Propagation techniques on root turion sprout browse ofPopulus davidiana Dode

Abstract

The root segments selected from dominant trees ofPopulus davidiana Dode were taken as reproductive material and were buried in different depths to carry out the reproduction of root turion sprout. The affecting factors of gemination rate, survival rate, and height growth for cutting wood of root sprout were comparatively analyzed. The results showed that the best suitable substrate for burying root is pearlite, with a germination rate of 15.16%. 3–4-cm root segments has the highest rate of germination (12.4%). The mixture of sand and soil (2∶1) is the best cutting substrate, with a survival rate of 81.3%, while as to height growth of cutting wood, the mixture of turfy and soil (1∶1) is the best. The cutting woods selected from different positions of stem show difference in height growth. The cutting wood from top stem is higher obviously than those from middle or low stem.

Keywords

Populus davidiana Dode / Root turion / Cutting / S792.114.05 / B

References

[1] Peilin Liu The Study on cultivation ofPopulus davidiana Dode [M], 1993 Harbin: Heilongjiang Science and Technology Publishing House 76-79.

[2] Peilin Liu, Jigong Zhao Improved variety of seed selection forPopulus davidiana Dode [M], 1991 Beijing: China Forestry Publishing House 116-121.

[3] Yilai Lu Propagative techniques onPopulus davidiana Dode [J]. Korea Plant Breeding Research, 1988, 24: 20-27.