Study On Rapid Propagation Of Acer Truncatum Optimization Theory And Method Of Cutting Matrix Formulation

Acer truncatum as a difficult rooting species, their previous studies mostly ornamental value and economic benefits as the starting point, research on its growth and reproduction of the pHysical and chemical properties suitable medium index is little, for this experiment, sand, peat perlite as a medium material, through a combination of different proportions of compounding, cutting propagation medium suitable for Acer truncatum pHysical and Chemical Properties index study to examine the pHysical and chemical properties of different cutting medium Acer truncatum rooting and rooting quality. By mixing medium volume of quality indicators of pHysical and chemical properties of total porosity, aeration porosity, water holding capacity, pH value, EC values, etc., to root cuttings average number of longest root length, average root length, root diameter, root fresh weight, root dry weight, measurement results rooting rates were compared to identify the optimal pHysical and chemical properties of medium models most suitable for Acer truncatum cutting propagation. To promote the standardization of Acer truncatum Cutting Propagation matrix, improving the quality of Acer truncatum cutting propagation. The main results are as follows:Experimental use of mixture experiment design method simplex lattice design group with the test formulation, the pHysical and chemical properties of the test medium and Acer truncatum Root System Mixture Design of variance analysis and correlation analysis to identify the different pHysical and chemical properties of the medium the difference between the root and the impact on Acer truncatum; studied sand, peat, perlite ratio of three different medium materials application results in Acer truncatum cutting propagation, the results show that:the difference between pHysical and chemical properties of each comparison medium significant proportion of sand is mixed medium influence the quality and volume of water holding capacity of the main factors; the size of the porosity is mainly affected by perlite; medium pH value, EC value is greatly influenced by the medium after mixing three medium sufficiently mixed with sand in order to help reduce the pH value-based medium and increase the EC value. Mix medium can overcome some of the shortcomings of a single matrix, the medium of pHysical and chemical properties are improved, and thus more conducive to the growth of Acer truncatum cuttings. test 10 medium processing cutting propagation of Acer truncatum effect more significant impact, sand:peat:perlite=5:3:2 (volume ratio), Acer truncatum rooting rate up to 96.67%, the largest comprehensive evaluation roots 0.804; sand: peat:perlite=2:1:1 (by volume), followed by rooting rate was 93.33%, obtained by regression model significance test, R=0.951, R2=0.905, regression model can explain a good representation the relationship between the ratio of the comprehensive evaluation index roots with different medium volume. pHysical and chemical properties of the medium respectively observations regression model, the regression model to find the ratio between the different pHysical and chemical properties of the medium between the use of computer simulation optimization, Acer truncatum Cutting Propagation medium obtained at the 95% confidence interval of the optimal assignment sand interval ratio 60.0% ? 62.2%,31.6% ? 32.6% peat, perlite 7.8%?9.6%; the ratio of the medium to optimize the range into the regression equation pHysical and Chemical Properties index models and solving cutting medium of Acer truncatum get pHysical and chemical properties suitable for the bulk mass index 0.7117?0.8027g·cm-3, the total porosity of 43.51? 57.02%, aeration porosity 33.48%?48.63%, water holding capacity of 59.51%?67.32%, pH 6.9?7.2, EC 0.315?0.425ms·cm-1.Model validation test in bilateral significant probability forecast values and measure values P=0.764> 0.05, no significant difference between the two. Instructions for the pHysical and chemical properties index model of the optimal range of different substrates under the material condition of acer truncatum cutting propagation of root system growth fitting effect is good, can use in actual production test.