The effect of paclobutrazol

Paclobutrazol is a growth regulator that is often used in planting production and is very beneficial to plant growth. It can inhibit the elongation of plant stems, promote plant tillering, and is also very beneficial to plant resistance. And paclobutrazol is suitable for a variety of plants, its effect is very good. So what exactly does paclobutrazol do? The following small series will briefly introduce you, let's take a look together!

1. Change hormone levels

Paclobutrazol can synthesize gibberellin, delay its growth time, shorten internodes and prevent plants from growing too high. It can also reduce the synthesis of indoleacetic acid in plants. Increase the abscisic acid content in plants and promote ethylene release. Therefore, the color of leaves of plants is deepened, and the contents of chlorophyll, nucleic acid and photosynthetic pigments are improved. It can also enhance the anti-aging ability and vitality of plants.

2. Improve plant stress resistance

Paclobutrazol can also improve plant resistance and resistance to pathogens. The epidermal cells of the plant expand and then sink, thereby increasing stomatal resistance, transpiration and reducing water evaporation. When water evaporation decreases, plant cells are less threatened and normal growth and development are promoted. Enhance drought resistance of the plant itself. And if paclobutrazol is applied, it can also improve the cold resistance of plants. Because paclobutrazol can enhance the abscisic acid content of stress hormone in plants, reduce the damage caused by low temperature to leaves.

3. Promote lateral bud growth

Paclobutrazol has a very good ability to inhibit plant elongation. It can reduce the apical growth advantage of plants, so it is very advantageous for the growth of lateral buds of plants. Especially for the growth of crops such as rice, it can promote rice seedling tillering, advance rice seedling tillering time and improve tillering quantity. Therefore, the rice is prevented from growing too high, dwarfing rice plants and thickening the stem base of rice.

4. Bactericidal effect

In fact, paclobutrazol was first used mainly as a fungicide. Paclobutrazol has obvious control effect on various plant diseases, such as rape sclerotinia, wheat powdery mildew and apple anthracnose. Because paclobutrazol can inhibit the activity of pathogens of these diseases. It has broad spectrum of bacteriostasis, and can also inhibit the growth of weeds, dwarf weeds, delay the growth of weeds, and reduce the harm of weeds.

5. Application on fruit trees

Paclobutrazol is also very good for fruit tree applications. Paclobutrazol can control the growth of fruit tree shoots and dwarf fruit trees. Promote flower bud differentiation of fruit trees, improve flowering quantity of fruit trees, and effectively control fruit setting of fruit trees. Therefore, adjusting the harvest time of fruit trees can not only improve the yield of fruit trees, but also greatly improve the quality of fruit trees. In addition, it can also reduce the amount of branches cut, which is very beneficial to the growth of fruit trees.

This is a brief introduction to the effects of paclobutrazol. Today's introduction is here, this article is for reference only, I hope to be able to help you oh!