What is the use of plant growth regulators?

What is the use of plant growth regulators? Please introduce that ripening agents or expanding agents are a kind of plant growth regulators, which include natural synthetic compounds and natural plant hormones extracted from living creatures. it is a kind of substance that can inhibit and promote the growth and development of plants, and is widely used in agricultural production all over the world. Ripening agents and expansion agents are common names for some products according to the role of plant growth regulators. As the name implies, the role of ripening agents is to accelerate fruit ripening, in the case of ethephon, its role is mainly through the release of ethylene to promote fruit ripening, and ethylene itself is also a substance that promotes fruit ripening in plants. A little trick in life is to put immature bananas and persimmons with ripe apples. After a few days, bananas and persimmons will become soft and delicious. In fact, it is the ethylene released by apples that ripens bananas and persimmons. Not all fruits and vegetables need to use plant growth regulators. In fact, not all fruits and vegetables need to use ripening agents, expanders or other plant growth regulators. For example, ripening agents are mainly used in the postharvest links of bananas and mangoes; expanding agents are mainly used in some old varieties of kiwifruit, grapes and melons produced in greenhouses and plastic sheds in winter and spring, and other vegetables and fruits do not need to be used. The fact that some fruits are not tasty can not be simply attributed to the complex factors affecting the taste of plant growth regulators. There are reasons for the varieties themselves, such as "Red Fuji" apples are sweet and suitable for the taste of most people, and the taste is better than other varieties; there is also the influence of the production environment, such as the northwest region represented by *, which has sufficient light and a large temperature difference between day and night. Melons and fruits produced in other areas have higher sugar content and are delicious. There are also differences in cultivation techniques, such as appropriate planting density, soil testing formula fertilization, especially more organic fertilizer, and reasonable watering and other cultivation techniques, the fruit produced has high sweetness, good flavor and delicious taste; on the contrary, the planting density is too high, do not pay attention to the application of organic fertilizer, a large amount of nitrogen fertilizer, is not conducive to the accumulation of sugar and flavor formation of the fruit, it is not delicious. In addition, the blind pursuit of high yield and the use of greenhouse and greenhouse facilities for early production and listing are also one of the reasons for the significant decline in the quality of some fruits. "Red with a touch" and "roughness with a touch", plant growth regulators are not so magical. Plant growth regulators are used only when necessary, not all vegetables and fruits. Even agricultural products that have used plant growth regulators are safe, and people will not endanger their health if they eat them. According to the regulations of Pesticide Registration data of our country, each plant growth regulator needs to do residue test in different ecological areas of our country for more than 2 years before registration. It will be approved only if the test results show that the residues in fruits and vegetables pose no risk to human health. When evaluating whether a plant growth regulator can be registered and used, ensuring human health and safety is the first priority, and products that are risky to human health and safety will not be approved for registration. Click to get more regulator application techniques click to get more pesticide application techniques