NAGARAJAN, SHANTHA, and V K PANDITA. “Effect of Umbel Shape on Root Characters and Subsequent Seed Yield in Asiatic Carrot (Daucus Carota)”. The Indian Journal of Agricultural Sciences, vol. 71, no. 2, Apr. 2014, https://epubs.icar.org.in/index.php/IJAgS/article/view/39547.