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基于正交设计的紫叶北美稠李扦插试验

Study on cutting seedling raising of Prunus virginiana L. based on orthogonal design

  • 摘要: 为研究不同因素组合对紫叶北美稠李扦插生根的影响,找到适合紫叶北美稠李扦插育苗的方法,本研究采用正交试验设计,利用方差分析和极差分析法探讨扦插基质、激素种类、激素浓度3个因素对紫叶北美稠李扦插不同生根指标的影响。结果表明:紫叶北美稠李属于混合生根型;扦插基质、激素种类、激素浓度3个因素对紫叶北美稠李扦插各生根指标均影响显著(P<0.05);极差分析结果显示影响紫叶北美稠李扦插生根率的最佳组合是A2B2C3,影响紫叶北美稠李扦插侧根数的最佳组合是A1B2C1;影响紫叶北美稠李扦插平均根长的最佳组合是A1B3C3,利用根系效果指数对紫叶北美稠李生根效果进行综合评价,结果表明影响根系效果指数的最佳组合是A1B2C3,即选用草炭土加珍珠岩(1:1)作为基质,IBA为生长激素,激素浓度200ppm进行扦插的生根效果最好。

     

    Abstract: In order to study the effects of different factor combinations on the rooting of Prunus virginiana L. cuttings and find a suitable method for Prunus virginiana L. cuttings, this study used orthogonal analysis and range analysis to explore the effects of cutting matrix, hormone species and hormone concentration on different rooting indexes of Prunus virginiana L. cuttings. The results showed that the rooting type of Prunus virginiana L. is mixed type; the three factors of cutting matrix, hormone species and hormone concentration had significant effects on the rooting indexes of Prunus virginiana L. cutting(P < 0.05); A2B2B3 was the best combination affecting the rooting rate of Prunus virginiana L.; A1B2C1 was the best combination affecting the number of lateral roots of Prunus virginiana L. cutting; A1B3C3 was the best combination affecting the average root length of Prunus virginiana L. cutting; the best combination affecting the rooting effect of Prunus virginiana L. cutting is A1B2C3, that is, using peat soil and perlite(1:1) as matrix, IBA as growth hormone and hormone concentration of 200ppm for cutting, the comprehensive effect is the best.

     

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