Softwood Cutting Propagation Technique of Acer truncatum

doi:10.11924/j.issn.1000-6850.casb19030084

Abstract

Abstract:

In this study, the internal and external factors that affect the softwood cutting were discussed to provide references for the softwood-cutting propagation and introduction and domestication of Acer truncatum. An orthogonal experiment of four factors by three levels [L₉(3⁴)] was applied to studying the effects of three growth regulators and their concentrations, treating time and cutting mediums on rooting rate, adventitious root number, maximum root length and root width of A. truncatum. The results indicated that: the rooting rate and the development indexes of A. truncatum root were influenced not only separately by the factors such as growth regulators and their concentrations, treating time and cutting mediums, but also synthetically by many factors. The best treatment combination for softwood cutting of A. truncatum was A1B1C1D1, in which, the softwood cutting was treated with ABT1 of 1500 mg/L for 10 seconds, then planted in mixed medium, which resulted in 89% rooting rate. The comprehensive analysis of membership function showed that the optimum treating combination for root development was treatment No.4, namely, 1500 mg/L NAA treating for 5 min and taking perlite as the medium. The membership value was 1.82, and the rooting rate was 87%. Considering the rooting rate and the root development indexes, treatment No.4 has relatively high practical value in application and can meet the needs of variety improvement.

Key words: Acer truncatum, softwood cutting propagation, mediums, rooting rate, root development

CLC Number:

S723.1

Yan Liping, Wang Yinhua, Ren Fei, Shu Defeng, Liu Cuilan, Li Qinghua, Zang Zhenrong, Wu Dejun. Softwood Cutting Propagation Technique of Acer truncatum[J]. Chinese Agricultural Science Bulletin, 2020, 36(19): 55-61.

Figures/Tables 9

References 32

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水平	因素
水平	A.生长调节剂	B.浓度/(mg/L)	C.扦插基质	D.处理时间
1	ABT1	1500	混合基质	10 s
2	NAA	2000	珍珠岩	2 min
3	IBA	2500	沙子	5 min

水平	因素
水平	A.生长调节剂	B.浓度/(mg/L)	C.扦插基质	D.处理时间
1	ABT1	1500	混合基质	10 s
2	NAA	2000	珍珠岩	2 min
3	IBA	2500	沙子	5 min

序号	生长调节剂	浓度	基质	处理时间	生根率/%
1	1	1	1	1	89±5a
2	1	2	2	2	76±2b
3	1	3	3	3	60±1c
4	2	1	2	3	87±1a
5	2	2	3	1	76±1b
6	2	3	1	2	62±2c
7	3	1	3	2	42±3d
8	3	2	1	3	64±1c
9	3	3	2	1	73±2b

序号	生长调节剂	浓度	基质	处理时间	生根率/%
1	1	1	1	1	89±5a
2	1	2	2	2	76±2b
3	1	3	3	3	60±1c
4	2	1	2	3	87±1a
5	2	2	3	1	76±1b
6	2	3	1	2	62±2c
7	3	1	3	2	42±3d
8	3	2	1	3	64±1c
9	3	3	2	1	73±2b

编号	变异来源	自由度	平方和	均方	F	显著性
1	生长调节剂	2	416.000	218	1.91	0.000^**
2	浓度	2	96.000	48	0.52	0.044^*
3	基质	2	344.000	172	1.56	0.122
4	处理时间	2	776.000	388	3.95	0.003^**