“…9,10 In addition, in actual production and life, illegal addition is common and the misuse of plant growth regulators to accelerate the ripening of fruits and vegetables can pose risks to human health. 11,12 When the concentration of external application of ABA is greater than or equal to 10 À7 mol, it can inhibit the growth of stems, hypocotyls, roots, coleoptiles or leaves and other organs. 13 Hence, it is also urgent to monitor the content of illegally added ABA.…”