KHAN, F. U., MALIK, F. A., KHAN, F. A., & SIDDIQUE, M. A. A. A. (2011). Effect of plant growth regulators on growth, physiological behaviour and flower quality of ’Cassini’ tulip(Tulipa gesneriana ). The Indian Journal of Agricultural Sciences, 77(10). https://epubs.icar.org.in/index.php/IJAgS/article/view/3448