Veere Gowda, R., and Ambresh. “Heterosis for Yield and Quality Traits and Resistance to Purple Blotch in Onion”. Indian Journal of Horticulture 71, no. 4 (December 25, 2014): 511–515. Accessed September 13, 2026. https://www.journal.iahs.org.in/index.php/ijh/article/view/1384.