Method of two-time hormones treatment to promote taxodiomeria peizhongii cuttage cutting and seedling

A technology of hormone treatment and cutting seedlings, which is applied in the fields of cultivation, application, agriculture, etc., can solve problems such as difficulties in the propagation of Peizhong fir seedlings, etc., so as to improve the quality of the root system, improve the survival rate of transplanting, maintain water balance and nutrient absorption Effect

Inactive Publication Date: 2017-06-20
NANJING FORESTRY UNIV
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Problems solved by technology

Years of practice have proved that it is extremely difficult to propagate Peizhong fir seedlings, and it is extremely difficult to obtain high-quality seedlings and realize the industrialization of seedlings

Method used

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Experimental program
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Embodiment 1

[0023] A method for promoting rooting and seedling formation of Peizhong fir cuttings by secondary hormone treatment, the specific steps comprising:

[0024] 1. Construction of cutting bed

[0025] Build an automatic spray cutting pool, use electronic timing relays, and the spray gap and spray time can be automatically controlled; the side and bottom of the cutting pool are well drained to avoid difficult drainage when the substrate is too watery; the cutting substrate uses perlite, and the filling thickness is 35cm. Use 500 times of 50% carbendazim soluble powder for spray disinfection in the first 7 days; set up a movable sunshade net (50-60% shading rate) at 2m above the cutting pool.

[0026] 2. Collect branches and prepare spikes

[0027] From late June to early July, cut 1-2 year-old semi-lignified branches of cutting seedlings to make cuttings, and spray water to keep them moist during the process of collecting branches and making cuttings; cuttings production specific...

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Abstract

The invention provides a method of two-time hormones treatment to promote taxodiomeria peizhongii twig cuttage cutting and seedling. The method comprises the steps of conducting rigid control over types, concentration and treatment time of hormones for inducting rooting of the taxodiomeria peizhongii twig cutting slips, the types, concentration and treatment time of hormones for amplifying roots, and the environment condition of cuttage, and the control is achieved through scion preparation, treatment of hormones for inducting rooting, management of cuttage and post-cuttage, root-cutting processing, treatment of hormones for amplifying roots, secondary management of post-cuttage and the like. Since the control over key links of cuttage rooting, root cutting and root amplifying of taxodiomeria peizhongii twigs is intensified, through the treatment of the hormones for twice, the proportion of the hormones inside scions is adjusted, the purpose that the scions can quickly perform rooting and amplified rooting is guaranteed, the root system quality of cuttage seedlings is improved, the cuttage rooting rate of twigs is reached 90% or above, the rooting cuttage seedling rate is reached 90% or above, and a good technological basis is laid for the achievement of the industrial development of cultivation of taxodiomeria peizhongii seedlings.

Description

technical field [0001] The invention relates to the field of tree seedling propagation, in particular to a method for promoting rooting and seedling formation of Peizhong fir cuttings through secondary hormone treatment. Background technique [0002] Peizhong Shan (×Taxodiomeria peizhongii) was used by the late Professor Ye Peizhong of Nanjing Forestry University in 1963 to use Mexican cypress (Taxodium mucronatum Ten.) (♀) and Chinese Chinese cedar (Cryptomeria fortunei Hooibrenk ex Otto et Dietr.) The distant hybrids obtained by hybridization can be called "ligers" in the plant kingdom. Peizhong fir is a semi-evergreen tree species with a cylindrical or oval crown. Its fast-growing ability is significantly better than that of its parents and other fir plants with the same site conditions. ), beautiful tree shape, water and humidity resistance, salt and alkali resistance, and strong air purification ability. [0003] Peizhong fir is a distant hybrid, which does not bear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G9/10
CPCA01G17/005A01G9/0299
Inventor 史锋厚沈永宝徐佩贤葛昊尹中明
Owner NANJING FORESTRY UNIV
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