Comparison Between the Physiological Role of Carrot Root Extract and β-carotene in Inducing Helianthus annuus L. Drought Tolerance

Mona Gergis Dawood, Mohamed El-Sayed El-Awadi, Mervat Shamoon Sadak and Safaa Reda El-Lethy

Asian Journal of Biological Sciences 12 ( 2 ): 231 - 241 , 2019