A kind of compound and application thereof for improving pollination and fertilization ability of litchi

Abstract

The invention belongs to the technical field of plant cultivation, and in particular relates to a compound for improving the pollination and fertilization ability of litchi at flowering stage and its application. In order to search for a safe and environmentally friendly reagent that can promote litchi pollination and fertilization in production, the present invention sprays litchi at the flowering stage Nano-titanium dioxide solution, or the preparation of pollination solution containing nano-titanium dioxide for artificial pollination can improve the natural pollination and fertilization of litchi flowering period or artificial pollination, thereby improving the pollination and fertilization ability of litchi flowering period, so as to reduce the risk of litchi flowering due to rainy low temperature or drought high temperature. The problem of poor pollination and fertilization; the application of nano-titanium dioxide in the flowering period of litchi can not only effectively prolong the flowering time of litchi and the meeting time of male and female flowers, but also improve the pollen germination rate, pollen vigor and stigma receptivity, promote pollination and fertilization of litchi flowering, and enhance the flowering time of litchi. The ability to resist low temperature rain or high temperature drought can increase the fruit setting rate, and can reduce the rate of spraying loss, which is safe and non-toxic.

Description

Technical field[0001]The present invention belongs to the field of plant cultivation techniques, and in particular, the present invention relates to compounds which increase the ability of litchi period and its application.Background technique[0002]Litchi Chinensis Sonn. The famous subtropical evergreen fruit trees in Sapindaceae, originated from China, known as fruit shaped, color, fragrance, taste and nutritious and nutritious For the "Lingnan Fruit King", "Human Fairy", "Buddha" and "Fruit King", etc., the reputation is well known. my country is the Litchira Country and the world's first production big country, mainly distributed in Guangdong, Guangxi, Fujian, Hainan and Taiwan and other places, 81% and 70% respectively from the world, respectively. In one of the rural industrial structure in the provinces of South China, Litchi is one of the pillar industries. Litchi is also one of the most active power of my country, exported to the potential of the exports.[0003]Litchi is a fr...

AI Technical Summary

Problems solved by technology

During the production of litchi, the phenomenon of "flowers but not fruit" or "less fruit" often occurs, resulting in low and unstable yields. One of the main reasons for this phenomenon is that it is affected by bad weather during flowering, such as low temperature during flowering in spring. Overcast and rainy, low temperature will delay the flowering of lychees, high air humidity will affect the activities of bees, or excessive drought during the flowering period will make the nectar sticky, which is not conducive to the activities of bee vectors, resulting in poor pollination and fertilization, and in severe cases, it may lead to no harvest for the year

[0005] Although building a temporary shelter before the lychee flowering period avoids the impact of rain, it still cannot solve the problem of high air humidity and low temperature during the rainy period, and the cost is high

Using chemical regulation methods such as plant growth regulators, such as spraying putrescine (Put) on the soon-to-open female flowers during the flowering period to prolong the life of the pistils, and spraying boric acid during pollination to promote the germination and elongation of pollen tubes can improve the flower quality to a certain extent. However, the chemical reagents are sprayed on the plants in the form of water formulations. After application, only a small part is absorbed by the plants, and most of the unused parts enter the water body, soil and air along with rainwater leaching, scouring and evaporation, resulting in loss of fertilizer efficiency and environmental pollution

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