24-epiBrassinolide Brassinolide 90% Tc Plant Hormone

Greentree Chemical Co., Limited is one of the leading manufacturers and suppliers of 24-epibrassinolide brassinolide 90% tc plant hormone in China. With abundant experience, our factory offer high quality chemicals made in China with competitive price. Welcome to contact us for free sample.

24-EpiBrassinolide can be widely used in agricultural production, such as promoting crop growth and development, increasing crop yields, and improving fruit quality.

(1) Promote cell elongation and division

Treatment of the second internode of bean seedlings with 10 ng. L-1 of brassinolide can cause the internode to significantly elongate and bend, accelerate cell division, expand the internode, and even crack. This comprehensive growth response is used as a bioassay for brassinolide. BR promotes cell division and elongation because it enhances RNA polymerase activity and promotes the synthesis of nucleic acids and proteins; BR1 can also enhance ATPase activity, promote the secretion of H+ from the plasma membrane to the cell wall, and cause cell elongation.

BR can also promote the growth of the whole plant. After treating the second internode of bean seedlings with brassinolide, the internode can grow within a few days; after a few weeks, the growth of the whole plant can be promoted, including plant height, plant weight, pod weight, and number of buds, which are significantly increased compared with the control group.

(2) Promote photosynthesis

BR can promote the activity of RuBP carboxylase in wheat leaves and increase the photosynthetic rate. BR, 9 days after the peanut seedlings were treated, the chlorophyll content was 10%~12% higher than the control, and the photosynthetic rate was accelerated by 15%. The CO2 tracer test showed that BR1 treatment promoted the transport of photosynthetic products in the leaves to the panicle.

(3) Improve stress resistance

When rice seedlings were grown under low temperature and rainy conditions, if the roots were soaked in 10mg·LBR1 solution for 24h, the plant height, leaf area, tiller number, and root number were higher than the control, and the seedling survival rate was high and the aboveground dry weight increased significantly. In addition, BR1 also enhanced the low temperature resistance of rice, eggplant, cucumber seedlings, etc.

In addition, BR can also enhance the resistance of plants to drought, disease, salt damage, herbicide, pesticide damage and other adversities through its effect on cell membranes. Therefore, some people call it "adversity mitigation hormone."

(4) Other physiological effects

Epibrassinolide has a "young and delayed aging" effect on mung bean hypocotyl segments and promotes the elongation of cucumber hypocotyls. BR has a significant effect on improving the activity of nitrate reductase (NR) in cucumber cotyledons.

24-EpiBrassinolide can regulate photosynthesis, respiration, and transpiration of plants. It can promote the activity of RuBP carboxylase in plant leaves, increase chlorophyll content, and increase the assimilation capacity of C02, thereby increasing the photosynthetic rate and relieving the inhibitory effect of light on growth. Compared with photosynthesis, the effective concentration of 24-EpiBrassinolide to promote respiration is lower, the speed of action is faster, and the effect is maintained for a longer time. Spraying the leaves of apples and walnuts with natural 24-EpiBrassinolide can significantly reduce the transpiration intensity of leaves.

Appropriate concentrations of 24-EpiBrassinolide can promote the growth of callus tissue. When the concentration is too high, the callus tissue becomes browner and inhibits the growth of callus tissue. 24-EpiBrassinolide has the effect of keeping fresh and anti-aging for cut calla lilies. In addition, 24-EpiBrassinolide also shows good effects in improving plant resistance. For example, 24-EpiBrassinolide can increase the relative water content and critical saturation deficit of leaves of apples and walnuts, reduce natural saturation deficit, water requirement, transpiration rate, cell membrane permeability and damage rate, reduce water loss in leaves, and improve their drought resistance.

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