What plant growth regulators are used for green beans?

When planting green beans, various planting problems are often encountered, such as the pod setting position of green beans is too high, or the bean plants grow vigorously, or the plants grow slowly, or the green beans have flowers and pods falling, etc. At this time, the scientific use of growth regulators can greatly improve the situation, so that the beans can bloom more and set more pods, thereby increasing the yield of green beans.

(1) Promote the growth of green beans
Triacontanol:
Spraying Triacontanol can increase the pod setting rate of green beans. After spraying Triacontanol on beans, the pod setting rate can be increased. Especially in spring when low temperatures affect pod setting, after using Triacontanol alcohol treatment, the pod setting rate can be increased, which is conducive to early high yield and increased economic benefits.

Usage and dosage: At the beginning of the flowering period and the early stage of pod setting of green beans, spray the whole plant with Triacontanol 0.5 mg/L concentration solution, and spray 50 liters per mu. Pay attention to spraying Triacontanol on green beans, and control the concentration to prevent the concentration from being too high. It can be mixed with pesticides and trace elements when spraying, but it cannot be mixed with alkaline pesticides.

(2) Regulate plant height and control vigorous growth
Gibberellic Acid GA3:
After dwarf green beans emerge, spray with 10~20 mg/kg Gibberellic Acid GA3 solution, once every 5 days, for a total of 3 times, which can make the stem nodes elongate, increase branches, bloom and pod early, and advance the harvest period by 3~5 days.

Chlormequat Chloride (CCC), Paclobutrazol (Paclo)
Spraying chlormequat and paclobutrazol in the middle growth period of creeping green beans can control plant height, reduce closure and reduce the occurrence of diseases and pests.
Use concentration: Chlormequat Chloride (CCC) is 20 mg/ dry gram, Paclobutrazol (Paclo) is 150 mg/kg.

(3) Promote regeneration
Gibberellic Acid GA3:
To promote the germination of new buds in the late growth period of green beans, 20 mg/kg Gibberellic Acid GA3 solution can be sprayed on the plants, usually once every 5 days, and 2 sprays are sufficient.

(4) Reduce shedding
1-Naphthyl Acetic Acid (NAA):
When the beans are flowering and forming pods, high or low temperatures will increase the shedding of flowers and pods of green beans. During the flowering period of green beans, spraying 5~15 mg/kg 1-Naphthyl Acetic Acid (NAA) solution can reduce the shedding of flowers and pods and can help them mature earlier. As the number of pods increases, fertilizers must be added to achieve high yields.