitrogen on downy mildew of blond psyllium”, Indian Phytopath., vol. 56, no. 4, pp. 453–456, Nov. 2003, Accessed: Jun. 12, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IPPJ/article/view/18447