BUTA SINGH DHILLON, P.K. SHARMA, VIRENDER SARDANA. Productivity of spring sunflower (Helianthus annuus) in response to sowing dates and foliar application of boron and TIBA. IJA [Internet]. 2024 Apr. 30 [cited 2026 Jun. 23];63(3):342-9. Available from: https://pub.isa-india.in/index.php/ija/article/view/5659