Brassinosteroids (BRs) Improve Plant Growth And Yield

- Oct 31, 2017 -

In 1970, a new compound was found in rape pollen, namely of brassinosteroids. In 1979, at the 14th International plant growth substances, of brassinolide sterols such as plant growth regulators was endorsed. The world's sixth largest hormone, both of gibberellin, cytokinin and Auxin synthesis effects, adjust and crop diversification.

 

Brassinosteroids (BRs) are polyhydroxylated steroidal plant hormones that play pivotal role in the regulation of various plant growth and devel pment processes. BR biosynthetic or signaling mutants clearly indicate that these plant steroids are essential for regulating a variety of physiological processes including cellular expansion and proliferation, vascular differentiation, male fertility, timing senescence, and leaf development. Moreover, BRs regulate the expression of hundreds of genes, affect the activity of numerous metabolic pathways, and help to control overall developmental programs leading to morphogenesis. 

 

On the other hand, the potential application of BRs in agriculture to improve growth and yield under various stress conditions including drought, salinity,extreme temperatures, and heavy metal (Cd, Cu, Al, and Ni) toxicity, is of immense significance asthese stresses severely hamper 

the normal metabolism of plants. Keeping in mind the multifaceted role of BRs, an attempt has been made to cover the various aspects mediated by BRs particularly under stress conditions and a possible mechanism of action of BRs has also been suggested.

 

Solubility

Natural brassinolide 0.1%SP 1g diluted by 15-20L water and applies foliar spraying, or seed treatment.

 

Application

Brassinolide is a higher biological activity of steroidal compounds, and widely presents in plants. At all stages of plant growth and development, Brassibolide not only promotes vegetative growth, but also facilitate fertilization. Synthetic Brassibolide has high activity, and is absorbed through the leaf, stem and root. At very low concentrations, it can significantly increase the plant's vegetative growth and fertilization.

 1. Promote the growth of plant to increase yield. 

 2. Raise the ratio of fruit bearing and increase the unit weight. 

 3. Enhance the resistance of the plant to drought and cold weather. 

 4. Enhance the immunity of the plant. Used in tissue culture, regulate the differentiation of the tissue.

 5. Used in tissue culture, regulate the differentiation of the tissue.

 

Target crops:

 1. Grain and oil crops: rice, wheat, corn, cotton, rapeseed, and etc.

 2. Fruits: citrus, apple, pear, peach, grape, banana, and etc.

 3. Tuber crops: peanut, potato, garlic, cassava, taro, and etc.

 4. Others: vegetables, tomato, chili pepper, melons, cucumber, eggplant, tea, tobacco, and etc.


The Usage and Dosage of Brassinolide Used on Different Crops

Crops

Dosage(mg/L)

Method of use

Effects

Wheat

0.05-0.5

Seed soaking 24h.

Improve the development of root system. Increase plant height

Corn 

0.01

Pumping filaments stage spray whole plant

Reduce the abortion rate of top corn ear

Rice 

0.01

Foliage spray in initial heading stage

Increase numberweight of wheatear, increase fruit-bearing rate and 1000-grain weight.

Soybean

0.01

Foliage spray leafs in seedling stage

Increase plant height and nodule bacteria nitrogen fixation ability

Cotton

0.05-0.13

Foliage spray in early florescence

Improve disease resistance ability

Cucumber 

0.01

Foliage spray in seedling stage

Improve the low-temperature resistance of seedling

Eggplant

0.1

Flower soaking

Increase fruit-set rate

Pepper

0.01

Foliage spray 2-3times between early florescence and fruit bear stage ,every 15 days one time

Improve flowering in advance, increase fruit and fruit weight

Rape

0.2

Foliage spray once in podding stage and florescence respectively

Increase Silique number and 1000-grain weight

 

 

If had any questions, please contact with us.

Contact: Maggie Jin   Email: chemicals@pandustry.com

 


Previous: Praziquantel Basic Information Next: Plant Hormones For Plant Tissue Culture

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