Method for relieving low-temperature stress injury of chili seedlings

Abstract

The invention discloses a method for relieving low-temperature stress injury of chili seedlings. The method comprises steps as follows: selecting chili seeds with uniform size and full and consistentgrains; uniformly mixing vermiculite and perlite in the volume ratio being 3:1 to serve as a matrix; preparing EBR (24-epibrassinolide); performing disinfection, seed soaking and germination acceleration treatment on the chili seeds; sowing the chili seeds after germination acceleration treatment in the matrix, and watering the chili seeds with 1 / 2 Hoagland nutrient solution; after seedlings comeinto 6-7 true leaves, spraying an EBR spray solution with the concentration being 0.1 mu M to leaves of seedlings at the low-temperature stress temperature at 20:00 clock every day and spraying the EBR spray solution continuously for 3 d, wherein the low-temperature stress temperature is the temperature which is lower than 20 DEG C in the daytime and is 5-12 DEG C at night. By means of the method,the cold resistance of the chili seedlings can be improved, stress injury of low-temperature cold damage to the chili seedlings can be relieved, and the scheme is convenient and easy to implement andnot limited by territory.

Description

technical field [0001] The application belongs to the technical field of vegetable seedling cultivation, and in particular relates to a method for alleviating the damage caused by low temperature stress to pepper seedlings. Background technique [0002] In recent years, my country's facility vegetable production has developed rapidly. Solar greenhouses and greenhouses are currently the main types of facilities in my country, mainly used for vegetable production in cold seasons. However, due to the weak environmental regulation ability of horticultural facilities such as solar greenhouses and greenhouses, vegetable production often suffers from low temperature (suboptimal temperature, lower than 20°C during the day / between 5-12°C or lower at night), weak light (less than 100μmol m -2 ·s -1 ) Adversity hazards. [0003] At present, low temperature stress has become the most common and most influential limiting factor for pepper production. After pepper plants are subjected ...

AI Technical Summary

Problems solved by technology

[0003] At present, low temperature stress has become the most common and most influential limiting factor for pepper production. After pepper plants are subjected to low temperature stress, their growth will be significantly inhibited, and the fresh weight and dry weight of the aerial parts of the plant will decrease rapidly, which seriously affects the production of pepper. Normal growth and development lead to a sharp drop in yield and quality, which will bring greater economic losses to farmers and affect market supply

Images