Breaking seed dormancy,The optimum temperature for germination of lettuce seeds is 15-29℃. Above 25℃, the germination ability is significantly reduced under lightless conditions. Seeds that break dormancy can improve their germination ability under high temperatures. When the soil temperature reaches 27℃, lettuce seeds can usually be induced to dormant.
Thiourea

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.

Gibberellic Acid GA3:
For radishes that have not undergone low-temperature vernalization but want to bloom, 20-50 mg/L Gibberellic Acid GA3 solution can be dripped onto the growth point before the radish has overwintered, so that it can bolt and bloom without low-temperature vernalization.

There are many kinds of plant growth regulators that can be used on garlic. Most of them can improve the disease resistance of garlic, increase yield, or promote garlic bolting and improve garlic quality. Here are some common regulators.