激素和插穗處理對烏飯樹扦插生根的影響1)

陳慶生　周鵬　張敏　黃利斌　竇全琴

(江蘇省林業科學研究院，南京，211153)

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激素和插穗處理對烏飯樹扦插生根的影響1)

陳慶生周鵬張敏黃利斌竇全琴

(江蘇省林業科學研究院，南京，211153)

摘要以烏飯樹當年生嫩枝為材料，對影響插穗生根的枝條部位、葉片面積和激素等因子進行了系統的研究。結果表明:枝條部位對烏飯樹插穗生根率無顯著影響，但以用枝條中、上部作插穗時，扦插后根系生長情況顯著優于基部。一定量的葉面積可以促進烏飯樹扦插生根，試驗中插穗保留1片葉處理扦插效果較好。運用L9(34)正交試驗對影響插穗扦插生根的激素相關因子進行分析，得出對生根率影響的主次順序為激素種類>處理時間>質量濃度，各因素的最佳處理水平分別是：激素種類為NAA或IBA，激素質量濃度為1 000 mg·L(-1)，浸泡時間為1 min。綜上所述，選擇帶有1片葉的中、上部枝條作為插穗，用質量濃度為1 000 mg·L(-1)NAA或IBA處理插穗1 min，此時烏飯樹扦插的生根效果最好。

關鍵詞烏飯樹；扦插；葉面積；激素；正交試驗

分類號S723

Influence of Different Treatment of Cuttings and Hormone on Rooting of Cutting ofVacciniumbracteatum

Chen Qingsheng, Zhou Peng, Zhang Min, Huang Libin, Dou Quanqin

(Jiangsu Academy of Forestry, Nanjing 211153, P. R. China)//Journal of Northeast Forestry University，2016,44(4)：41-43，47.

With one-year-old soft branches ofVacciniumbracteatum, we studied the effect of different parts of branch, leaf area, kinds and concentration of hormone, and treatment time on cutting. There was no significant difference in the rooting rate of different cutting types, but middle and tip branch as the cuttings showed better on the growth of roots than base branch. A certain mount of leaves area can promote the rooting of cuttings ofV.bracteatum, and the cuttings treated with a leaf showed the best. We studied the influence of hormone on softwood cutting propagation by employing L9(34) orthogonal design with three factors and three levels, which showed that the influencing order of factors to rooting rate was the kinds of hormone>treat time>concentration of hormone, and the best treatment of three factors respectively was as follows: the type of hormone was NAA or IBA, concentrations of hormone was 1 000 mg·L-1, and the treatment time was 1 min. Therefore, the best rooting quality occurred in cuttings with a leaf from middle or tip of a branch treated by NAA or IBA at 1 000 mg·L-1for 1 min.

KeywordsVacciniumbracteatum; Cutting; Leaf area; Hormone; Orthogonal test

烏飯樹(Vacciniumbracteatum)為杜鵑花科(Ericacece)越桔屬(Vaccinium)常綠灌木或小喬木，廣布于長江以南低海拔山地，生境多為山地林緣、疏林下或灌木叢中[1-3]。烏飯樹具有悠久的應用歷史和廣闊的開發前景[4-5]，江浙一帶民間寒食節有采其樹葉煮食烏飯的習俗[6]；果實成熟后酸甜可食[7]。隨著烏飯樹食用和藥用價值的挖掘，其苗木需求量將與日俱增，然而在國內其種群基本處于野生狀態[8]，沒有進行大面積的人工馴化栽培，不能很好的解決市場對烏飯樹苗的需求；同時，由……