Optional Research on Cutting,Matrex and Root Promoting Agent for Intelligent Propagation of Syzygium Samarangense

Effects of cutting, matrix and root promoting agent on rooting of Syzygium Samarangense cuttings were studied under the rapid propagation system of germchit intelligent monitor and control.The results showed that the survival rate of the lignified or half-lignified cuttings with leaves was higher and its root traits were better than that of cutting without leaves.And the amount of roots developed on the cuttings was significantly higher when the cuttings were cultivated in peaty soil than in sand.In addition, longer roots were consistently found on cuttings in peaty soil rather than that in sand or in perlite substrate.Among the treatments of root promoting agent IBA, NAA and IAA, the addition of IBA rendered the best result on rooting.Furthermore, the treatment of IBA 500×10-6significantly increased the survival rate of roots as well as the overall growth of the cuutings.