My personal experience with using the growth hormone 920

In the process of people cultivatingorchids, a conclusion has been drawn: after long-term artificialcultivationoforchids, the leaves often become shorter and wider, trending toward dwarfism with each successive generation. This established fact has become a major problem for theorchid-growingindustry and for those who cultivateorchids. I also encountered this problem in the process of cultivatingorchids. This problem givesorchid-growingenthusiasts a headache. The more you grow them, the shorter they get, becoming less and less presentable, just as the Qing dynasty writer Ou Jince described: they become "short-legged women." Everything must be viewed in two halves, and orchids are no exception. The daughter shoots that emerge in spring are robust, and the orchid plants that grow from them are relatively tall. As for orchid plants that grow in summer and autumn, because they are closer to the dormancy period, they stop growing before they have a chance to grow into large plants. This affects the growth height of the orchid plants. Even after the dormancy period, the orchid plants will grow poorly due to environmental and moisture factors during dormancy. To overcome the above problems, experimentation in practice is essential. It was also because I encountered the dwarfing problem incultivationthat I resolved to try an experiment. In the early summer of 1995, I took a pot of upright-leafFour SeasonsOrchidfor the experiment. I used gibberellin (920) as the reagent, using a 1-gram package for this trial, dissolved in a small amount of alcohol, then diluted with 1000 milliliters of water. When using, draw 10 ppm with a graduated syringe and add this 10 ppm growth hormone liquid to 100 milliliters of clean water. It can be applied with a spray bottle or brushed on with a brush; if there are few orchid plants, brushing the leaves is more even. Once a week. After five or more applications, I observed obvious changes in the orchid plants and leaves. They grew faster and taller than orchid leaves growing at the same time. "The old plant (mother plant) not only bloomed two flower spikes without degenerating, but also produced two daughter shoots as offspring. The growth of these two new seedlings was particularly noticeable." After only six applications of the 920 growth hormone, these two new seedlings, in that same year (only 3 months), reached the height of the old plant, even exceeding the old plant by 80 millimeters. Leaf width and leaf thickness were the same as the old plant (mother plant). However, due to rapid growth, the leaf bases were weak and lodging occurred. The solution was to first use a fixing method to prevent them from falling over and to help them stand. Then apply monopotassium phosphate quick-acting fertilizer, once a week, at a concentration of 5 parts per thousand. After one month, even when the binding string was loosened they could not fall over, and even when the orchid plants were bent by hand they could stand back up after being released, and the leaf bases felt both tough and firm to the touch. Through this experiment, I came to understand the effect of applying growth hormone on summer and autumn orchid seedlings. It is the 920 growth hormone that promotes cell elongation in orchid leaves, thereby accelerating the growth of the orchid plant and speeding up height growth. This experiment solved the problem of orchid plant dwarfing. In the experiment, attention must be paid to the optimal timing for applying "920," starting from the leaf buds, beginning when the leaves unfold, which is the most suitable time during theorchid'sgrowth period. If orchid plants have diseases or are weak and frail, they are not suitable for applying "920." During the application period, it should be combined with nitrogen fertilizer. After application, potassium fertilizer should be supplemented in time to strengthen the stems and grow full leaf bases. When applying "920" growth hormone, attention must be paid to the influence of environmental factors, otherwise it will fail. The above experimental results show that the problem of orchid dwarfing with each successive generation can be solved. Whether it is effective for all orchid varieties remains to be further tested and verified. (Tian Qiao)