不同郁闭度和坡位对毛竹林下套种多花黄精的影响

Effects of Different Canopy Degree and Slopes on the Growth of Palygunaum cyrtonema Interplanted under Bamboo Forest

[目的]为进一步推广多花黄精人工栽植提供参考。[方法]对不同郁闭度和坡位的毛竹林下套种的多花黄精生长情况进行分析。[结果]郁闭度和坡位均在一定程度上影响着多花黄精的株高、地径、根茎总长、根茎直径和根茎鲜重等生长指标,尤其是对根茎鲜重的影响更大,不同郁闭度根茎鲜重表现为0.6～0.8>0.4～0.6>0.8以上,不同坡位根茎鲜重表现为下坡位>中坡位>上坡位。[结论]多花黄精人工栽培时要做好适度遮阳和水肥管理。

[ Objective ] In order to provide reference for expanding cultivated area of Polygonatum cyrtonema. [ Method ] The growth of Polygonatum cyrtonema cultivated in the bamboo forest with different canopy degree and different slopes was studied. [ Result] Canopy degree and slope had certain influence on the height, ground diameter,roots length,roots diameter, and roots fresh weight, especially more influence on the roots fi＇esh weight, the roots fresh weight of Polygonatum cyrtonema with different canopy degree was 0.6 - 0.8 〉 0.4 - 0.6 〉 0.8. The roots fresh weight of Polygonatum cyrtonema with different slopes was lower slope 〉 middle slope 〉 upper slope. [ Conclusion ] Cultivating Polygonatum cyrtonema should do well in the control the shading illumination intensity and the management of water and fertilizers.