不同基质、生长调节剂及部位对米槁扦插生根的影响

Effects of different substrates, growth regulators and parts of cuttings on cutting propagation of Cinnamomum migao

摘要:

如今米槁种群数量小，为增加及开发米槁资源，以米槁枝条为材料，开展了不同基质（蛭石、珍珠岩、河沙、珍珠岩∶河沙=1∶1）、不同部位(上部、中部、下部、不同种类（IBA、ABT-1、GGR-6）不同浓度的激素处理对米槁扦插生根影响的实验.扦插试验表明：珍珠岩基质中插穗生根率为65.56%，是米槁插穗扦插生根的最佳基质.植物生长调节剂种类和浓度对插穗生根作用显著，30mg/L的GGR-6浸泡4h的米槁插穗生根效果最好，生根率达到63.33%.米槁插穗生根效果由高到低依次为枝条的下部、中部、上部.

Abstract:

Due to the small population of C. migao , effects of different treatments on cutting propagation were researched to increase and develop the resources by using the cutting of C. migao as the test materials， including different parts of branches (upper, middle and lower), different media (vermiculite, sand, perlite, sand + perlite ) and different types (IBA, ABT-1,GGR-6) and different concentrations of hormone treatments. The results showed that rooting rate in pearlite substrate was 65.56%, which is the optimal matrix. The types and concentration of plant growth regulator had a significant effect on rooting, and the rooting rate could reach 63.33% when the C. migao was soaked in 30 mg/L GGR 6 for 4 h. The rooting effects in descending order were the lower parts, the middle parts and the upper parts of branches.