A NUMERICAL CLASSIFICATION ON THE CLONES OF FRAXINUS VELUTINA The Karyotype Analysis of Fraxinus velutina Biocontrol of Batocera horsfieldi (Coleoptera: Cerambycidae)Attacking Ash Trees by Releasing the Parasitoid Dastarcus helophoroides (Coleoptera: Bothrideridae) Effect of Magnetic Treatment of Salty Irrigation Water on Physiological and Growth Characteristics of Potted Fraxinus velutina Seedlings Root Distribution and Fine Root Growth in Mixed Plantation of Robinia pseudoacacia and Fraxinus velutina in Coastal Saline-Alkali Area Identification of Salt Tolerant Fraxinus velutina SCAR Molecular Marker