EFFECT OF LEAVES DEFOLIATION AND DATE OF DEFOLIATION ON YIELD OF SUNFLOWER PLANT(Helianthus annuus L.) IN GYPSYFEROUS SOIL. Iraqi Journal of Science [Internet]. 2024 Oct. 17 [cited 2024 Nov. 21];50(2):152-60. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/14147