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

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...

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)