EXOGENOUS APPLICATION OF ALA REGULATES GROWTH AND PHYSIOLOGICAL CHARACTERS OF Leymus chinensis (TRIN.) TZVEL. UNDER LOW TEMPERATURE STRESS - S. A. Anjum; Wang Ran; Niu Jian-hang; Ali Zohaib; Li Jin-huan; Liu Mei-ru; Song Ji-xuan; Lv Jun; Wang San-gen; Zong Xue-feng (Journal of Animal and Plant Sciences, 2016)