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A Method of Improving the Cold Resistance of Green Seedlings

A technology for cold resistance and seedlings, applied in the field of green forest tree cultivation, can solve the problems of low probability of mutant plants affecting ornamental and cold resistance, and frequent breeding cycles.

Inactive Publication Date: 2020-10-23
苏州市绿韵园林工程有限公司
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Problems solved by technology

However, these methods have uncertainties. On the one hand, the breeding cycle is frequent, and the probability of screening out cold-resistant mutant plants is small, and the survival rate is low; face planting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] Experiment with Chinese tallow tree.

[0042] 1. In the first ten days of February, Chinese tallow tree seeds with plump grains and no disease will be selected, and CaCl with a concentration of 20-30mmol / L will be added. 2 In the solution, the soaking solution is required to cover the seeds and stir to ensure that each seed can fully absorb the CaCl 2 solution, tallow tree seeds need to be soaked for 48 hours and stirred every 12 hours. After soaking, lay the seeds flat in a cool place to dry.

[0043] 2. At the emergence stage, when more than 60% of the nursery seedlings reach a plant height of more than 20cm, it is the best time to apply the pesticide, and apply 10-20mmol / L CaCl to the leaves of the whole plant. 2 . The spraying time is around 4:00 p.m., once every 3 days, spraying 5 times in total.

[0044] 3. From June to August is the vigorous growth period of seedlings, and apply 30-50mmol / L CaCl in the first ten days of June 2 , mainly apply pesticides to th...

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Abstract

The invention discloses a method for improving the cold resistance of greening nursery stocks. The method comprises the following steps that 1, at a seeding stage, before spring sowing, screened nursery stock seeds are disinfected and put in a CaCl2 solution for soaking, and then the nursery stock seeds are put at a shade place for air drying after soaking; 2, at a seedling stage, the CaCl2 solution is sprayed on whole plants; 3, at a tending stage, KH2PO4 are sprayed on the whole plants, and then root irrigation is performed by using the CaCl2 solution; 4, at a leaf fall stage, and Ca(H2PO4)2.H2O and KCl are dressed on the roots of nursery stocks. The method is simple in operation and easy to master, the geographic restrictions to planting popularization are broken through, the resistance of the nursery stocks is improved, the production cost is reduced, time and labor are saved, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of greening forest tree cultivation, in particular to a method for improving the cold resistance of greening seedlings. Background technique [0002] Tree species such as Chinese tallow tree, crape myrtle, Chongyang wood, Dianpu, and Magnolia are common greening tree species in urban greening. In recent years, with the acceleration of urban greening construction, southern species have moved north, and northern species have moved southward. In order to break the limitation of regional planting of tree species and improve the stress resistance of tree species, the current common method is to realize the introduction and cultivation of new species through breeding of new varieties or facility cultivation. However, these methods have uncertainties. On the one hand, the breeding cycle is frequent, and the probability of screening out cold-resistant mutant plants is small, and the survival rate is low; surface pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/06A01N59/08A01N59/26A01G7/06A01C21/00
CPCA01C21/005A01G7/06
Inventor 吴仕超赫春长袁位高田野闫道良郭天冰仇黎琼李洪光赵明夏苏娟胡磊
Owner 苏州市绿韵园林工程有限公司
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