Cotton low-temperature regulator and preparation method and use method thereof

Abstract

The invention provides a cotton low-temperature regulator and a preparation method and use method thereof. 24-epibrassinolide in a cotton low-temperature regulator can help to improve the low-temperature resistance of the cotton seedling. Under dissolution action of ethanol, the 24-epibrassinolide and azone are fully dissolved in water so that the components in the form of a solution can be absorbed by cotton seedlings. The azone can be used as a penetrant and can promote cotton leaf absorption with the low-temperature regulator. Other components such as 24-epibrassinolide can permeate into the cotton leaves. The 24-epibrassinolide, Tween and organosilicone produce synergism to improve the effects of the low-temperature regulator so that the low-temperature resistance of the cotton seedlings is improved. The experimental result shows that the cotton low-temperature regulator can improve the low-temperature resistance in the cotton seedling period, delay or prevent the damage caused bya low temperature to the cotton seedling cell membrane, relieve the damage to chlorophyll at a low temperature, keep the high photosynthetic capacity of the cotton seedlings under low temperature stress and promote the plant growth.

Description

technical field [0001] The invention belongs to the technical field of cotton low-temperature adversity regulation, and in particular relates to a cotton low-temperature regulator, a preparation method and a use method thereof. Background technique [0002] Since the mid-1990s, the inland cotton region in Northwest China has become a dominant cotton producing area in the country. In recent years, 60% of the cotton production comes from the inland cotton areas in the Northwest, but the inland Northwest has a short frost-free period and is vulnerable to chilling and frost damage in the early stage. Cotton seedlings encountering low temperature will cause cotton seedlings to be weak, slow in growth, wilting or yellowing, and it is easy to form "old seedlings"; and low temperature will make cotton plants susceptible to fungus infection and induce various diseases, resulting in lack of seedlings in fields and even replanting , causing serious economic losses. [0003] Nowadays,...

AI Technical Summary

Problems solved by technology

The traditional seedling raising and transplanting technology uses nutrient pots for initial seedling raising, but the traditional nutrient pot seedling raising and transplanting has the problems of labor-intensive, cumbersome management, and high labor intensity, which is not suitable for the current rural labor shortage.

The new seedling transplanting technology replaces the traditional nutrient pot with a comprehensive seedling base. Although it solves the problems of nutrient pot seedlings to a certain extent, the new seedling transplanting requires high technical content and requires a comprehensive seedling base, which will increase significantly. The cost of cotton planting will inevitably reduce the income of cotton farmers compared to direct seeding

Images