Thidiazuron is a phenylurea plant growth regulator that primarily promotes cell division and fruit enlargement by regulating hormone levels in plants.
Thidiazuron Promotes Cell Division
As a cytokinin regulator, thiazuron strongly stimulates cell division and enlargement upon introduction into the plant, significantly increasing cell number. During the cotton seedling stage, it accelerates stem elongation and leaf growth, improving leaf photosynthetic efficiency and resulting in thicker, greener, and more lush leaves. It also breaks seed dormancy, promoting rapid germination and improving seedling emergence and uniformity.
Thidiazuron Delays Leaf Senescence
Thidiazuron inhibits chlorophyll-degrading enzyme activity, delaying leaf senescence, extending the leaf's functional period, and improving photosynthetic efficiency. For example, when used in leafy vegetables or ornamental plants, it can maintain a vibrant green appearance and extend the harvest or viewing period. Thidiazuron Promotes Fruit Enlargement
Thidiazuron can stimulate cell proliferation in fruit and tuber crops (such as grapes, tomatoes, and potatoes), significantly increasing fruit weight and overall yield. For example, using it during the grape enlargement period can increase starch accumulation in the fruit, while using it during the tuber enlargement period in potatoes can boost yield.
Thidiazuron Improves Quality and Stress Resistance
Thidiazuron can also regulate nutrient distribution, reduce flower and fruit drop, and increase fruit set. Under environmental stresses (such as heat and drought), it can enhance stress resistance and reduce disease incidence by optimizing nutrient transport.
