Rahmanpour, A., Vaziri, A., Salehi Shanjani, P., Rabie, M., & Asri, Y. "The effect of drought stress on morphological traits and proline values of five medicinal species of Allium L. in Iran", Iranian Journal of Horticultural Science, 52, 2, 2021, 501-513. doi: 10.22059/ijhs.2020.294321.1750