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多花黄精种茎不同摆种方法对一年生种苗生长的影响

Influence of Different Planting Methods to Growth of 1-year Polygonatum cyrtonema Seedlings

  • 摘要: 通过在锥栗Castanea henryi 林下多花黄精Polygonatum cyrtonema 种茎平摆倒种、斜插倒种和常规种植3 种 育苗方法的对比试验,分析比较多花黄精一年生种苗生长情况。结果表明,利用多花黄精一节一芽一年生根茎的 切块根茎培育的一年生种苗可用于栽培,比种子繁殖缩短了2 ~ 3 a;多花黄精种茎不同摆种方法的种苗物候期没 有差别,但同生产区比较有明显差别;常规种植的苗高和叶片数均显著高于平摆倒种、斜插倒种,而斜插倒种和 平摆倒种之间均不显著,不同摆种方法的种苗地上茎粗、根茎增重量、新芽数均无显著性差异;斜插倒种、平摆 倒种虽然对根茎增重和新芽数无显著促进作用,但斜插倒种、平摆倒种根茎增重率分别比常规种植提高了9.93% 和9.28%,平摆倒种的新芽数比常规种植法提高了8.21%。多花黄精采用斜插倒种和平摆倒种法进行根茎育苗, 不但当年可出苗,而且根茎产量提高明显,新芽生长粗壮有力,可在生产上推广使用。

     

    Abstract: Fresh rhizomes of Polygonatum cyrtonema were harvested and cut into segments in November of 2014 under Castanea henryi stand. In March of 2015, cuttings were planted with different methods for comparison on their growth. The results showed that there was no difference of phonological period of seedlings among different methods, but evident among different sample plots. Seedling height and leaf number of seedlings by common planting was significantly higher than that by the other planting methods. There was no significant difference of stem diameter, weight of rhizomes and bud number of seedlings by different planting methods, but weight of rhizome of seedlings by different planting methods was 9.93% and 9.28% higher than that of common planting. The experiment demonstrated that seedling cultivation of P. cyrtonema could be implemented by different methods.

     

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