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Method for improving cold tolerance of chrysanthemum

A cold resistance, chrysanthemum technology, applied in the field of improving the cold resistance of chrysanthemums, can solve the problems of limited outdoor viewing time, insufficient nutrient supply, poor cold resistance of chrysanthemums, etc., to achieve biological adaptation and good domestication, speed up growth, and avoid low temperature Affected damage effect

Inactive Publication Date: 2018-11-06
界首市彭阁家庭农场
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the poor cold resistance of chrysanthemums, under the influence of cooling, the flower buds will stop growing after entering dormancy, resulting in slowed metabolism and insufficient nutrient supply, thereby shortening the flowering period, resulting in limited outdoor viewing time. In order to prolong the flowering period of chrysanthemums, it is necessary to control the temperature. Need to watch in the shed, causing inconvenience
And the long-term low temperature will cause the above-ground part to freeze to death, resulting in the adverse effect of shortening the flowering period in the next year. If the cold resistance of chrysanthemums can be improved, even under environmental changes, they can maintain a longer blooming period, which will create more economic benefits.

Method used

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  • Method for improving cold tolerance of chrysanthemum

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] A method for improving the cold resistance of chrysanthemums, comprising the following steps:

[0019] (1) Put the roots of fine chrysanthemum seedlings obtained by tissue culture into nutrient solution, and put them into an artificial climate box to cultivate for 3 days. The cultivation process is divided into three stages: the first stage is the first 12 hours, and the temperature is set at 18°C , the second stage is within the range of 12-36 hours, the temperature is set to 12°C, the final stage temperature is set to 5°C, the relative air humidity environment is reduced from 70% to 55% at a constant speed, the light intensity is maintained at 440lx, and the light time is 8 Hour;

[0020] (2) Drain the nutrient solution after the cultivation, rinse the seedlings with a sodium hypochlorite aqueous solution with a mass concentration of 0.03%, and then place them in a ventilated place to air dry for 3 hours before planting. After 5 days of planting, water once, the water...

Embodiment 2

[0027] A method for improving the cold resistance of chrysanthemums, comprising the following steps:

[0028] (1) Put the roots of fine chrysanthemum seedlings obtained by tissue culture into nutrient solution, and put them into an artificial climate box to cultivate for 3 days. The cultivation process is divided into three stages: the first stage is the first 12 hours, and the temperature is set at 19°C , the second stage is within the range of 12-36 hours, the temperature is set to 14°C, the final stage temperature is set to 8°C, the relative air humidity environment is reduced from 72% to 57% at a constant speed, the light intensity is maintained at 450lx, and the light time is 9 Hour;

[0029] (2) Drain the nutrient solution after the cultivation, rinse the seedlings with an aqueous solution of sodium hypochlorite with a mass concentration of 0.035%, and then place them in a ventilated place to dry for 4 hours before planting. After 6 days of planting, water once, and the ...

Embodiment 3

[0036] A method for improving the cold resistance of chrysanthemums, comprising the following steps:

[0037] (1) Put the roots of fine chrysanthemum seedlings obtained by tissue culture into nutrient solution, and put them into an artificial climate box to cultivate them for 4 days. The cultivation process is divided into three stages: the first stage is the first 12 hours, and the temperature is set at 20°C , the second stage is in the range of 12-36 hours, the temperature is set to 16°C, the final stage temperature is set to 10°C, the relative air humidity environment is reduced from 75% to 60% at a constant speed, the light intensity is maintained at 460lx, and the light time is 10 Hour;

[0038] (2) Drain the nutrient solution after the cultivation, rinse the seedlings with an aqueous solution of sodium hypochlorite with a mass concentration of 0.04%, and then place them in a ventilated place to dry for 5 hours before planting. strain, the preparation method of the irrigat...

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Abstract

The invention relates to the technical field of modern agricultural industry and discloses a method for improving the cold tolerance of chrysanthemum. High-quality seedlings obtained by a tissue culture method can be further cultured in an manual climatic box for 3-4 days, on one hand, the purpose of seedling refining can be achieved and the growth speed of bud seedlings can be accelerated, on theother hand, accumulation of photosynthetic pigments in the leaves of growing plants can be improved, and chrysanthemum can greatly absorb light energy, has strong resistance to temperature change andcan endure cold for a long time. Mineral elements are supplemented in the bud stage, biosynthesis of protochlorophyll ester can be increased, the photochemistry rate and the carbon assimilation rateare improved, cell metabolism is renewed, damage caused by low temperature is avoided, and the chrysanthemum can endure cold for several months. The method can significantly improve the market prospect and economic value of chrysanthemum, practical significance of biological adaptation and good domestication of chrysanthemum plants to environmental conditions and seasonal climate change can be achieved, and the method is a technical scheme worth of application and popularization.

Description

technical field [0001] The invention belongs to the technical field of modern agricultural industry, and in particular relates to a method for improving the cold resistance of chrysanthemums. Background technique [0002] Chrysanthemum is a perennial herb, 60-150 cm high. Stems erect, branched or unbranched, pilose. Leaves alternate, with short stalks, leaf blade ovate to lanceolate, 5-15 cm long, pinnately lobed or half-cleft, base cuneate, underside covered with white pubescence, edges coarsely serrated or deeply lobed, base cuneate, with handle. Inflorescence head solitary or several clusters at the top of stems and branches, 2.5-20 cm in diameter, varying in size, single or several clusters at the top of stems and branches; varies greatly due to different varieties. Involucral bracts are multi-layered, the outer layer is green, strip-shaped, the edge is membranous, and the outside is pilose; the ligulate flowers are white, red, purple or yellow. The flower colors are...

Claims

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Application Information

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IPC IPC(8): A01G31/00A01C21/00C05G1/00
CPCA01C21/005A01G31/00C05B7/00C05G5/20C05C5/02C05C9/005C05D9/02C05F11/00
Inventor 彭清红
Owner 界首市彭阁家庭农场