Effect of 1%Triadimefon+15%Ethylicin WP and 15%Carbendazim+15%Thiram WP on softwood cuttings of Codiaeum variegatum var.pictum Effect of Cuttings with Different Lignin Contents on Cutting Rooting of Tetraploid Robinia pseudoacacia Changes of Endogenous Hormones in Adventitious Root Forma tion in Soft-wood Cuttings of Autotetraplo id Grape Muscat Hamburg Changes of Endogenous Hormones in Adventitious Root Forma tion in Soft-wood Cuttings of Autotetraplo id Grape Muscat Hamburg