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Seedling raising techniques of tender wood cuttings of Metasequoia glyptostroboides?

Published: 2024-11-24 Author: mysheen
Last Updated: 2024/11/24, The seedling raising techniques of tender wood cuttings of Metasequoia glyptostroboides are as follows: from late May to early June in early summer, the temperature reaches 25 to 28 degrees Celsius, and cuttings can be selected to raise seedlings. Generally, twigs about 14 to 18 centimeters long are selected in the early morning and cut off from the inflated parts with bud scales at the base of the branches. Then remove the extra feather leaves, leaving only the tip and the upper 4-5 feather leaves. Wrap it in a moist substance and keep it fresh in a cool place. Cut cuttings were treated with 50 mg of NAA per kg for 5 to 6 hours, or 300 to 500mg of NA per kg.

The seedling raising techniques of tender wood cuttings of Metasequoia glyptostroboides are as follows: from late May to early June in early summer, the temperature reaches 25 to 28 degrees Celsius, and cuttings can be selected to raise seedlings. Generally, twigs about 14 to 18 centimeters long are selected in the early morning and cut off from the inflated parts with bud scales at the base of the branches. Then remove the extra feather leaves, leaving only the tip and the upper 4-5 feather leaves. Wrap it in a moist substance and keep it fresh in a cool place. Treat the cut cuttings with 50 mg of NAA per kg for 5 to 6 hours, or dip the cuttings with 300 to 500 mg of NAA for 3 to 5 seconds. Then cut according to the row spacing of 4 to 5 cm by 10 to 12 cm, with 180 to 200 plants per square meter. The cutting depth is 4 to 6 cm. It can take root 20 to 25 days after cutting. In order to prevent the sowing ear from wilting and withering, it should be shaded properly. The shade on the top of the bed should be 80 centimeters, with wind barriers on all sides. Spray 3 to 5 times a day according to weather conditions to keep the seedbed and air moist. When the temperature is too high, we should pay attention to ventilation and heat dissipation, and increase the number of water spraying. Since late August, the temperature is getting lower and the resistance of seedlings is enhanced, so the shade can be removed gradually and the light can be increased slowly. In recent years, the survival rate of softwood cuttings with full light fog is very high. Nurseries with suitable conditions should be adopted.

 
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