Mallick PK. Karyomorphology, Meiotic Behaviours and Pollen Fertility of Calendula officinalis L. (Calenduleae- Asteraceae). Int J Appl Sci Biotechnol [Internet]. 2021 Mar. 30 [cited 2024 Jul. 3];9(1):75-9. Available from: https://nepjol.info/index.php/IJASBT/article/view/36011