The Cutting and Growing Techniques of Eucalyptus Tender Branches

Through researching on the effect of maternal plant cultivation and management, the resource of cutting, selecting of rooting substance, making up rooting medium, difference of Eucalyptus species, air temperature changing on the quantity and quality of Eucalyptus cutting, and rooting percentage, were all studied. The results are shown as follows. The difference of cuttings' quantity per single maternal plant and per unit area among three cultivation models of pot, bag and seedling bed cultivation is significant. The rooting percentage and rooting time of most Eucalyptus clones are not different with different resources of cuttings. The rooting percentage difference between different clones is significant, and the highest of them is clone M1 whose rooting percentage is 97.33% and the lowest of them is clone UT6 whose rooting percentage is 39.33%. There are differences of the rooting percentage, mean rooting quantity and rooting time of most Eucalyptus clones after using different rooting substances. Generally, the rooting substance L1 is better than the others. Using the compound of yellow subsoil and peat soil by 1∶1 as cutting medium is a better treatment for Eucalyptus cutting. And mean rooting percentage is negatively related with mean temperature monthly, and there is also a different linear relationship among the different clones.