Pollen suspension liquid for liquid pollination of fruit trees, and preparation method thereof

A technology of pollen suspension and liquid pollination, which is applied in the fields of botany equipment and methods, applications, plant genetic improvement, etc., and can solve the problems of difficult long-distance transportation, failure to germinate (generally at least 4 to 5 hours before germination, moldy deterioration, etc.) , to achieve the effect of improving dispersion and stability, slowing down the process of drying water loss and slowing down the process of water absorption

Inactive Publication Date: 2012-02-08
ZHENGZHOU FRUIT RES INST CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to current research, most of the suspensions used for liquid pollination use sucrose and borax as the main components. Conventional use of sucrose has two main drawbacks: (1) the sucrose solution will become moldy and deteriorate when placed for a period of time, especially at high concentrations. For example, 10% (w / v) sucrose solution is more prone to mildew and deterioration, and it is difficult to store for a long time even if it is stored at low temperature. It is more difficult to store if it is prepared as a concentrated solution, and it is even more difficult to transport it over long distances if it enters commercial demonstration and promotion; (2) sucrose It belongs to disaccharides and does not have physical and chemical properties such as stability, thickening, emulsification, suspension, and film formation. The role of sucrose is mainly to maintain osmotic pressure and prevent pollen from excessively absorbing water and bursting to lose vitality. If sucrose is added to the suspension to spray pollination, the pollen containing When the pollen droplet falls on the stigma, as the droplet dries and becomes smaller, the concentration of components including sucrose in the suspension will gradually increase, the osmotic pressure of the droplet will increase rapidly, and the pollen will appear wrinkled to varying degrees. Shrunken and unable to germinate (usually at least 4 to 5 hours before germination)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The pollen suspension for fruit tree liquid pollination comprises the following components in weight percent: 0.005% of boric acid, 0.005% of calcium nitrate, 0.01% of sodium carboxymethylcellulose, 0.2% of kiwi pollen with a germination rate of 80% and the rest of water.

[0029] The preparation method of the pollen suspension is as follows: taking various raw materials in proportion, dissolving sodium carboxymethyl cellulose in water, adding boric acid and calcium nitrate to dissolve, finally adding kiwi fruit pollen and mixing to obtain the kiwi fruit pollen suspension for liquid pollination.

Embodiment 2

[0031] The pollen suspension for fruit tree liquid pollination comprises the following components in weight percent: 0.005% of boric acid, 0.005% of calcium nitrate, 0.01% of sodium carboxymethyl cellulose, 0.3% of kiwi pollen with a germination rate of 77% and the rest of water.

[0032] The preparation method of the pollen suspension is as follows: taking various raw materials in proportion, dissolving sodium carboxymethyl cellulose in water, adding boric acid and calcium nitrate to dissolve, finally adding kiwi fruit pollen and mixing to obtain the kiwi fruit pollen suspension for liquid pollination.

Embodiment 3

[0034] The pollen suspension for liquid pollination of fruit trees comprises the following components in weight percent: 0.005% of boric acid, 0.005% of calcium nitrate, 0.01% of sodium carboxymethylcellulose, 0.4% of frozen kiwi pollen with a germination rate of 75%, and the rest of water.

[0035] The preparation method of the pollen suspension is as follows: take each raw material in proportion, dissolve sodium carboxymethyl cellulose in water, and then add boric acid and calcium nitrate to dissolve; Put it in a glass container at 2°C for 12 hours, then remove the lid of the glass container, and place it at 22°C with a humidity of 80% for 2 hours to complete the pre-wetting treatment. The pre-wetting process should avoid direct sunlight. Finally, add the pre-wet treated kiwi pollen to the mixed aqueous solution of sodium carboxymethyl cellulose, boric acid and calcium nitrate and mix evenly to obtain the pollen suspension for kiwi fruit liquid pollination.

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PUM

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Abstract

The invention belongs to the technical field of artificial pollination of fruit trees, specifically relates to a pollen suspension liquid for liquid pollination of fruit trees, and a preparation method thereof. The pollen suspension liquid mainly comprises the following components, by weight, 0.005-0.02% of boric acid, 0.005-0.01% of calcium nitrate, 0.01-0.02% of sodium carboxymethyl cellulose, 0.2-0.4% of pollen, and the balance of water. The pollen suspension liquid provided by the present invention can be placed for a long time, and can be prepared into a concentrated solution. In addition, the pollen suspension liquid provided by the present invention is easy to use, and can be directly sprayed on pistillate flower in a flowering stage to carry out the artificial liquid pollination, such that the fruit set percentage of the fruit trees can be more than 48%.

Description

technical field [0001] The invention belongs to the technical field of artificial pollination of fruit trees, and in particular relates to a pollen suspension for liquid pollination of fruit trees and a preparation method thereof. Background technique [0002] Most fruit trees are cross-pollinated plants, and the quality of pollination is a key factor in determining fruit tree fruit, yield and quality. Even for some parthenocarpic or apomixis fruit trees, in order to improve fruit yield and quality, the stimulation of pollination and fertilization is usually indispensable (Lv Liuxin et al., 1995). Pollination is the transfer of pollen between the same flower or different flowers of the same fruit tree, yet many fruit trees exhibit varying degrees of self-incompatibility. For this, pollen needs to be transferred between different individuals of the same fruit tree. Pollen transport is highly susceptible to wind, insects, competing nectar plants, and even birds and other ani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 赵长竹方金豹陈锦永顾红张威远魏世忠
Owner ZHENGZHOU FRUIT RES INST CHINESE ACADEMY OF AGRI SCI
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