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Method for resisting cold and freezing of seedlings

A technology for seedlings and antifreeze, which is applied in the field of growth regulation of agricultural, forestry and horticultural plants, can solve the problems of serious freezing injury, low survival rate, poor cold resistance and the like, and achieves the effects of promoting lateral root growth, simple preparation, and improving the degree of lignification.

Active Publication Date: 2018-12-07
河北省林业和草原科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned defects in the prior art, to provide a kind of non-native tree species introduced from warm regions to cold regions, poor cold resistance, serious frost damage, and low survival rate, from the internal physiological characteristics of seedlings at different stages of growth. Adjustment starts, which can promote the method of improving the degree of lignification of seedlings and increasing the ability of cold resistance and antifreeze

Method used

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  • Method for resisting cold and freezing of seedlings
  • Method for resisting cold and freezing of seedlings
  • Method for resisting cold and freezing of seedlings

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preparation example Construction

[0038] The invention provides a kind of preparation method of composite seedling antifreeze agent, comprising the following steps:

[0039] (1) Preparation of A preparation. Take Paclobutrazol, Potassium Indolebutyrate, Cacl 2 The solid powder is weighed according to the proportion of the ingredients, mixed and stirred evenly, put into a glass bottle and sealed.

[0040] (2) Preparation of B preparation. Take abscisic acid, ethephon, and thiophanate-methyl solid powder, weigh them respectively according to the proportion of the ingredients, mix them, stir evenly, put them into glass bottles and seal them.

[0041] Instructions

[0042] (1) How to use preparation A

[0043] aUsage time. The plant growth season is in the middle and late period, and the approximate time is July-August. In addition, appropriate adjustments can be made according to the local climate. The length of plant growth season in warm areas can be appropriately delayed, and the length of plant growth s...

Embodiment 1

[0053] The formula of a composite nursery stock antifreeze agent is divided into A+B preparations, which are made by mixing the raw materials in the following weight proportions. The following raw materials are all selected as solid powders. Builders and other ingredients.

[0054] A preparation formula:

[0055] Paclobutrazol: 1 part;

[0056] Potassium indolebutyrate: 0.01 parts;

[0057] Cacl 2 : 0.5 parts.

[0058] Formulation of preparation B:

[0059] Abscisic acid: 0.05 parts;

[0060] Ethephon: 0.25 parts;

[0061] Thioprazine-methyl: 1 serving.

[0062] Preparation method: same as 3. Preparation method.

Embodiment 2

[0064] The formula of a composite nursery stock antifreeze agent is divided into A+B preparations, which are made by mixing the raw materials in the following weight proportions. The following raw materials are all selected as solid powders. Builders and other ingredients.

[0065] Paclobutrazol: 1.5 parts;

[0066] Potassium indolebutyrate: 0.015 parts;

[0067] Cacl 2 : 1 serving.

[0068] Formulation of preparation B:

[0069] Abscisic acid: 0.075 parts;

[0070] Ethephon: 0.6 parts;

[0071] Thioprazine-methyl: 1.5 parts.

[0072] Preparation method: same as 3. Preparation method.

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Abstract

The invention provides a method for resisting cold and freezing of seedlings. The method comprises separately spraying a cold-resistant antifreeze A and a cold-resistant antifreeze B at different times, wherein the cold-resistant antifreeze A is used in middle and late growth periods of seedlings for inhibiting high growth of seedlings, shortening internodes, promoting cell differentiation and division of rhizomes, promoting rooting of xylems, thickening of stems and cell wall formation, and improving the degree of lignification of seedlings, and the cold-resistant antifreeze B is used to promote leaf shedding, bud dormancy and stoma closing in autumn, accelerate the physiological effects of maturity, shedding and aging, thereby accelerating the lignification of seedlings and preventing seedling disease. The cod-resistant antifreezes are applied at different stages of a growing season to regulate seedling growth and physiological activities of the seedlings. In the middle and late growth season, the excessive growth of the seedlings is controlled, the diameter-to-height ratio is increased, and lateral root growth is promoted. In autumn, leaf shedding and leafbud dormancy of the seedlings are promoted, seedlings maturity is accelerated, the degree of lignification is increased, and the resistance to cold and freezing of the seedlings is significantly improved.

Description

technical field [0001] The invention relates to the technical field of growth regulation of agricultural, forestry and horticultural plants, in particular to a cold-resistant and anti-freezing method for seedlings. Background technique [0002] In the current urban and rural greening process, there are a large number of remote seedling transfers, from low-altitude areas to high-altitude areas, and even cross-latitude seedling transfers; especially in the transfer of seedlings from warm areas to cold areas, there are different degrees of cold resistance of seedlings The problem of poor ability, and this kind of seedlings are used for afforestation, the overwintering problem in the past few years has become a key link affecting the survival rate of seedlings. In addition, in order to enrich the plant landscape and winter colors in northern cities, they often introduce species from the south. These non-native tree species need to consider the problem of cold resistance and fros...

Claims

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Application Information

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IPC IPC(8): A01G7/06
CPCA01G7/06
Inventor 任启文李联地尤海舟李洁王鑫徐振华张岩张树梓
Owner 河北省林业和草原科学研究院
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