MOBILITY AND DEGRADATION OF ~(14)C-TRIFLURALIN IN SOIL Studies on Polyploid Induction in Anthurium andraeanum Using Oryzalin,Trifluralin and Colchicine Study of Polyploid Development Induction of Lilium sargentiae Wilson by Two Herbicides in vitro Studies on Polyploid Induction in Anthurium andraeanum Using Oryzalin,Trifluralin and Colchicine The Influence of Trifluralin on Mitosis of Wheat Root Cells EFFECT OF PRESOWING APPLICATION OF TRIFLURALIN ON COTTON SEEDLING DISEASES AND FUSARIUM WILT Degradation of trifluralin in soils and its affected factors