BUTA SINGH DHILLON et al. 2024. Productivity of spring sunflower (Helianthus annuus) in response to sowing dates and foliar application of boron and TIBA. Indian Journal of Agronomy. 63, 3 (Apr. 2024), 342–349. DOI:https://doi.org/10.59797/ija.v63i3.5659.